Table 3.

Results of age-stratified Cox proportional hazards regression models estimating the IRR for type 2 diabetes comparing LB women to heterosexual women in the NHS II, 1989–2013

	IRR (95% CI)
	Ages 24–39 years	Ages 40–49 years	Ages 50–68 years
Crude	2.52 (1.60, 3.98)	1.32 (0.99, 1.76)	0.91 (0.67, 1.24)
Adjusted for confoundersa	2.44 (1.54, 3.86)	1.36 (1.02, 1.81)	0.96 (0.70, 1.31)
Adjusted for BMIb	1.46 (0.92, 2.33)	0.90 (0.68, 1.20)	0.67 (0.49, 0.92)

Referent group is heterosexual women.

^aAdjusted for age, family history of type 2 diabetes, race/ethnicity, region of residence, rural status, menopausal status, and visit to health care provider in the past 2 years.

^bAdjusted for confounders and updated BMI as a mediator.