Table 4:

Relationship between being born preterm and odds of self-reported prevalent type 2 diabetes among postmenopausal women in the WHI at baseline, stratified by self-reported race/ethnicity

	Race			Ethnicity
	Asian OR (95% CI)	Black OR (95% CI)	White OR (95% CI)	Hispanic/Spanish/Latinx OR (95% CI)	Not Hispanic/Spanish/Latinx OR (95% CI)
N (T2D cases)	1,883 (76)	8,153 (404)	72,350 (2,688)	3,940 (185)	80,852 (3,106)
Type 2 Diabetes
Unadjusted (cases=3,266)	0.60 (0.08, 4.50)	1.40 (0.79, 2.47)	1.58 (1.28, 1.95)	2.08 (1.03, 4.20)	1.50 (1.22, 1.83)
Adj for Birthweight (T2D cases=2,871)	0.78 (0.10, 6.35)	1.01 (0.53, 1.93)	1.18 (0.94, 1.49)	1.61 (0.69, 3.77)	1.12 (0.89, 1.39)
Adj for Demographics (T2D cases=2,132)	0.75 (0.09, 6.00)	1.73 (0.91, 3.29)	1.85 (1.47, 2.33)	2.77 (1.05, 7.34)	1.75 (1.40, 2.18)
Adj for Demographics & Birthweight (T2D cases=1,899)	0.80 (0.09, 7.19)	1.28 (0.61, 2.66)	1.44 (1.11, 1.86)	1.55 (0.47, 5.08)	1.34 (1.05, 1.71)
Adj for Demographics & Lifestyle Factors (T2D cases=2,063)	0.85 (0.10, 6.89)	1.82 (0.92, 3.60)	1.87 (1.47, 2.37)	2.31 (0.81, 6.56)	1.79 (1.42, 2.24)
Adj for Demographics & Lifestyle Factors & Birthweight (T2D cases=1,839)	0.87 (0.09, 8.48)	1.40 (0.64, 3.07)	1.44 (1.10, 1.88)	1.22 (0.35, 4.23)	1.37 (1.03, 1.82)

Referent group for each analytical model is full term births. Due to small sample sizes, we were unable to consider other self-identified race categories in the stratified analyses, which include: Native Hawaiian/Other Pacific Islander, American Indian/Alaskan Native, and multi-racial. Demographic factors include age, normalized socioeconomic status, education, region, and family history of diabetes. Lifestyle factors include BMI, smoking status, and alcohol use.