{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T22:17:20Z","timestamp":1792880240089,"version":"4.5.0"},"reference-count":13,"publisher":"The Journal of Rheumatology","issue":"9","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Rheumatol"],"published-print":{"date-parts":[[2009,9]]},"abstract":"<jats:sec><jats:title>Objective.<\/jats:title><jats:p>To investigate the prevalence of nephrolithiasis in gouty patients by computed tomography (CT) imaging and to compare it with the \u201cprevalence\u201d of urolithiasis calculated from histories of urinary tract calculus.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods.<\/jats:title><jats:p>The kidneys of 383 male patients with primary gout were examined using an unenhanced 2-row helical CT detector, imaging at 2 mm collimation and a helical pitch of 3. The urolithiasis history of the 383 patients was investigated by inquiry. Patients\u2019 ages, body mass index, and laboratory data from a 1-hour clearance test were determined.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results.<\/jats:title><jats:p>CT scans confirmed nephrolithiasis in 103 (26.9%, 95% confidence interval 22.5%\u201331.6%) of the 383 gouty patients, and history of urinary calculus was positive in 65 (17.0%, 95% confidence interval 13.4%\u201321.1%) of the 383. However, 64 (62%) of the 103 stone-formers identified by CT had no history of urolithiasis. There was a significant difference between the ages of the 103 stone-formers identified by CT and the 65 stone-formers identified from the history.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion.<\/jats:title><jats:p>The prevalence of nephrolithiasis obtained using CT was 26.9% in the 383 patients with primary gout. Our results imply that we cannot determine an accurate prevalence of urolithiasis from a patient\u2019s history. Most of the \u201cprevalence\u201d reported in the past may not correspond to a statistically justifiable one, but instead to the \u201ccumulative incidence\u201d during the contraction period of gout. Thus, the prevalence of nephrolithiasis confirmed by a cross-sectional method and the \u201cprevalence\u201d of urolithiasis calculated from patients\u2019 calculus histories should be clearly distinguished.<\/jats:p><\/jats:sec>","DOI":"10.3899\/jrheum.081128","type":"journal-article","created":{"date-parts":[[2009,7,16]],"date-time":"2009-07-16T01:56:06Z","timestamp":1247709366000},"page":"1958-1962","source":"Crossref","is-referenced-by-count":20,"title":["The Prevalence of Nephrolithiasis in Patients with Primary Gout: A Cross-sectional Study Using Helical Computed Tomography"],"prefix":"10.3899","volume":"36","author":[{"given":"TORU","family":"SHIMIZU","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"HIROSHI","family":"HORI","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2262","published-online":{"date-parts":[[2009,7,15]]},"reference":[{"key":"2018112909211569000_36.9.1958.1","doi-asserted-by":"crossref","first-page":"789","DOI":"10.1148\/radiology.194.3.7862980","article-title":"Acute flank pain: comparison of non-contrast-enhanced CT and intravenous urography","volume":"194","author":"Smith","year":"1995","journal-title":"Radiology"},{"key":"2018112909211569000_36.9.1958.2","doi-asserted-by":"publisher","DOI":"10.2214\/ajr.175.2.1750329"},{"key":"2018112909211569000_36.9.1958.3","doi-asserted-by":"publisher","DOI":"10.1007\/s003300100821"},{"key":"2018112909211569000_36.9.1958.4","doi-asserted-by":"crossref","first-page":"530","DOI":"10.1148\/radiol.2352040448","article-title":"Unenhanced multi-detector row CT in patients suspected of having urinary stone disease: Effect of section width on diagnosis","volume":"235","author":"Memarsadeghi","year":"2005","journal-title":"Radiology"},{"key":"2018112909211569000_36.9.1958.5","doi-asserted-by":"publisher","DOI":"10.1002\/art.1780200320"},{"key":"2018112909211569000_36.9.1958.6","doi-asserted-by":"crossref","first-page":"137","DOI":"10.6032\/gnam1999.26.2_137","article-title":"Studies on renal calculi complicating primary gout by non-enhanced helical CT [Japanese]","volume":"26","author":"Shimizu","year":"2002","journal-title":"Gout Nucleic Acid Metabolism"},{"key":"2018112909211569000_36.9.1958.7","doi-asserted-by":"publisher","DOI":"10.1093\/geronj\/31.2.155"},{"key":"2018112909211569000_36.9.1958.8","doi-asserted-by":"crossref","first-page":"1133","DOI":"10.7326\/0003-4819-67-6-1133","article-title":"Uric acid nephrolithiasis in gout. Predisposing factors","volume":"67","author":"Yu","year":"1967","journal-title":"Ann Intern Med"},{"key":"2018112909211569000_36.9.1958.9","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9343(79)90076-7"},{"key":"2018112909211569000_36.9.1958.10","doi-asserted-by":"publisher","DOI":"10.1053\/ajkd.2002.33911"},{"key":"2018112909211569000_36.9.1958.11","first-page":"2189","article-title":"Prevalence and risk factors for urolithiasis in primary gout: is reappraisal needed?","volume":"32","author":"Alvarez-Nemegyei","year":"2005","journal-title":"J Rheumatol"},{"key":"2018112909211569000_36.9.1958.12","doi-asserted-by":"publisher","DOI":"10.1001\/jama.1956.02970150005002"},{"key":"2018112909211569000_36.9.1958.13","doi-asserted-by":"publisher","DOI":"10.1007\/BF03041281"}],"container-title":["The Journal of Rheumatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.3899\/jrheum.081128","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2018,11,29]],"date-time":"2018-11-29T17:28:45Z","timestamp":1543512525000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.jrheum.org\/lookup\/doi\/10.3899\/jrheum.081128"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,7,15]]},"references-count":13,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2009,9,8]]},"published-print":{"date-parts":[[2009,9]]}},"alternative-id":["10.3899\/jrheum.081128"],"URL":"https:\/\/doi.org\/10.3899\/jrheum.081128","relation":{},"ISSN":["0315-162X","1499-2752"],"issn-type":[{"value":"0315-162X","type":"print"},{"value":"1499-2752","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,7,15]]}}}