PARITY AND RISK OF RHEUMATOID ARTHRITIS IN FINNISH WOMEN |
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Authors: | HELIOVAARA, M. AHO, K. REUNANEN, A. KNEKT, P. AROMAA, A. |
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Affiliation: | Social Insurance Institution P.O. Box 78, FIN-00381 Helsinki *National Public Health Institute Mannerheimintie 166, FIN-00300 Helsinki, Finland |
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Abstract: | Several recent case-control studies have suggested that nulliparityis a risk factor for rheumatoid arthritis (RA). We studied parityfor its association with the incidence of RA in a cohort ofadult Finnish women examined by the Mobile Clinic of the SocialInsurance Institution in 196672. The 15 441 women were |
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