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. Author manuscript; available in PMC: 2023 Nov 1.
Published in final edited form as: Maturitas. 2022 Jul 21;165:38–46. doi: 10.1016/j.maturitas.2022.07.005

Figure 1.

Figure 1.

Flow chart of the two study cohorts. All women who underwent bilateral oophorectomy at age ≤45 years and age-matched (±1 year) referent women were identified from the Mayo Clinic Cohort Study of Oophorectomy and Aging-2 (MOA-2). A random sample stratified by estrogen therapy was selected among women who underwent bilateral oophorectomy. The corresponding age-matched referent women were passively included (by virtue of the matching). The medical records for the sampled women were abstracted for metabolic parameters using the Rochester Epidemiology Project medical records-linkage system.