Parity and the risk of developing rheumatoid arthritis: results from the Swedish Epidemiological Investigation of Rheumatoid Arthritis study

The incidence of rheumatoid arthritis in the UK: comparisons using the 2010 ACR/EULAR classification criteria and the 1987 ACR classification criteria. Results from the Norfolk Arthritis Register

(2012) Jennifer H Humphreys et al.   ANNALS OF THE RHEUMATIC DISEASES

Interaction of pregnancy and autoimmune rheumatic disease

(2011) Monika Østensen et al.   AUTOIMMUNITY REVIEWS

Influence of female hormonal factors, in relation to autoantibodies and genetic markers, on the development of rheumatoid arthritis in northern Sweden: a case–control study

(2010) E Berglin et al.   SCANDINAVIAN JOURNAL OF RHEUMATOLOGY

National cohort study of reproductive risk factors for rheumatoid arthritis in Denmark: a role for hyperemesis, gestational hypertension and pre-eclampsia?

(2009) K T Jorgensen et al.   ANNALS OF THE RHEUMATIC DISEASES

Postpartum onset of rheumatoid arthritis and other chronic arthritides: results from a patient register linked to a medical birth registry

(2009) M Wallenius et al.   ANNALS OF THE RHEUMATIC DISEASES

Rheumatoid arthritis

(2009) Lars Klareskog et al.   LANCET

Breast feeding, but not use of oral contraceptives, is associated with a reduced risk of rheumatoid arthritis

(2008) M Pikwer et al.   ANNALS OF THE RHEUMATIC DISEASES