Table 4

 Genotype distributions and allele frequencies of the examined PGC-1β variants in 7545 subjects with normal glucose tolerance, impaired glucose tolerance/impaired fasting glucose, and type 2 diabetes

Type 2 diabetic patients (n = 1433)Subjects with IFG + IGT (n = 1177)Glucose tolerant subjects (n = 4935) pAF pGD
Data are number of subjects with each genotype (% of each group) and percentage frequencies of the minor allele (MAF) (95% CI). The p values compare genotype distribution (pGD) and allele frequencies (pAF) between patients with type 2 diabetes and glucose tolerant subjects and were calculated using Fisher’s exact test (pAF) and logistic regression with adjustment for age, sex, and BMI (pGD) assuming a co-dominant model for the minor allele.
Ala203Pro
    Ala/Ala1240 (87)1010 (86)4191 (85)
    Ala/Pro186 (13)160 (14)717 (15)
    Pro/Pro7 (0)7 (1)27 (1)
    MAF7.0 (6.0 to 7.9)7.4 (6.3 to 8.4)7.8 (7.3 to 8.3)0.20.5
Arg265Gln
    Arg/Arg1261 (91)1046 (91)4378 (90)
    Arg/Gln125 (9)106 (9)462 (10)
    Gln/Gln3 (0)2 (0)21 (0)
MAF4.7 (3.9 to 5.5)4.8 (3.9 to 5.6)5.2 (4.7 to 5.6)0.40.2
Arg292Ser
    Arg/Arg1310 (93)1095 (94)4582 (94)
    Arg/Ser92 (7)68 (6)276 (6)
    Ser/Ser0 (0)2 (0)2 (0)
    MAF3.3 (2.6 to 3.9)3.1 (2.4 to 3.8)2.9 (2.5 to 3.2)0.30.9