Table 4. Distribution of allele and genotype frequencies of the Pro12Ala polymorphism in study subjects stratified by BMI.

Subjects	PPAR genotypes		Crude OR (95% CI), P	Adjusted OR (95% CI), P	Ala allelic frequencies (%)
	Pro/Pro (%)	Pro/Ala and Ala/Ala (%)
BMI 24 (n = 1772)	1582 (89.3)	190 (10.7)	1.00	1.00	5.5
BMI 24–27.9 (n = 983)	898 (91.4)	85 (8.6)	0.77 (0.58–1.00), 0.051	0.78 (0.59–1.02), 0.072	4.5
BMI ≥28 (n = 391)	363 (92.8)	28 (7.2)	0.61 (0.40–0.93), 0.021	0.64 (0.42–0.96), 0.030	3.8

Adjusted for age, sex, BMI, hypertension, and family history of diabetes.

The abbreviations used see Table 1 and 2.