Sangita Sharma, PhD, Endowed Chair in Aboriginal Health, Professor of Aboriginal and Global Health, University of Alberta, Department of Medicine, 5-10 University Terrace, 8303 112 Street Edmonton, Alberta, T6G 2T4, Canada. Tel: 780 492 3214; Fax: 780 492 3018. Email:
J Nutr Health Aging. 2014;18(6):573-8. doi: 10.1007/s12603-014-0010-x.
Mortality rates from ischemic heart disease vary among ethnic groups. Dietary intake of fruits and vegetables has been associated with a lower risk of ischemic heart disease, but ethnic-specific data are limited.
Prospective cohort study.
Hawaii and Los Angeles County, between 1993 and 1996.
These analyses included 164,617 adults age 45 to 75, representing five ethnic groups who were enrolled in the Multiethnic Cohort Study. Dietary data were collected at baseline using a validated food frequency questionnaire and fatal ischemic heart disease cases were identified up to December 31, 2001. Associations between fruit and vegetable consumption and fatal ischemic heart disease were examined using multivariate Cox proportional hazard models.
The associations between fruit and vegetable intake and fatal ischemic heart disease were similar among the five ethnic groups. When data for the ethnic groups were combined, higher vegetable intake was associated with a protective effect against ischemic heart disease in men with all intake levels above 3.4 servings per day (over 6.6 servings per day: hazard ratio, 0.73; 95% confidence interval, 0.58-0.92). Inconsistent results were observed for women, where the protective association was observed only at mid-level vegetable intake levels, but not among women with the highest level of vegetable intake. There was no evidence of an association for fruit intake.
Associations between fruit and vegetable intake and fatal IHD do not appear to vary among ethnic groups. Additional research is needed to clarify associations for fruit versus vegetable intake and impact on cardiovascular outcomes.
不同种族群体的缺血性心脏病死亡率存在差异。水果和蔬菜的饮食摄入与缺血性心脏病的风险降低有关，但种族特异性数据有限。
前瞻性队列研究。
1993 年至 1996 年间的夏威夷和洛杉矶县。
这些分析包括来自五个种族群体的 164617 名年龄在 45 至 75 岁之间的成年人，他们参加了多民族队列研究。在基线时使用经过验证的食物频率问卷收集饮食数据，并确定截至 2001 年 12 月 31 日的致命性缺血性心脏病病例。使用多变量 Cox 比例风险模型检查水果和蔬菜消费与致命性缺血性心脏病之间的关联。
在五个种族群体中，水果和蔬菜摄入与致命性缺血性心脏病之间的关联相似。当将种族群体的数据合并时，较高的蔬菜摄入量与男性的缺血性心脏病保护作用相关，所有摄入量水平均高于 3.4 份/天（超过 6.6 份/天：风险比，0.73；95%置信区间，0.58-0.92）。对于女性，观察到不一致的结果，仅在中等水平的蔬菜摄入量观察到保护关联，但在最高水平的蔬菜摄入量女性中则没有。水果摄入量没有证据表明存在关联。
水果和蔬菜摄入量与致命性 IHD 之间的关联似乎在不同种族群体中没有差异。需要进一步研究以澄清水果与蔬菜摄入的关联及其对心血管结局的影响。
