Table 2 Odds ratio of diabetes according to quartile of dietary GI/GL in the JPHC Study

Men (n = 27769)

Dietary GI

No. of cases

152

172

187

179

Age and area adjusted OR (95% CI)

1.00

1.13

(0.91-1.41)

1.24

(0.99-1.54)

1.17

(0.94-1.46)

0.12

Multivariate OR^a (95% CI)

1.00

1.17

(0.93-1.48)

1.29

(1.01-1.65)

1.19

(0.90-1.59)

0.15

Energy-adjusted dietary GL

No. of cases

147

194

184

165

Age and area adjusted OR (95% CI)

1.00

1.34

(1.08-1.67)

1.27

(1.02-1.59)

1.13

(0.90-1.43)

0.46

Multivariate OR (95% CI)

1.00

1.34

(1.07-1.69)

1.27

(0.998-1.62)

1.16

(0.89-1.53)

0.40

Women (n = 36864)

Dietary GI

No. of cases

105

118

124

153

Age and area adjusted OR (95% CI)

1.00

1.10

(0.85-1.44)

1.12

(0.86-1.46)

1.34

(1.03-1.72)

0.03

Multivariate OR (95% CI)

1.00

1.05

(0.79-1.38)

1.03

(0.77-1.38)

1.14

(0.81-1.60)

0.51

Energy-adjusted dietary GL

No. of cases

92

124

126

158

Age and area adjusted OR (95% CI)

1.00

1.35

(1.02-1.77)

1.34

(1.02-1.76)

1.66

(1.28-2.17)

0.0003

Multivariate OR (95% CI)

1.00

1.32

(0.999-1.75)

1.28

(0.96-1.71)

1.52

(1.13-2.04)

0.01