{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,3]],"date-time":"2026-05-03T23:46:25Z","timestamp":1777851985281,"version":"3.51.4"},"reference-count":25,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2004,6,1]],"date-time":"2004-06-01T00:00:00Z","timestamp":1086048000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Health Informatics J"],"published-print":{"date-parts":[[2004,6]]},"abstract":"<jats:p>The purpose of the study was to test the completeness and accuracy of data from general practice clinical computer systems for research. A cross-sectional survey was used to measure: (1) accuracy and completeness of diagnostic data; (2) completeness and timeliness of clinical measurements; and (3) completeness of risk factor data. High levels of completeness were found for recorded blood pressure (over 80 per cent) and for body mass index (75 per cent), which differed between population groups. Depending on the case definition used, a sevenfold variation was found in the prevalence of depression; fivefold for peptic ulcer disease; threefold for hyperlipidaemia; and very little for hypothyroidism. These results illustrate how routine clinical data in selected high recording practices are now achieving reasonable levels of accuracy and completeness for a range of key variables, although there is substantial inter-practice variation. The data quality opens exciting possibilities for study design.<\/jats:p>","DOI":"10.1177\/1460458204042230","type":"journal-article","created":{"date-parts":[[2004,9,13]],"date-time":"2004-09-13T20:18:01Z","timestamp":1095106681000},"page":"91-109","source":"Crossref","is-referenced-by-count":20,"title":["Methodology for Assessing the Usefulness of General Practice Data for                 Research in One Research Network"],"prefix":"10.1177","volume":"10","author":[{"given":"J.","family":"Hippisley-Cox","sequence":"first","affiliation":[{"name":"Division of Primary Care, 13th Floor, Tower Building, University Park,\r                        Nottingham NG7 2RD, UK, Tel: 44 (0)115 8466915, Fax: 44 (0)115 8466904"}]},{"given":"V.","family":"Hammersley","sequence":"additional","affiliation":[]},{"given":"M.","family":"Pringle","sequence":"additional","affiliation":[]},{"given":"C.","family":"Coupland","sequence":"additional","affiliation":[]},{"given":"N.","family":"Crown","sequence":"additional","affiliation":[{"name":"Collingham Medical Centre"}]},{"given":"L.","family":"Wright","sequence":"additional","affiliation":[]}],"member":"179","published-online":{"date-parts":[[2004,6,1]]},"reference":[{"key":"atypb1","volume-title":"Information for Health: An Information Strategy for the Modern NHS 1998-2005","author":"Burns F.","year":"1998"},{"key":"atypb2","volume-title":"National Service Framework for Coronary Artery Disease: Modern Standards and Service Models","author":"Department of Health","year":"2000"},{"key":"atypb3","volume-title":"The NHS Plan: A Plan for Investment, a Plan for Reform","author":"Secretary of State for Health","year":"2000"},{"issue":"5","key":"atypb4","first-page":"342","volume":"4","author":"Hogan W R","journal-title":"JAMIA 1997"},{"key":"atypb5","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.302.6779.741"},{"key":"atypb6","doi-asserted-by":"publisher","DOI":"10.1093\/fampra\/12.2.221"},{"key":"atypb7","first-page":"223","volume":"294","author":"Mant D","journal-title":"BMJ 1987"},{"key":"atypb8","volume-title":"New Centuries, New Challenges","author":"Heads of the Departments of General Practice","year":"2002"},{"key":"atypb9","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.314.7083.796"},{"issue":"6667","key":"atypb10","first-page":"165","volume":"298","author":"Croft P","journal-title":"BMJ 1989"},{"key":"atypb11","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.313.7061.861"},{"key":"atypb12","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.322.7290.832"},{"key":"atypb13","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.323.7307.269"},{"key":"atypb14","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.323.7314.666"},{"key":"atypb15","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.321.7259.486"},{"key":"atypb16","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.325.7365.636"},{"key":"atypb17","first-page":"463","volume":"52","author":"Hammersley V","year":"2002","journal-title":"BJGP"},{"key":"atypb18","first-page":"3","volume":"1","author":"Hammersley V","year":"1998","journal-title":"Journal of Informatics in Primary Care"},{"key":"atypb19","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.308.6943.1552"},{"key":"atypb20","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.309.6947.102"},{"key":"atypb21","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.321.7260.548"},{"key":"atypb22","volume-title":"Key Health Statistics from General Practice 192","author":"Office of National Statistics","year":"1998"},{"key":"atypb23","doi-asserted-by":"publisher","DOI":"10.1093\/oxfordjournals.aje.a117592"},{"key":"atypb24","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.147.2.119"},{"key":"atypb25","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.305.6856.757"}],"container-title":["Health Informatics Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/1460458204042230","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/1460458204042230","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T22:28:37Z","timestamp":1777501717000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/1460458204042230"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2004,6]]},"references-count":25,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2004,6]]}},"alternative-id":["10.1177\/1460458204042230"],"URL":"https:\/\/doi.org\/10.1177\/1460458204042230","relation":{},"ISSN":["1460-4582","1741-2811"],"issn-type":[{"value":"1460-4582","type":"print"},{"value":"1741-2811","type":"electronic"}],"subject":[],"published":{"date-parts":[[2004,6]]}}}