Risk of Diabetes in Middle Age by Age at Menarche, HR (95% CI).

Descriptive statistics for age at menarche by quintiles of age at menarche are: Quintile 1: mean = 12 years, range = 8–13 years, std = 0.56 years; Quintile 2: mean = 14years, range = 14–14 years, std = 0 years; Quintile 3: mean = 15 years, range = 15–15 years, std = 0 years; Quintile 4: mean = 16 years, range = 16–16 years, std = 0 years; Quintile 5: mean = 17 years, range = 17–26 years, std = 0. 89 years.*Expressed as per standard deviation change.Model 1: univariate analyses. Model 2 controlled for birth cohort, education and income. Model 3 controlled for birth cohort, education, income, and BMI at baseline. Model 4 controlled for birth cohort, education, income, BMI at age 20, BMI at baseline, and participation in team sports during adolescence.