{"id":"https://openalex.org/W3022401142","doi":"https://doi.org/10.1002/1348-9585.12125","title":"Association between extremely long working hours and musculoskeletal symptoms: A nationwide survey of medical residents in South Korea","display_name":"Association between extremely long working hours and musculoskeletal symptoms: A nationwide survey of medical residents in South Korea","publication_year":2020,"publication_date":"2020-01-01","ids":{"openalex":"https://openalex.org/W3022401142","doi":"https://doi.org/10.1002/1348-9585.12125","mag":"3022401142","pmid":"https://pubmed.ncbi.nlm.nih.gov/32515892","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/7193152"},"language":"en","primary_location":{"id":"doi:10.1002/1348-9585.12125","doi":"https://doi.org/10.1002/1348-9585.12125","is_oa":true,"landing_page_url":"https://doi.org/10.1002/1348-9585.12125","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/1348-9585.12125","source":{"id":"https://openalex.org/S27728379","display_name":"Journal of Occupational Health","issn_l":"1341-9145","issn":["1341-9145","1348-9585"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-40","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Occupational Health","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/1348-9585.12125","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5003902844","display_name":"Hyoju Sung","orcid":"https://orcid.org/0000-0001-9863-3540","observed_orcids":["https://orcid.org/0000-0001-9863-3540"]},"institutions":[{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hyoju Sung","raw_affiliation_strings":["Department of Public Health Sciences, Graduate School of Korea University , Seoul, Republic of Korea"],"raw_orcid":"https://orcid.org/0000-0001-9863-3540","affiliations":[{"raw_affiliation_string":"Department of Public Health Sciences, Graduate School of Korea University , Seoul, Republic of Korea","institution_ids":["https://openalex.org/I197347611"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101714000","display_name":"Ja Young Kim","orcid":"https://orcid.org/0000-0002-8949-1912","observed_orcids":["https://orcid.org/0000-0002-8949-1912"]},"institutions":[{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Ja Young Kim","raw_affiliation_strings":["Department of Public Health Sciences, Graduate School of Korea University , Seoul, Republic of Korea","Gyeonggi Public Health Policy Institute , Seongnam-si, Republic of Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Public Health Sciences, Graduate School of Korea University , Seoul, Republic of Korea","institution_ids":["https://openalex.org/I197347611"]},{"raw_affiliation_string":"Gyeonggi Public Health Policy Institute , Seongnam-si, Republic of Korea","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100451539","display_name":"Ji\u2010Hwan Kim","orcid":"https://orcid.org/0000-0001-9424-5962","observed_orcids":["https://orcid.org/0000-0001-9424-5962"]},"institutions":[{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Ji-Hwan Kim","raw_affiliation_strings":["Department of Public Health Sciences, Graduate School of Korea University , Seoul, Republic of Korea","Gyeonggi Public Health Policy Institute , Seongnam-si, Republic of Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Public Health Sciences, Graduate School of Korea University , Seoul, Republic of Korea","institution_ids":["https://openalex.org/I197347611"]},{"raw_affiliation_string":"Gyeonggi Public Health Policy Institute , Seongnam-si, Republic of Korea","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018175118","display_name":"Laura Punnett","orcid":"https://orcid.org/0000-0001-9270-9946","observed_orcids":["https://orcid.org/0000-0001-9270-9946"]},"institutions":[{"id":"https://openalex.org/I133738476","display_name":"University of Massachusetts Lowell","ror":"https://ror.org/03hamhx47","country_code":"US","type":"education","lineage":["https://openalex.org/I133738476"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Laura Punnett","raw_affiliation_strings":["Francis College of Engineering University of Massachusetts Lowell , Lowell, MA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Francis College of Engineering University of Massachusetts Lowell , Lowell, MA, USA","institution_ids":["https://openalex.org/I133738476"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100715336","display_name":"Hyemin Lee","orcid":"https://orcid.org/0000-0001-9257-6434","observed_orcids":["https://orcid.org/0000-0001-9257-6434"]},"institutions":[{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hyemin Lee","raw_affiliation_strings":["Department of Public Health Sciences, Graduate School of Korea University , Seoul, Republic of Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Public Health Sciences, Graduate School of Korea University , Seoul, Republic of Korea","institution_ids":["https://openalex.org/I197347611"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5053069420","display_name":"Seung\u2010Sup Kim","orcid":"https://orcid.org/0000-0003-1830-0282","observed_orcids":["https://orcid.org/0000-0003-1830-0282","https://orcid.org/0009-0008-3426-7850"]},"institutions":[{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]},{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR","US"],"is_corresponding":true,"raw_author_name":"Seung-Sup Kim","raw_affiliation_strings":["Department of Public Health Sciences, Graduate School of Korea University , Seoul, Republic of Korea","Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health , Boston, MA, USA"],"raw_orcid":"https://orcid.org/0000-0003-1830-0282","affiliations":[{"raw_affiliation_string":"Department of Public Health Sciences, Graduate School of Korea University , Seoul, Republic of Korea","institution_ids":["https://openalex.org/I197347611"]},{"raw_affiliation_string":"Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health , Boston, MA, USA","institution_ids":["https://openalex.org/I136199984"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5053069420"],"corresponding_institution_ids":["https://openalex.org/I136199984","https://openalex.org/I197347611"],"apc_list":{"value":800,"currency":"USD","value_usd":800},"apc_paid":{"value":800,"currency":"USD","value_usd":800},"fwci":1.0918,"has_fulltext":true,"cited_by_count":8,"citation_normalized_percentile":{"value":0.79477263,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"62","issue":"1","first_page":"e12125","last_page":"e12125"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12006","display_name":"Ergonomics and Musculoskeletal Disorders","score":0.5067999958992004,"subfield":{"id":"https://openalex.org/subfields/3207","display_name":"Social Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T12006","display_name":"Ergonomics and Musculoskeletal Disorders","score":0.5067999958992004,"subfield":{"id":"https://openalex.org/subfields/3207","display_name":"Social Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12174","display_name":"Hospital Admissions and Outcomes","score":0.24609999358654022,"subfield":{"id":"https://openalex.org/subfields/2711","display_name":"Emergency 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/T11373","display_name":"Sleep and Work-Related Fatigue","score":0.1485999971628189,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/musculoskeletal-pain","display_name":"musculoskeletal pain","score":0.9670000076293945},{"id":"https://openalex.org/keywords/medical-residents","display_name":"medical residents","score":0.9350000023841858},{"id":"https://openalex.org/keywords/upper-limb-pain","display_name":"upper limb pain","score":0.9710000157356262},{"id":"https://openalex.org/keywords/low-back-pain","display_name":"low back pain","score":0.9980000257492065},{"id":"https://openalex.org/keywords/lower-limb-pain","display_name":"lower limb pain","score":0.972000002861023},{"id":"https://openalex.org/keywords/work-related-pain","display_name":"work-related pain","score":0.5440000295639038},{"id":"https://openalex.org/keywords/south-korea","display_name":"South Korea","score":0.5009999871253967}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.8173859715461731},{"id":"https://openalex.org/C2993471631","wikidata":"https://www.wikidata.org/wiki/Q4116663","display_name":"Musculoskeletal pain","level":2,"score":0.625680685043335},{"id":"https://openalex.org/C1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","level":1,"score":0.5727596282958984},{"id":"https://openalex.org/C3018898988","wikidata":"https://www.wikidata.org/wiki/Q260732","display_name":"Working hours","level":2,"score":0.5596922039985657},{"id":"https://openalex.org/C142052008","wikidata":"https://www.wikidata.org/wiki/Q954027","display_name":"Cross-sectional study","level":2,"score":0.483296662569046},{"id":"https://openalex.org/C2776501849","wikidata":"https://www.wikidata.org/wiki/Q5781808","display_name":"Back pain","level":3,"score":0.42826399207115173},{"id":"https://openalex.org/C151956035","wikidata":"https://www.wikidata.org/wiki/Q1132755","display_name":"Logistic regression","level":2,"score":0.4261888861656189},{"id":"https://openalex.org/C142853389","wikidata":"https://www.wikidata.org/wiki/Q744778","display_name":"Association (psychology)","level":2,"score":0.41240814328193665},{"id":"https://openalex.org/C149923435","wikidata":"https://www.wikidata.org/wiki/Q37732","display_name":"Demography","level":1,"score":0.34021908044815063},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.17673876881599426},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.11803591251373291},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.09951093792915344},{"id":"https://openalex.org/C542102704","wikidata":"https://www.wikidata.org/wiki/Q183257","display_name":"Psychotherapist","level":1,"score":0.0},{"id":"https://openalex.org/C145236788","wikidata":"https://www.wikidata.org/wiki/Q28161","display_name":"Labour economics","level":1,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003430","descriptor_name":"Cross-Sectional Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007396","descriptor_name":"Internship and Residency","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010561","descriptor_name":"Personnel Staffing and Scheduling","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D011795","descriptor_name":"Surveys and Questionnaires","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D056910","descriptor_name":"Republic of Korea","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D059352","descriptor_name":"Musculoskeletal Pain","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":true}],"locations_count":3,"locations":[{"id":"doi:10.1002/1348-9585.12125","doi":"https://doi.org/10.1002/1348-9585.12125","is_oa":true,"landing_page_url":"https://doi.org/10.1002/1348-9585.12125","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/1348-9585.12125","source":{"id":"https://openalex.org/S27728379","display_name":"Journal of Occupational Health","issn_l":"1341-9145","issn":["1341-9145","1348-9585"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-40","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Occupational Health","raw_type":"journal-article"},{"id":"pmh:oai:pubmedcentral.nih.gov:7193152","doi":null,"is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7193152","pdf_url":null,"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","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"J Occup Health","raw_type":"Text"},{"id":"pmid:32515892","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/32515892","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":"Journal of occupational health","raw_type":"Journal Article"}],"best_oa_location":{"id":"doi:10.1002/1348-9585.12125","doi":"https://doi.org/10.1002/1348-9585.12125","is_oa":true,"landing_page_url":"https://doi.org/10.1002/1348-9585.12125","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/1348-9585.12125","source":{"id":"https://openalex.org/S27728379","display_name":"Journal of Occupational Health","issn_l":"1341-9145","issn":["1341-9145","1348-9585"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-40","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Occupational Health","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Good health and well-being","score":1.0,"id":"https://metadata.un.org/sdg/3"},{"display_name":"Decent work and economic growth","score":0.9211000204086304,"id":"https://metadata.un.org/sdg/8"}],"sustainable_development_goals_aurora":[],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[{"id":"https://openalex.org/G1020359070","display_name":null,"funder_award_id":"NRF-2018S1A5B6075594","funder_id":"https://openalex.org/F4320322120","funder_display_name":"National Research Foundation of Korea"},{"id":"https://openalex.org/G3134680938","display_name":null,"funder_award_id":"K1916921","funder_id":"https://openalex.org/F4320321373","funder_display_name":"Korea University"},{"id":"https://openalex.org/G3836316230","display_name":null,"funder_award_id":"NRF-2018S1A5B6075594","funder_id":"https://openalex.org/F4320321373","funder_display_name":"Korea University"},{"id":"https://openalex.org/G4366961652","display_name":null,"funder_award_id":"NRF-2018S1A5B6075594","funder_id":"https://openalex.org/F4320320671","funder_display_name":"National Research Foundation"}],"funders":[{"id":"https://openalex.org/F4320320671","display_name":"National Research Foundation","ror":"https://ror.org/05s0g1g46"},{"id":"https://openalex.org/F4320321373","display_name":"Korea University","ror":"https://ror.org/047dqcg40"},{"id":"https://openalex.org/F4320322120","display_name":"National Research Foundation of Korea","ror":"https://ror.org/013aysd81"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3022401142.pdf","grobid_xml":"https://content.openalex.org/works/W3022401142.grobid-xml"},"referenced_works_count":30,"referenced_works":["https://openalex.org/W21944932","https://openalex.org/W1968026351","https://openalex.org/W1974603619","https://openalex.org/W1983960803","https://openalex.org/W1989012023","https://openalex.org/W1992707234","https://openalex.org/W2019639453","https://openalex.org/W2031604093","https://openalex.org/W2031609437","https://openalex.org/W2033326082","https://openalex.org/W2035139960","https://openalex.org/W2037327261","https://openalex.org/W2052813550","https://openalex.org/W2061513536","https://openalex.org/W2089488209","https://openalex.org/W2107775698","https://openalex.org/W2111497168","https://openalex.org/W2111942718","https://openalex.org/W2124403472","https://openalex.org/W2164573017","https://openalex.org/W2166952911","https://openalex.org/W2333654393","https://openalex.org/W2503048196","https://openalex.org/W2735504895","https://openalex.org/W2747761212","https://openalex.org/W2779242671","https://openalex.org/W2972583124","https://openalex.org/W3022401142","https://openalex.org/W4233682157","https://openalex.org/W4256223142"],"related_works":["https://openalex.org/W2902515458","https://openalex.org/W7169887525","https://openalex.org/W4385685187","https://openalex.org/W4210613319","https://openalex.org/W4407684996","https://openalex.org/W4248325187","https://openalex.org/W4280639987","https://openalex.org/W1506504790","https://openalex.org/W2921958454","https://openalex.org/W2939961540"],"abstract_inverted_index":{"OBJECTIVES:":[0],"It":[1],"has":[2],"been":[3],"reported":[4],"that":[5,118,196],"South":[6,47,132],"Korea":[7],"ranked":[8],"as":[9,55],"one":[10],"of":[11,42,123,188],"the":[12,23,74,102,119,136,186],"longest-working":[13],"nations":[14],"among":[15,32,214],"OECD":[16],"countries.":[17],"This":[18,193],"study":[19,194],"sought":[20],"to":[21,100,135,151],"examine":[22,101],"association":[24,103,182],"between":[25,104],"long":[26,105,198],"working":[27,106,121,139,143,199],"hours":[28,50,107,122,128,145,200],"and":[29,60,69,90,108,206],"musculoskeletal":[30,109],"pain":[31,85,91,155,168,209],"Korean":[33,215],"medical":[34,44,124,137,216],"residents.":[35,217],"METHODS:":[36],"We":[37,116],"analyzed":[38],"a":[39],"cross-sectional":[40],"survey":[41],"1,077":[43],"residents":[45,138],"in":[46,131,185],"Korea.":[48,133],"Working":[49],"per":[51,129,146],"week":[52,130,147],"were":[53,78,148],"categorized":[54,79],"follows:":[56],"<60,":[57],"60-79,":[58],"80-99,":[59],"\u2265100.":[61],"Musculoskeletal":[62],"pains":[63,110],"(ie,":[64],"upper":[65,153,204],"limb,":[66,68],"lower":[67,189],"low":[70,166,207],"back":[71,167,208],"pain)":[72],"over":[73],"past":[75],"3":[76],"months":[77],"into":[80],"three":[81],"groups:":[82],"no":[83,179],"pain,":[84],"without":[86],"interfering":[87,92,162,175,210],"with":[88,93,163,176,203,211],"work,":[89,177],"work.":[94],"Multinomial":[95],"logistic":[96],"regression":[97],"was":[98,126,183],"used":[99],"after":[111],"adjusting":[112],"for":[113],"covariates.":[114],"RESULTS:":[115],"found":[117],"average":[120],"resident":[125],"85.6":[127],"Compared":[134],"<60":[140],"hours,":[141],"those":[142],"\u2265100":[144],"more":[149],"likely":[150],"have":[152],"limb":[154,190,205],"(PR:":[156,169],"1.77,":[157],"95%":[158,171],"CI:":[159,172],"1.37,":[160],"2.30)":[161],"work":[164,213],"or":[165],"2.15,":[170],"1.51,":[173],"3.06)":[174],"whereas":[178],"statistically":[180],"significant":[181],"observed":[184],"analysis":[187],"pain.":[191],"CONCLUSIONS:":[192],"suggests":[195],"extremely":[197],"are":[201],"associated":[202],"their":[212]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2020-05-13T00:00:00"}