Fig. 3: Cumulative incidence curves for all chronic obstructive pulmonary disease in women who underwent bilateral oophorectomy compared with referent women.
From: A population-based cohort study on the risk of obstructive lung disease after bilateral oophorectomy
a, b Strata by age at oophorectomy; c, d strata by surgical indication; e, f strata by smoking status; g, h strata by body mass index at index date. The curves were weighted using inverse probability weights derived from a logistic regression model including 16 chronic conditions present at index, years of education, quartiles of household income, race, body mass index, cigarette smoking, and age and calendar year at index date (details provided in text). The interactions were not significant by age at oophorectomy, surgical indication, smoking status, or by body mass index. BMI body mass index, HR hazard ratio.
