Table 2

Odds ratio of diabetes according to quartile of dietary GI/GL in the JPHC Study
Quartile P-trend
1 2 3 4
Men (nā€‰=ā€‰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 ORa (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 (nā€‰=ā€‰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

aAge, public health center area, total energy intake, smoking status, family history of diabetes, physical activity (metabolic equivalents), hypertension, BMI, alcohol intake, magnesium, calcium, dietary fiber and coffee intake and occupation.

Oba et al.

Oba et al. Nutrition Journal 2013 12:165   doi:10.1186/1475-2891-12-165

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