Table 2.

Multivariable models of parity and prevalent diabetes

	Model 1: age and race	Model 2: potential confounders*	Model 3: all potential confounders and anthropometrics†
All
Nulliparous	1.0	1.0	1.0
1–2 live births	0.85 (0.67–1.08)	0.85 (0.66–1.09)	0.87 (0.65–1.06)
3–4 live births	0.91 (0.70–1.19)	0.90 (0.68–1.18)	0.88 (0.63–1.08)
≥5 live births	1.57 (1.20–2.06)	1.33 (1.00–1.77)	1.21 (0.86–1.49)
Blacks
Nulliparous	1.0	1.0	1.0
1–2 live births	0.78 (0.51–1.18)	0.81 (0.54–1.23)	0.86 (0.58–1.29)
3–4 live births	0.93 (0.58–1.49)	0.91 (0.56–1.50)	1.02 (0.64–1.64)
≥5 live births	1.64 (1.10–2.45)	1.54 (1.02–2.32)	1.43 (0.98–2.10)
Whites
Nulliparous	1.0	1.0	1.0
1–2 live births	0.88 (0.66–1.18)	0.86 (0.62–1.19)	0.88 (0.64–1.20)
3–4 live births	0.92 (0.67–1.26)	0.89 (0.63–1.26)	0.84 (0.60–1.18)
≥5 live births	1.50 (1.03–2.17)	1.20 (0.81–1.78)	1.06 (0.72–1.57)

Data are prevalence ratio (95% CI). Generalized linear models with a log-link and Poisson distribution are shown.

*Model 2: age, race, marital status (4), income (3), education (3), height (in centimeters), alcohol yes/no, clinic (4), and smoking (3).

†Model 3: also for BMI, BMI at age 50 years, and waist circumference.