{"id":"https://openalex.org/W2802951189","doi":"https://doi.org/10.1016/j.ijmedinf.2018.05.002","title":"Regional differences in electronic medical record adoption in Japan: A nationwide longitudinal ecological study","display_name":"Regional differences in electronic medical record adoption in Japan: A nationwide longitudinal ecological study","publication_year":2018,"publication_date":"2018-05-03","ids":{"openalex":"https://openalex.org/W2802951189","doi":"https://doi.org/10.1016/j.ijmedinf.2018.05.002","mag":"2802951189","pmid":"https://pubmed.ncbi.nlm.nih.gov/29779713"},"language":"en","primary_location":{"id":"doi:10.1016/j.ijmedinf.2018.05.002","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.ijmedinf.2018.05.002","pdf_url":null,"source":{"id":"https://openalex.org/S53142634","display_name":"International Journal of Medical Informatics","issn_l":"1386-5056","issn":["1386-5056","1872-8243"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Medical Informatics","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5027959389","display_name":"Hideaki Kawaguchi","orcid":"https://orcid.org/0000-0001-5772-8295"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Hideaki Kawaguchi","raw_affiliation_strings":["Department of Biomedical Informatics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan. Electronic address: hikawaguchi-tky@umin.ac.jp","Department of Biomedical Informatics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biomedical Informatics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan. Electronic address: hikawaguchi-tky@umin.ac.jp","institution_ids":["https://openalex.org/I74801974"]},{"raw_affiliation_string":"Department of Biomedical Informatics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014824386","display_name":"Soichi Koike","orcid":"https://orcid.org/0000-0002-6516-7333"},"institutions":[{"id":"https://openalex.org/I146500386","display_name":"Jichi Medical University","ror":"https://ror.org/010hz0g26","country_code":"JP","type":"education","lineage":["https://openalex.org/I146500386"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Soichi Koike","raw_affiliation_strings":["Division of Health Policy and Management, Center for Community Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan. Electronic address: koikes@jichi.ac.jp","Division of Health Policy and Management, Center for Community Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Health Policy and Management, Center for Community Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan. Electronic address: koikes@jichi.ac.jp","institution_ids":["https://openalex.org/I146500386"]},{"raw_affiliation_string":"Division of Health Policy and Management, Center for Community Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan","institution_ids":["https://openalex.org/I146500386"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5052636056","display_name":"Kazuhiko Ohe","orcid":"https://orcid.org/0000-0002-4296-9536"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kazuhiko Ohe","raw_affiliation_strings":["Department of Biomedical Informatics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan. Electronic address: ohe-office@adm.h.u-tokyo.ac.jp","Department of Biomedical Informatics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biomedical Informatics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan. Electronic address: ohe-office@adm.h.u-tokyo.ac.jp","institution_ids":["https://openalex.org/I74801974"]},{"raw_affiliation_string":"Department of Biomedical Informatics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan","institution_ids":["https://openalex.org/I74801974"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5027959389"],"corresponding_institution_ids":["https://openalex.org/I74801974"],"apc_list":{"value":3210,"currency":"USD","value_usd":3210},"apc_paid":null,"fwci":3.7414,"has_fulltext":false,"cited_by_count":17,"citation_normalized_percentile":{"value":0.93338292,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"115","issue":null,"first_page":"114","last_page":"119"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10350","display_name":"Electronic Health Records Systems","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/3605","display_name":"Health Information Management"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10350","display_name":"Electronic Health Records Systems","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/3605","display_name":"Health Information Management"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11446","display_name":"Mobile Health and mHealth Applications","score":0.982699990272522,"subfield":{"id":"https://openalex.org/subfields/3600","display_name":"General Health Professions"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11710","display_name":"Biomedical Text Mining and Ontologies","score":0.9713000059127808,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/ecological-study","display_name":"Ecological study","score":0.5090117454528809},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.45343509316444397},{"id":"https://openalex.org/keywords/electronic-medical-record","display_name":"Electronic medical record","score":0.43907713890075684},{"id":"https://openalex.org/keywords/medical-record","display_name":"Medical record","score":0.4133203625679016},{"id":"https://openalex.org/keywords/ecology","display_name":"Ecology","score":0.4030596613883972},{"id":"https://openalex.org/keywords/environmental-resource-management","display_name":"Environmental resource management","score":0.39265382289886475},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.36735183000564575},{"id":"https://openalex.org/keywords/environmental-health","display_name":"Environmental health","score":0.29470497369766235},{"id":"https://openalex.org/keywords/family-medicine","display_name":"Family medicine","score":0.26842743158340454},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.14551758766174316},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.14284709095954895},{"id":"https://openalex.org/keywords/population","display_name":"Population","score":0.11030086874961853}],"concepts":[{"id":"https://openalex.org/C25511272","wikidata":"https://www.wikidata.org/wiki/Q295136","display_name":"Ecological study","level":3,"score":0.5090117454528809},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.45343509316444397},{"id":"https://openalex.org/C3018060332","wikidata":"https://www.wikidata.org/wiki/Q10871684","display_name":"Electronic medical record","level":2,"score":0.43907713890075684},{"id":"https://openalex.org/C195910791","wikidata":"https://www.wikidata.org/wiki/Q1324077","display_name":"Medical record","level":2,"score":0.4133203625679016},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.4030596613883972},{"id":"https://openalex.org/C107826830","wikidata":"https://www.wikidata.org/wiki/Q929380","display_name":"Environmental resource management","level":1,"score":0.39265382289886475},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.36735183000564575},{"id":"https://openalex.org/C99454951","wikidata":"https://www.wikidata.org/wiki/Q932068","display_name":"Environmental health","level":1,"score":0.29470497369766235},{"id":"https://openalex.org/C512399662","wikidata":"https://www.wikidata.org/wiki/Q3505712","display_name":"Family medicine","level":1,"score":0.26842743158340454},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.14551758766174316},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.14284709095954895},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.11030086874961853},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D004059","descriptor_name":"Diffusion of Innovation","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D004059","descriptor_name":"Diffusion of Innovation","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D004059","descriptor_name":"Diffusion of Innovation","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D006268","descriptor_name":"Health Facilities","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006268","descriptor_name":"Health Facilities","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006268","descriptor_name":"Health Facilities","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":"D006801","descriptor_name":"Humans","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":"D007564","descriptor_name":"Japan","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007564","descriptor_name":"Japan","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007564","descriptor_name":"Japan","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008137","descriptor_name":"Longitudinal Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008137","descriptor_name":"Longitudinal Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008137","descriptor_name":"Longitudinal Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010820","descriptor_name":"Physicians","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010820","descriptor_name":"Physicians","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010820","descriptor_name":"Physicians","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016304","descriptor_name":"Hospitals, Private","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016304","descriptor_name":"Hospitals, Private","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016304","descriptor_name":"Hospitals, Private","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D057286","descriptor_name":"Electronic Health Records","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D057286","descriptor_name":"Electronic Health Records","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D057286","descriptor_name":"Electronic Health Records","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":2,"locations":[{"id":"doi:10.1016/j.ijmedinf.2018.05.002","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.ijmedinf.2018.05.002","pdf_url":null,"source":{"id":"https://openalex.org/S53142634","display_name":"International Journal of Medical Informatics","issn_l":"1386-5056","issn":["1386-5056","1872-8243"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Medical Informatics","raw_type":"journal-article"},{"id":"pmid:29779713","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/29779713","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,"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":"International journal of medical informatics","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/1","score":0.46000000834465027,"display_name":"No poverty"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320312288","display_name":"Asahi Kasei Pharma Corporation","ror":"https://ror.org/018wp0236"},{"id":"https://openalex.org/F4320321945","display_name":"Ministry of Health, Labour and Welfare","ror":"https://ror.org/03mwa7s65"},{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":33,"referenced_works":["https://openalex.org/W641203855","https://openalex.org/W1884882492","https://openalex.org/W1969182917","https://openalex.org/W1976043039","https://openalex.org/W2026261408","https://openalex.org/W2028226037","https://openalex.org/W2028993630","https://openalex.org/W2033425867","https://openalex.org/W2059170148","https://openalex.org/W2069593611","https://openalex.org/W2077361879","https://openalex.org/W2079175867","https://openalex.org/W2082168677","https://openalex.org/W2104026855","https://openalex.org/W2108167590","https://openalex.org/W2113832486","https://openalex.org/W2119791143","https://openalex.org/W2150217040","https://openalex.org/W2152379391","https://openalex.org/W2157814042","https://openalex.org/W2169921538","https://openalex.org/W2262334946","https://openalex.org/W2276466850","https://openalex.org/W2283725528","https://openalex.org/W2418740288","https://openalex.org/W2748270673","https://openalex.org/W2916491205","https://openalex.org/W3122858766","https://openalex.org/W4293256919","https://openalex.org/W6636680135","https://openalex.org/W6684612271","https://openalex.org/W6696544798","https://openalex.org/W6717327152"],"related_works":["https://openalex.org/W2091636677","https://openalex.org/W2381274092","https://openalex.org/W2385306558","https://openalex.org/W2371025015","https://openalex.org/W4205272636","https://openalex.org/W2094707859","https://openalex.org/W2368805154","https://openalex.org/W2390540328","https://openalex.org/W2348999072","https://openalex.org/W2941400566"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":1}],"updated_date":"2026-06-25T06:16:34.145877","created_date":"2018-05-17T00:00:00"}