Figure 1.

Age-specific incidence rate of sarcoidosis in women, Nurses’ Health Study II (n = 261 incident cases; 2,275,028 person-years). Similar results were observed in sensitivity analyses where (1) cases were restricted to participants who specifically indicated that the diagnosis of sarcoidosis occurred within 2 years before the questionnaire cycle where they first reported sarcoidosis (n = 163 incident cases; 2,274,204 person-years), (2) women with less frequent medical examination (as measured by the number of times participants reported having had physical examination during follow up) were excluded (analysis conducted with n = 223 incident cases and 1,828,972 person-years), and (3) women who returned fewer than eight biennial follow-up questionnaires (out of 11) were excluded (analysis conducted with n = 236 incident cases and 2,076,332 person-years).