Table 4 Odds ratios (ORs) and 95% confidence intervals (CIs) for insomnia based on tertiles of glycemic index and glycemic load

Glycemic index

 Median score

154

213

299

 Insomnia /control

37 / 111

29 / 119

45 / 103

 Crude model

1.00 (Ref)

0.71 (0.41 – 1.23)

1.10 (0.66—1.84)

0.676

 Model 1^a

1.00 (Ref)

0.69 (0.39—1.20)

1.10 (0.65—1.86)

0.704

 Model 2^b

1.00 (Ref)

0.66 (0.37—1.17)

1.12 (0.66—1.91)

0.647

 Model 3^c

1.00 (Ref)

0.77 (0.42—1.41)

1.38 (0.77—2.47)

0.298

Glycemic load

 Median score

54.2

62.8

71.6

 Insomnia /control

39 / 109

30 / 118

42 / 106

 Crude model

1.00 (Ref)

0.73 (0.42—1.26)

1.32 (0.79—2.20)

0.195

 Model 1^a

1.00 (Ref)

0.72 (0.41—1.26)

1.34 (0.78—2.30)

0.209

 Model 2^b

1.00 (Ref)

0.93 (0.49—1.76)

2.65 (1.14—6.20)

0.014

 Model 3^c

1.00 (Ref)

0.81 (0.41—1.59)

2.72 (1.10—6.70)

0.017