{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T11:01:21Z","timestamp":1760266881333,"version":"3.33.0"},"reference-count":30,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[1991,2,1]],"date-time":"1991-02-01T00:00:00Z","timestamp":665366400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[1991,2,1]],"date-time":"1991-02-01T00:00:00Z","timestamp":665366400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["ard.eular.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Annals of the Rheumatic Diseases"],"published-print":{"date-parts":[[1991,2]]},"DOI":"10.1136\/ard.50.2.72","type":"journal-article","created":{"date-parts":[[2008,7,28]],"date-time":"2008-07-28T23:49:46Z","timestamp":1217288986000},"page":"72-74","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":26,"title":["Oral contraception and its possible protection against rheumatoid arthritis."],"prefix":"10.1016","volume":"50","author":[{"given":"J.M","family":"Hazes","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D","family":"van Zeben","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"ref_1","article-title":"a special workshop on female sex hormones and RA was held in an attempt to reach a consensus among all the groups with a past or current interest in the field, the proceedings of which have been published.7 17-19 22 24 Two meta-analyses were presented, in which all reported relative risks of RA for ever users of the oral contraceptive pill were pooled. Each one reported a slight protective effect, with pooled estimates of relative risks of 0-73 (95% confidence interval (CI) 0-61 to 0-85)'7 and 0 79 (95% CI 0-58 to 108).'8 The preliminary confirmation of a protective effect of oral contraceptive use on the onset of RA by a methodological impressive study being conducted in Seattle7 supported the conclusion of the workshop that oral contraceptives probably have some association","author":"In","year":"1989","unstructured":"In March 1989 a special workshop on female sex hormones and RA was held in an attempt to reach a consensus among all the groups with a past or current interest in the field, the proceedings of which have been published.7 17-19 22 24 Two meta-analyses were presented, in which all reported relative risks of RA for ever users of the oral contraceptive pill were pooled. Each one reported a slight protective effect, with pooled estimates of relative risks of 0-73 (95% confidence interval (CI) 0-61 to 0-85)'7 and 0 79 (95% CI 0-58 to 108).'8 The preliminary confirmation of a protective effect of oral contraceptive use on the onset of RA by a methodological impressive study being conducted in Seattle7 supported the conclusion of the workshop that oral contraceptives probably have some association with RA."},{"key":"ref_2","first-page":"569","article-title":"Reduction in incidence of rheumatoid arthritis associated with oral contraceptives","volume":"i:","author":"J, Wingrave S.; R, Kay C.","year":"1978","unstructured":"Wingrave S J, Kay C R. Reduction in incidence of rheumatoid arthritis associated with oral contraceptives. 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JAMA 1985; 254: 1938-41.","journal-title":"JAMA"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"457","DOI":"10.1016\/0010-7824(87)90082-5","article-title":"Oral cotntraceptives, cigarette smoking and other factors in relation to arthritis","volume":"35","author":"P, Vessey M.; L, Villard-Mackintosh; D, Yeates","year":"1987","unstructured":"Vessey M P, Villard-Mackintosh L, Yeates D. Oral cotntraceptives, cigarette smoking and other factors in relation to arthritis. Contraception 1987; 35: 457-4.","journal-title":"Contraception"},{"key":"ref_12","first-page":"148","article-title":"Oral contraceptives and postmenopausal hormone use and the risk of rheumatoid arthritis","volume":"4","author":"Hernandez-Avila, M.; Liang, M.; C, Willet W.","year":"1988","unstructured":"Hernandez-Avila M, Liang M, Willet W C, et al. Oral contraceptives and postmenopausal hormone use and the risk of rheumatoid arthritis. 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Do oral contraceptives reduce the incidence of rheumatoid arthritis? Scandj Rheumatol 1984; 13: 140-6.","journal-title":"Scandj Rheumatol"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"841","DOI":"10.1016\/0021-9681(86)90086-X","article-title":"Observational studies of cause-effect relationship: an analysis of methodologic problems as illustrated by the conflicting data for the role of oral contraceptives in the etiology of rheumatoid arthritis","volume":"39","author":"M, Esdaile J.; I, Horwitz R.","year":"1986","unstructured":"Esdaile J M, Horwitz R I. Observational studies of cause-effect relationship: an analysis of methodologic problems as illustrated by the conflicting data for the role of oral contraceptives in the etiology of rheumatoid arthritis. 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Published by Elsevier B.V. on behalf of European Alliance of Associations for Rheumatology, EULAR. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright","label":"Copyright"}]}}