{"id":"https://openalex.org/W4416746607","doi":"https://doi.org/10.1183/23120541.01213-2025","title":"Frailty and social, clinical and computed tomography imaging factors in COPD: a multicentre study","display_name":"Frailty and social, clinical and computed tomography imaging factors in COPD: a multicentre study","publication_year":2025,"publication_date":"2025-11-27","ids":{"openalex":"https://openalex.org/W4416746607","doi":"https://doi.org/10.1183/23120541.01213-2025","pmid":"https://pubmed.ncbi.nlm.nih.gov/42267375","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/13244204"},"language":"en","primary_location":{"id":"doi:10.1183/23120541.01213-2025","doi":"https://doi.org/10.1183/23120541.01213-2025","is_oa":true,"landing_page_url":"https://doi.org/10.1183/23120541.01213-2025","pdf_url":null,"source":{"id":"https://openalex.org/S2738738902","display_name":"ERJ Open Research","issn_l":"2312-0541","issn":["2312-0541"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-b","doyens","jufo-1","ki-jl-1","norway-1","oarl","poland-40","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310317833","host_organization_name":"European Respiratory Society","host_organization_lineage":["https://openalex.org/P4310317833"],"host_organization_lineage_names":["European Respiratory Society"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ERJ Open Research","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1183/23120541.01213-2025","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5071627021","display_name":"Yusuke Shiraishi","orcid":"https://orcid.org/0000-0003-4978-5673","observed_orcids":["https://orcid.org/0000-0003-4978-5673"]},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yusuke Shiraishi","raw_affiliation_strings":["Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan"],"raw_orcid":"https://orcid.org/0000-0003-4978-5673","affiliations":[{"raw_affiliation_string":"Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]},{"raw_affiliation_string":"1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5049929639","display_name":"Naoya Tanabe","orcid":"https://orcid.org/0000-0002-7481-0212","observed_orcids":["https://orcid.org/0000-0002-7481-0212"]},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]},{"id":"https://openalex.org/I4210150196","display_name":"Kyoto University Hospital","ror":"https://ror.org/04k6gr834","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210150196"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Naoya Tanabe","raw_affiliation_strings":["Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan","1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan"],"raw_orcid":"https://orcid.org/0000-0002-7481-0212","affiliations":[{"raw_affiliation_string":"Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]},{"raw_affiliation_string":"Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan","institution_ids":["https://openalex.org/I4210150196"]},{"raw_affiliation_string":"1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060179089","display_name":"Tomoki Maetani","orcid":"https://orcid.org/0000-0001-5063-662X","observed_orcids":["https://orcid.org/0000-0001-5063-662X"]},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tomoki Maetani","raw_affiliation_strings":["Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]},{"raw_affiliation_string":"1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039416311","display_name":"Yohei Oshima","orcid":"https://orcid.org/0000-0003-0680-4045","observed_orcids":["https://orcid.org/0000-0003-0680-4045"]},"institutions":[{"id":"https://openalex.org/I4210150196","display_name":"Kyoto University Hospital","ror":"https://ror.org/04k6gr834","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210150196"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yohei Oshima","raw_affiliation_strings":["Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan","2Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan","institution_ids":["https://openalex.org/I4210150196"]},{"raw_affiliation_string":"2Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan","institution_ids":["https://openalex.org/I4210150196"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089466331","display_name":"Yuji Yoshioka","orcid":"https://orcid.org/0000-0002-3361-3757","observed_orcids":["https://orcid.org/0000-0002-3361-3757"]},"institutions":[{"id":"https://openalex.org/I4210150196","display_name":"Kyoto University Hospital","ror":"https://ror.org/04k6gr834","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210150196"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yuji Yoshioka","raw_affiliation_strings":["Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan","2Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan","institution_ids":["https://openalex.org/I4210150196"]},{"raw_affiliation_string":"2Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan","institution_ids":["https://openalex.org/I4210150196"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087650711","display_name":"Ryota Hamada","orcid":"https://orcid.org/0000-0002-8547-5173","observed_orcids":["https://orcid.org/0000-0002-8547-5173"]},"institutions":[{"id":"https://openalex.org/I4210150196","display_name":"Kyoto University Hospital","ror":"https://ror.org/04k6gr834","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210150196"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ryota Hamada","raw_affiliation_strings":["Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan","2Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan","institution_ids":["https://openalex.org/I4210150196"]},{"raw_affiliation_string":"2Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan","institution_ids":["https://openalex.org/I4210150196"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063835373","display_name":"Masamitsu Enomoto","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210097197","display_name":"Rakuwakai Otowa Hospital","ror":"https://ror.org/012nfex57","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210097197"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masamitsu Enomoto","raw_affiliation_strings":["Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan","3Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan","institution_ids":["https://openalex.org/I4210097197"]},{"raw_affiliation_string":"3Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan","institution_ids":["https://openalex.org/I4210097197"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023414127","display_name":"Michiko Tsuchiya","orcid":"https://orcid.org/0009-0006-9699-4039","observed_orcids":["https://orcid.org/0009-0006-9699-4039"]},"institutions":[{"id":"https://openalex.org/I4210097197","display_name":"Rakuwakai Otowa Hospital","ror":"https://ror.org/012nfex57","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210097197"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Michiko Tsuchiya","raw_affiliation_strings":["Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan","3Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan"],"raw_orcid":"https://orcid.org/0009-0006-9699-4039","affiliations":[{"raw_affiliation_string":"Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan","institution_ids":["https://openalex.org/I4210097197"]},{"raw_affiliation_string":"3Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan","institution_ids":["https://openalex.org/I4210097197"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062454590","display_name":"Ryo Tachikawa","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210161700","display_name":"Kobe City Medical Center General Hospital","ror":"https://ror.org/04j4nak57","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210161700","https://openalex.org/I4405284131"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ryo Tachikawa","raw_affiliation_strings":["Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Kobe, Japan","4Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Kobe, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Kobe, Japan","institution_ids":["https://openalex.org/I4210161700"]},{"raw_affiliation_string":"4Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Kobe, Japan","institution_ids":["https://openalex.org/I4210161700"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010285205","display_name":"Yuichi Chihara","orcid":"https://orcid.org/0000-0003-0896-283X","observed_orcids":["https://orcid.org/0000-0003-0896-283X"]},"institutions":[{"id":"https://openalex.org/I4405271361","display_name":"National Hospital Organization Minami Kyoto Hospital","ror":"https://ror.org/02aftpt61","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405271361"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yuichi Chihara","raw_affiliation_strings":["Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Joyo, Japan","5Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Joyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Joyo, Japan","institution_ids":["https://openalex.org/I4405271361"]},{"raw_affiliation_string":"5Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Joyo, Japan","institution_ids":["https://openalex.org/I4405271361"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076375720","display_name":"Kunihiko Terada","orcid":"https://orcid.org/0000-0003-3781-0907","observed_orcids":["https://orcid.org/0000-0003-3781-0907"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Kunihiko Terada","raw_affiliation_strings":["Terada Clinic, Respiratory Medicine and General Practice, Himeji, Japan","6Terada Clinic, Respiratory Medicine and General Practice, Himeji, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Terada Clinic, Respiratory Medicine and General Practice, Himeji, Japan","institution_ids":[]},{"raw_affiliation_string":"6Terada Clinic, Respiratory Medicine and General Practice, Himeji, Japan","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011057207","display_name":"Satoru Terada","orcid":"https://orcid.org/0000-0003-1748-5502","observed_orcids":["https://orcid.org/0000-0003-1748-5502"]},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Satoru Terada","raw_affiliation_strings":["Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","Terada Clinic, Respiratory Medicine and General Practice, Himeji, Japan","1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]},{"raw_affiliation_string":"Terada Clinic, Respiratory Medicine and General Practice, Himeji, Japan","institution_ids":[]},{"raw_affiliation_string":"1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057573223","display_name":"Motonari Fukui","orcid":"https://orcid.org/0000-0001-7584-4839","observed_orcids":["https://orcid.org/0000-0001-7584-4839"]},"institutions":[{"id":"https://openalex.org/I4210161392","display_name":"Kitano Hospital","ror":"https://ror.org/05rsbck92","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210161392"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Motonari Fukui","raw_affiliation_strings":["Respiratory Disease Center, Medical Research Institute, Kitano Hospital, PIIF Tazuke-Kofukai, Osaka, Japan","7Respiratory Disease Center, Medical Research Institute, KITANO HOSPIAL, PIIF Tazuke-Kofukai, Osaka, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Respiratory Disease Center, Medical Research Institute, Kitano Hospital, PIIF Tazuke-Kofukai, Osaka, Japan","institution_ids":["https://openalex.org/I4210161392"]},{"raw_affiliation_string":"7Respiratory Disease Center, Medical Research Institute, KITANO HOSPIAL, PIIF Tazuke-Kofukai, Osaka, Japan","institution_ids":["https://openalex.org/I4210161392"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082164954","display_name":"Kaori Ikeda","orcid":"https://orcid.org/0000-0003-2273-9693","observed_orcids":["https://orcid.org/0000-0003-2273-9693"]},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kaori Ikeda","raw_affiliation_strings":["Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan","8Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan"],"raw_orcid":"https://orcid.org/0000-0003-2273-9693","affiliations":[{"raw_affiliation_string":"Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]},{"raw_affiliation_string":"8Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101531044","display_name":"Atsuyasu Sato","orcid":"https://orcid.org/0000-0001-8068-9984","observed_orcids":["https://orcid.org/0000-0001-8068-9984"]},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Atsuyasu Sato","raw_affiliation_strings":["Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]},{"raw_affiliation_string":"1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000964996","display_name":"Susumu Sat\u00f4","orcid":"https://orcid.org/0000-0002-9626-1090","observed_orcids":["https://orcid.org/0000-0002-9626-1090"]},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Susumu Sato","raw_affiliation_strings":["Department of Respiratory Care and Sleep Control Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan"],"raw_orcid":"https://orcid.org/0000-0002-9626-1090","affiliations":[{"raw_affiliation_string":"Department of Respiratory Care and Sleep Control Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]},{"raw_affiliation_string":"Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]},{"raw_affiliation_string":"1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5048538074","display_name":"Toyohiro Hirai","orcid":"https://orcid.org/0000-0002-7431-9044","observed_orcids":["https://orcid.org/0000-0002-7431-9044"]},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Toyohiro Hirai","raw_affiliation_strings":["Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan"],"raw_orcid":"https://orcid.org/0000-0002-7431-9044","affiliations":[{"raw_affiliation_string":"Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]},{"raw_affiliation_string":"1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5049929639"],"corresponding_institution_ids":["https://openalex.org/I22299242","https://openalex.org/I4210150196"],"apc_list":{"value":750,"currency":"EUR","value_usd":808},"apc_paid":{"value":750,"currency":"EUR","value_usd":808},"fwci":0.5303,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.57867413,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":95},"biblio":{"volume":"12","issue":"3","first_page":"01213","last_page":"2025"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10143","display_name":"Chronic Obstructive Pulmonary Disease (COPD) Research","score":0.9413999915122986,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10143","display_name":"Chronic Obstructive Pulmonary Disease (COPD) Research","score":0.9413999915122986,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11011","display_name":"Frailty in Older Adults","score":0.05270000174641609,"subfield":{"id":"https://openalex.org/subfields/2717","display_name":"Geriatrics and Gerontology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10397","display_name":"Nutrition and Health in Aging","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/frailty","display_name":"frailty","score":0.9039999842643738},{"id":"https://openalex.org/keywords/chronic-obstructive-pulmonary-disease","display_name":"chronic obstructive pulmonary disease","score":0.9760000109672546},{"id":"https://openalex.org/keywords/copd-severity","display_name":"COPD severity","score":0.9869999885559082},{"id":"https://openalex.org/keywords/living-alone","display_name":"living alone","score":0.6850000023841858},{"id":"https://openalex.org/keywords/unemployment","display_name":"unemployment","score":0.9340000152587891},{"id":"https://openalex.org/keywords/cardiovascular-disease","display_name":"cardiovascular disease","score":0.7770000100135803},{"id":"https://openalex.org/keywords/gastroesophageal-reflux-disease","display_name":"gastroesophageal reflux disease","score":0.9850000143051147},{"id":"https://openalex.org/keywords/neutrophil-to-lymphocyte-ratio","display_name":"neutrophil-to-lymphocyte ratio","score":0.8999999761581421},{"id":"https://openalex.org/keywords/emphysema","display_name":"emphysema","score":0.9390000104904175},{"id":"https://openalex.org/keywords/dietary-behaviour","display_name":"dietary behaviour","score":0.5609999895095825},{"id":"https://openalex.org/keywords/exercise","display_name":"physical activity","score":0.9679999947547913},{"id":"https://openalex.org/keywords/serum-biomarkers","display_name":"serum biomarkers","score":0.6119999885559082}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.9776999950408936},{"id":"https://openalex.org/C2776780178","wikidata":"https://www.wikidata.org/wiki/Q199804","display_name":"COPD","level":2,"score":0.8762999773025513},{"id":"https://openalex.org/C2992435398","wikidata":"https://www.wikidata.org/wiki/Q6934595","display_name":"Multicenter study","level":3,"score":0.5769000053405762},{"id":"https://openalex.org/C151956035","wikidata":"https://www.wikidata.org/wiki/Q1132755","display_name":"Logistic regression","level":2,"score":0.573199987411499},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.5717999935150146},{"id":"https://openalex.org/C188816634","wikidata":"https://www.wikidata.org/wiki/Q2113324","display_name":"Prospective cohort study","level":2,"score":0.5286999940872192},{"id":"https://openalex.org/C2779134260","wikidata":"https://www.wikidata.org/wiki/Q12136","display_name":"Disease","level":2,"score":0.49939998984336853},{"id":"https://openalex.org/C201903717","wikidata":"https://www.wikidata.org/wiki/Q1778788","display_name":"Cohort study","level":2,"score":0.4846999943256378},{"id":"https://openalex.org/C2992779976","wikidata":"https://www.wikidata.org/wiki/Q3286546","display_name":"Pulmonary disease","level":2,"score":0.44530001282691956},{"id":"https://openalex.org/C72563966","wikidata":"https://www.wikidata.org/wiki/Q1303415","display_name":"Cohort","level":2,"score":0.42820000648498535},{"id":"https://openalex.org/C2776042228","wikidata":"https://www.wikidata.org/wiki/Q35869","display_name":"Asthma","level":2,"score":0.34940001368522644},{"id":"https://openalex.org/C30036603","wikidata":"https://www.wikidata.org/wiki/Q17125150","display_name":"Severity of illness","level":2,"score":0.3492000102996826},{"id":"https://openalex.org/C40438245","wikidata":"https://www.wikidata.org/wiki/Q130964","display_name":"Calorie","level":2,"score":0.32359999418258667},{"id":"https://openalex.org/C105922876","wikidata":"https://www.wikidata.org/wiki/Q1423981","display_name":"Airway","level":2,"score":0.3160000145435333},{"id":"https://openalex.org/C23131810","wikidata":"https://www.wikidata.org/wiki/Q818574","display_name":"Observational study","level":2,"score":0.31189998984336853},{"id":"https://openalex.org/C1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","level":1,"score":0.2890999913215637},{"id":"https://openalex.org/C55520419","wikidata":"https://www.wikidata.org/wiki/Q660995","display_name":"Vital capacity","level":5,"score":0.28839999437332153},{"id":"https://openalex.org/C198433322","wikidata":"https://www.wikidata.org/wiki/Q3910099","display_name":"Predictive value of tests","level":2,"score":0.2732999920845032},{"id":"https://openalex.org/C38180746","wikidata":"https://www.wikidata.org/wiki/Q1952580","display_name":"Multivariate analysis","level":2,"score":0.2678000032901764},{"id":"https://openalex.org/C2779159551","wikidata":"https://www.wikidata.org/wiki/Q1414874","display_name":"Comorbidity","level":2,"score":0.26460000872612},{"id":"https://openalex.org/C2778595754","wikidata":"https://www.wikidata.org/wiki/Q177171","display_name":"Frailty syndrome","level":3,"score":0.26330000162124634},{"id":"https://openalex.org/C167135981","wikidata":"https://www.wikidata.org/wiki/Q2146302","display_name":"Retrospective cohort study","level":2,"score":0.2605000138282776},{"id":"https://openalex.org/C534529494","wikidata":"https://www.wikidata.org/wiki/Q7891","display_name":"Respiratory system","level":2,"score":0.2558000087738037}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1183/23120541.01213-2025","doi":"https://doi.org/10.1183/23120541.01213-2025","is_oa":true,"landing_page_url":"https://doi.org/10.1183/23120541.01213-2025","pdf_url":null,"source":{"id":"https://openalex.org/S2738738902","display_name":"ERJ Open Research","issn_l":"2312-0541","issn":["2312-0541"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-b","doyens","jufo-1","ki-jl-1","norway-1","oarl","poland-40","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310317833","host_organization_name":"European Respiratory Society","host_organization_lineage":["https://openalex.org/P4310317833"],"host_organization_lineage_names":["European Respiratory Society"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ERJ Open Research","raw_type":"journal-article"},{"id":"pmh:oai:pubmedcentral.nih.gov:13244204","doi":null,"is_oa":true,"landing_page_url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC13244204/","pdf_url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC13244204/pdf/","source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ERJ Open Res","raw_type":"Text"},{"id":"pmid:42267375","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/42267375","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ERJ open research","raw_type":"Journal Article"},{"id":"pmh:oai:doaj.org/article:f9a2338a16114cd79a3aef73cc930cd4","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/f9a2338a16114cd79a3aef73cc930cd4","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ERJ Open Research, Vol 12, Iss 3 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1183/23120541.01213-2025","doi":"https://doi.org/10.1183/23120541.01213-2025","is_oa":true,"landing_page_url":"https://doi.org/10.1183/23120541.01213-2025","pdf_url":null,"source":{"id":"https://openalex.org/S2738738902","display_name":"ERJ Open Research","issn_l":"2312-0541","issn":["2312-0541"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-b","doyens","jufo-1","ki-jl-1","norway-1","oarl","poland-40","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310317833","host_organization_name":"European Respiratory Society","host_organization_lineage":["https://openalex.org/P4310317833"],"host_organization_lineage_names":["European Respiratory Society"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ERJ Open Research","raw_type":"journal-article"},"sustainable_development_goals":[{"score":1.0,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"study_designs":[],"awards":[{"id":"https://openalex.org/G7453312349","display_name":"Disruption of immune homeostasis in the pathogenesis of emphysema subtypes","funder_award_id":"22K08233","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320318706","display_name":"Japanese Respiratory Foundation","ror":"https://ror.org/053xsjf85"},{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4416746607.pdf","grobid_xml":"https://content.openalex.org/works/W4416746607.grobid-xml"},"referenced_works_count":39,"referenced_works":["https://openalex.org/W1905422379","https://openalex.org/W2006434809","https://openalex.org/W2020707691","https://openalex.org/W2026936228","https://openalex.org/W2093274439","https://openalex.org/W2125078269","https://openalex.org/W2130915993","https://openalex.org/W2135069164","https://openalex.org/W2142514031","https://openalex.org/W2153785016","https://openalex.org/W2160984653","https://openalex.org/W2161243447","https://openalex.org/W2164059021","https://openalex.org/W2166136965","https://openalex.org/W2259314742","https://openalex.org/W2549083214","https://openalex.org/W2576536258","https://openalex.org/W2611664228","https://openalex.org/W2889408911","https://openalex.org/W2895246789","https://openalex.org/W2944434778","https://openalex.org/W2964154745","https://openalex.org/W2979434443","https://openalex.org/W3091297068","https://openalex.org/W4283692340","https://openalex.org/W4283801823","https://openalex.org/W4294967892","https://openalex.org/W4313561578","https://openalex.org/W4317772501","https://openalex.org/W4322719510","https://openalex.org/W4376605180","https://openalex.org/W4383341583","https://openalex.org/W4384665259","https://openalex.org/W4387633911","https://openalex.org/W4388157582","https://openalex.org/W4400094762","https://openalex.org/W4401829905","https://openalex.org/W4404024047","https://openalex.org/W4409397934"],"related_works":["https://openalex.org/W2605834834","https://openalex.org/W2940587548","https://openalex.org/W4390465465","https://openalex.org/W3197211385","https://openalex.org/W4407117079","https://openalex.org/W4387382214","https://openalex.org/W4383998107","https://openalex.org/W4409084352","https://openalex.org/W4376631016","https://openalex.org/W4417227335"],"abstract_inverted_index":{"Background":[0],"Frailty":[1,75],"often":[2],"coexists":[3],"in":[4,116,160,223,236,245],"patients":[5,63,118,136,176,237,246],"with":[6,24,64,69,133,177,189,234,238,247],"COPD":[7,29,65,122,154],"regardless":[8],"of":[9,56,212],"disease":[10,144],"severity":[11,123],"and":[12,47,91,99,105,113,119,146,166,200,230],"may":[13,26],"serve":[14],"as":[15,94,96],"a":[16,57,70,148],"treatable":[17],"trait.":[18],"We":[19],"hypothesised":[20],"that":[21],"factors":[22,38,191,241],"associated":[23,188,233],"frailty":[25,104,173,178,186,222,235],"differ":[27,171],"by":[28,153,172],"severity.":[30],"This":[31,53],"study":[32,61],"aimed":[33],"to":[34,141,221],"comprehensively":[35],"explore":[36],"related":[37],"including":[39],"symptoms,":[40,88],"physical":[41,89],"activity,":[42],"dietary":[43,92],"behaviour,":[44,93],"serum":[45],"biomarkers":[46],"computed":[48],"tomography":[49],"(CT)":[50],"parameters.":[51,101],"Methods":[52],"cross-sectional":[54],"analysis":[55],"multicentre":[58],"prospective":[59],"cohort":[60],"included":[62],"aged":[66],"\u226550":[67],"years":[68],"smoking":[71],"history":[72],"\u226510":[73],"pack-years.":[74],"was":[76,187,219],"assessed":[77,109],"using":[78,85,110],"the":[79,121],"Kihon":[80],"checklist.":[81],"Data":[82],"were":[83,108,131,137,232,242],"collected":[84],"questionnaires":[86],"on":[87],"activity":[90],"well":[95],"blood":[97],"tests":[98],"CT":[100,201],"Associations":[102],"between":[103],"clinical":[106],"variables":[107],"multivariable":[111,184],"linear":[112],"logistic":[114],"regressions":[115],"all":[117],"within":[120],"subgroups.":[124],"Results":[125],"Among":[126],"225":[127],"patients,":[128],"45":[129],"(20%)":[130],"diagnosed":[132],"frailty.":[134],"These":[135],"older,":[138],"more":[139,180,243],"likely":[140],"have":[142],"cardiovascular":[143],"(CVD)":[145],"had":[147],"higher":[149],"neutrophil-to-lymphocyte":[150],"ratio.":[151],"Stratified":[152],"severity,":[155],"age,":[156],"forced":[157],"expiratory":[158],"volume":[159],"1":[161,164,214],"s":[162],"(FEV":[163],")":[165],"calorie":[167],"intake":[168],"did":[169],"not":[170,209],"status,":[174],"whereas":[175],"exhibited":[179],"severe":[181],"symptoms.":[182],"In":[183],"analysis,":[185],"social":[190],"(living":[192],"alone,":[193],"unemployment),":[194],"comorbidities":[195,229],"(CVD,":[196],"gastro-oesophageal":[197],"reflux":[198],"disease)":[199],"airway":[202],"parameters":[203],"(wall":[204],"area":[205],"percentage":[206],"(WA%)),":[207],"but":[208],"emphysema,":[210],"independent":[211],"FEV":[213],".":[215],"Furthermore,":[216],"living":[217],"alone":[218],"linked":[220],"mild":[224,248],"COPD.":[225,239,249],"Conclusion":[226],"Social":[227,240],"factors,":[228],"WA%":[231],"relevant":[244]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-11-12T12:28:57.059296","created_date":"2025-11-28T00:00:00"}
