{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T20:00:15Z","timestamp":1777579215959,"version":"3.51.4"},"reference-count":5,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2006,11,1]],"date-time":"2006-11-01T00:00:00Z","timestamp":1162339200000},"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":["European Journal of Ophthalmology"],"published-print":{"date-parts":[[2006,11]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To determine the prevalence of retinitis pigmentosa in the elderly Chinese population.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>The Beijing Eye Study is a population-based, cross-sectional cohort study and included 4439 subjects out of 5324 subjects invited to participate (response rate 83.4%) with an age of 40+ years. Readable fundus photographs were available for 4027 (90.7%) subjects. Diagnostic criteria for retinitis pigmentosa were visual field defects on frequency doubling perimetry, typical ophthalmoscopic abnormalities such as retinal pigment deposits, retinal arteriole attenuation, and pigment epithelial atrophy, and no other reason for perimetric defects and fundus abnormalities.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Retinitis pigmentosa was diagnosed in four subjects (all men). Its prevalence was 0.099\u00b13.15% (95% CI: 0.00, 0.2).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Retinitis pigmentosa with typical fundus appearance and functional loss may be present in about 1 out of 1000 elderly Chinese in Northern China. Calculated for the whole population in China, the figure would be 1.3 million patients with retinitis pigmentosa.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/112067210601600614","type":"journal-article","created":{"date-parts":[[2018,1,24]],"date-time":"2018-01-24T11:12:13Z","timestamp":1516792333000},"page":"865-866","source":"Crossref","is-referenced-by-count":48,"title":["Prevalence of Retinitis Pigmentosa in Urban and Rural Adult Chinese: The Beijing Eye Study"],"prefix":"10.1177","volume":"16","author":[{"given":"L.","family":"Xu","sequence":"first","affiliation":[{"name":"Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital University of Medical Science - China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L.","family":"Hu","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, The 306 Hospital of PLA, Beijing - China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.","family":"Ma","sequence":"additional","affiliation":[{"name":"Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital University of Medical Science - China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"Li","sequence":"additional","affiliation":[{"name":"Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital University of Medical Science - China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.B.","family":"Jonas","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Faculty of Clinical Medicine Mannheim, University of Heidelberg, Mannheim - Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2006,11,1]]},"reference":[{"key":"bibr1-112067210601600614","doi-asserted-by":"publisher","DOI":"10.1046\/j.1395-3907.2002.00001.x"},{"key":"bibr2-112067210601600614","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9394(84)90636-6"},{"key":"bibr3-112067210601600614","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.21.6.417"},{"key":"bibr4-112067210601600614","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.24.10.584"},{"key":"bibr5-112067210601600614","doi-asserted-by":"publisher","DOI":"10.1016\/j.ophtha.2005.05.015"}],"container-title":["European Journal of Ophthalmology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/112067210601600614","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/112067210601600614","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T19:36:58Z","timestamp":1777405018000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/112067210601600614"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,11]]},"references-count":5,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2006,11]]}},"alternative-id":["10.1177\/112067210601600614"],"URL":"https:\/\/doi.org\/10.1177\/112067210601600614","relation":{},"ISSN":["1120-6721","1724-6016"],"issn-type":[{"value":"1120-6721","type":"print"},{"value":"1724-6016","type":"electronic"}],"subject":[],"published":{"date-parts":[[2006,11]]}}}