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首页> 外文期刊>Annals of epidemiology >Familial aggregation of nutrient intake and physical activity: results from the San Antonio Family Heart Study.
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Familial aggregation of nutrient intake and physical activity: results from the San Antonio Family Heart Study.

机译：营养摄入和身体活动的家族聚集：圣安东尼奥家庭心脏研究的结果。

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PURPOSE: To evaluate the extent to which levels of physical activity and nutrient intake aggregate in families, and secondarily, to assess the repeatability of these behavioral measures over a 5-year period. METHODS: Measurements were obtained in a population-based sample consisting of 1364 members of 42 large Mexican American families. Nutrient intake was assessed by a food frequency questionnaire validated for use in this population. Usual level of physical activity was estimated using a 7-day recall questionnaire. RESULTS: Correlations between baseline (obtained 1992-1995) and follow-up (obtained 1996 to 2000) measures of all behaviors were highly significant (p < 0.001), ranging from 0.24 for % of calories derived from fat to 0.44 for % of calories derived from alcohol. Familial effects, estimated using variance component methods, were stronger when modeled as a genetic heritability than as a shared household effect; as a heritability they accounted for a significant portion of the total variation of all traits (9% for physical activity levels, p < 0.05; and 13-26% for nutrient intake, p < 0.001 for all). CONCLUSIONS: Measurements of physical activity and dietary behaviors in this population tracked over 5 years, and there was a significant degree of aggregation of these behaviors within families. Understanding the sources of these family effects may facilitate efforts to improve cardiovascular health.
机译：目的：评估家庭中体育锻炼和营养摄入水平的聚集程度，其次，评估这些行为措施在5年内的可重复性。方法：测量是基于人口的样本，该样本由42个墨西哥大家庭的1364名成员组成。通过食品频率问卷评估营养摄入量，该问卷经验证可用于该人群。通常的体育锻炼水平是使用7天的回忆调查表估算的。结果：所有行为的基线（1992-1995年获得）与随访（1996年至2000年获得）测量之间的相关性非常显着（p <0.001），范围从脂肪中卡路里的0.24％到卡路里中0.44％来源于酒精。用方差成分法估算的家族效应在以遗传遗传力建模时比在家庭共享效应中更强。作为遗传力，它们占所有性状总变异的很大一部分（体力活动水平为9％，p <0.05;营养摄入量为13-26％，所有p-0.001）。结论：该人群的体力活动和饮食行为的测量追踪了5年，并且在家庭内部这些行为的聚集程度很高。了解这些家庭影响的来源可能有助于改善心血管健康的努力。

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