Fig. 2

The distribution of RA onset age and menopause age in post-menopausal RA patients. (A) The distribution of RA onset age and menopause age in post-menopausal women with RA; (B) The distribution of time interval between the age of RA onset and menopause; (C) Percentage of post-menopausal women with RA onset before and after menopause. RA, rheumatoid arthritis; EM, Early menopause; UM, Usual menopause