Pomrehn P R, Wallace R B, Burmeister L F
JAMA. 1982 Sep 3;248(9):1073-6.
Analysis of 62,000 deaths in Iowa men aged 20 to 64 years from 1964 to 1978 indicates that Iowa farm men younger than 65 years have lower than expected mortality for all causes and for ischemic heart disease. Using data gathered by the Iowa Lipid Research Clinics (LRC) Program Prevalence Study, we compared levels of known cardiovascular risk factors in farmers with those of nonfarmers residing in the same rural county. Farm men smoked less frequently (19% v 44%) and engaged in exercise more frequently (83% v 40%) than nonfarmers. Treadmill performance in farm men indicates a higher level of fitness in farmers. Farm people consumed more total calories and cholesterol, but drank less alcohol than nonfarmers. Farm men had significantly higher serum cholesterol levels. High-density lipoprotein cholesterol levels were also higher in farmers. However, when adjusted for age and exercise status, farmers and nonfarmers had similar lipid levels. The results of the LRC survey suggest that the lower mortality rates of Iowa farmers are a reflection of a life-style that includes vigorous exercise and little consumption of alcohol and tobacco.
对1964年至1978年间爱荷华州20至64岁男性的62000例死亡情况进行分析表明，65岁以下的爱荷华州农场男性因各种原因和缺血性心脏病导致的死亡率低于预期。利用爱荷华州脂质研究诊所（LRC）项目患病率研究收集的数据，我们比较了农民与居住在同一乡村县的非农民已知心血管危险因素的水平。农场男性吸烟频率低于非农民（19%对44%），且锻炼频率高于非农民（83%对40%）。农场男性的跑步机测试表现表明农民的健康水平更高。农场居民摄入的总卡路里和胆固醇更多，但饮酒量比非农民少。农场男性的血清胆固醇水平显著更高。农民的高密度脂蛋白胆固醇水平也更高。然而，在根据年龄和运动状况进行调整后，农民和非农民的血脂水平相似。LRC调查结果表明，爱荷华州农民较低的死亡率反映了一种包括积极锻炼以及少量饮酒和吸烟的生活方式。
