Rice consumption is not associated with risk of cardiovascular disease morbidity or mortality in Japanese men and women: a large population-based, prospective cohort study123

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ABSTRACT

Background:

Rice consumption has been associated with risk of type 2 diabetes, but its relation with cardiovascular disease (CVD) is limited.

Objective:

We examined the association between rice consumption and risk of CVD incidence and mortality in a Japanese population.

Design:

This was a prospective study in 91,223 Japanese men and women aged 40–69 y in whom rice consumption was determined and updated from 3 self-administered food-frequency questionnaires, each 5 y apart. Follow-up for incidence was from 1990 to 2009 in cohort I and 1993 to 2007 in cohort II and for mortality was from 1990 to 2009 in cohort I and 1993 to 2009 in cohort II. HRs and 95% CIs of CVD incidence and mortality were calculated according to quintiles of cumulative average rice consumption.

Results:

In 15–18 y of follow-up, we ascertained 4395 incident cases of stroke, 1088 incident cases of ischemic heart disease (IHD), and 2705 deaths from CVD. Rice consumption was not associated with risk of incident stroke or IHD; the multivariable HR (95% CI) in the highest compared with lowest rice consumption quintiles was 1.01 (0.90, 1.14) for total stroke and 1.08 (0.84, 1.38) for IHD. Similarly, there was no association between rice consumption and risk of mortality from CVD; the HR (95% CI) for mortality from total CVD was 0.97 (0.84, 1.13). There were no interactions with sex or effect modifications by body mass index for any endpoint.

Conclusion:

Rice consumption is not associated with risk of CVD morbidity or mortality.

Cited by (0)

1

From the Graduate School of Medicine, Osaka University, Osaka, Japan (ESE and HI); the Faculty of Medicine, Menia University, Menia, Egypt (ESE); the Department of Public Health Medicine, University of Tsukuba, Ibaraki, Japan (KY); the Department of Preventive Cardiology, National Cerebral and Cardiovascular Centre, Osaka, Japan (YK); the Graduate School of Medicine, Ehime University, Ehime, Japan (IS); the Department of Public Health, Fujita Health University, Aichi, Japan (HY); the Department of Health and Human Security, University of Tokyo, Tokyo, Japan (MI); and the Epidemiology and Prevention Division, National Cancer Centre, Tokyo, Japan (NS and ST).

2

The Japan Public Health Centre-based Prospective Study was supported by Grants-in-Aid for cancer Research (19shi-2) and a Health Sciences Research Grant [research on Comprehensive Research on Cardiovascular disease (H19-016)] from the Ministry of Health, Labour and Welfare of Japan.

3

Address correspondence to H Iso, Faculty of Public Health Medicine, Department of Social and Environmental Medicine, Graduate School of Medicine Osaka University, Suita Shi, Osaka 565-0871, Japan. E-mail: [email protected].