Table 3.

The associations between anthocyanin intake and risk of myocardial infarction across strata of risk factors for participants from the Nurses’ Health Study II

Risk factor	Cases n	Person years n	Q5 v Q1	P for trend	P for interaction
Age
<55 years	350	1540444	0.71 (0.50–1.03)	0.16
≥ 55 years	55	110807	0.49 (0.22–1.12)	0.07	0.42
BMI mg/kg2
<25	123	823965	0.60 (0.33–1.09)	0.10
≥ 25	282	827287	0.73 (0.49–1.09)	0.20	0.60
Smoking
never	173	1010830	0.53 (0.31–0.92)	0.04
past	91	375119	0.99 (0.51–1.91)	0.91
current	141	265302	0.75 (0.42–1.34)	0.47	0.73
Physical activity
< median	259	825374	0.72 (0.47–1.11)	0.19
> median	146	825877	0.63 (0.36–1.08)	0.12	0.68
Alcohol
Non-drinker	204	668944	0.75 (0.46–1.25)	0.61
Drinker	201	982307	0.60 (0.38–0.94)	0.03	0.26
Prevalent hypertension
No	231	1398692	0.76 (0.49–1.18)	0.33
Yes	174	252560	0.59 (0.35–1.00)	0.05	0.53
History of diabetes
No	336	1609342	0.65 (0.45–0.95)	0.04
Yes	69	41910	0.80 (0.34–1.86)	0.77	0.57

Multivariate model adjusted for age, physical activity, smoking, BMI, alcohol, energy, menopausal status, PMH use, aspirin use, oral contraceptive use, family history of myocardial infarction, Cereal fiber, saturated fatty acids, trans fatty acids, polyunsaturated fatty acids, monounsaturated fatty acids, caffeine