Table 2.

Dietary glycemic index, dietary glycemic load and incidence of myocardial infarction

	Median	Cases	Person-years	Age-adjusted incidence rate ratio (95% CI)*	Multivariable-adjusted incidence rate ratio (95% CI)†
Dietary glycemic index
Quartile 1	69.5	229	78,498	1 (reference)	1 (reference)
Quartile 2	73.3	246	78,575	1.04 (0.87–1.25)	1.06 (0.88–1.27)
Quartile 3	76.1	295	77,914	1.10 (0.93–1.31)	1.11 (0.92–1.33)
Quartile 4	79.9	368	76,515	1.16 (0.98–1.37)	1.12 (0.92–1.35)
P-trend				0.06	0.24
Dietary glycemic load
Quartile 1	131	229	78,423	1 (reference)	1 (reference)
Quartile 2	150	264	78,187	1.06 (0.89–1.27)	1.14 (0.93–1.39)
Quartile 3	164	296	77,858	1.07 (0.90–1.27)	1.18 (0.94–1.50)
Quartile 4	184	349	77,035	1.09 (0.92–1.29)	1.22 (0.90–1.65)
P-trend				0.34	0.23

^*Cox proportional hazards model accounting for age.

^†Additionally adjusted for education (less than high school, high school, university), BMI (linear term), physical activity (linear term), cigarette smoking (current, past, never), living alone (yes, no), postmenopausal hormone use (yes, no), aspirin use (yes, no), total energy intake (linear term), alcohol intake (linear term), fiber intake (linear term), saturated fat (linear term), polyunsaturated fat (linear term), protein (linear term), carbohydrate (linear term, dietary glycemic index only), family history of myocardial infarction before 60 years (yes, no), self-reported history of hypertension (yes, no), and self-reported history of high cholesterol (yes, no)