A Danish study revealed that the body mass index (BMI) associated with the lowest all-cause mortality increased by 3.3 from cohorts enrolled from 1976-1978 through 2003-2013. The study included 3 cohorts from the same general population enrolled at different times: 1976-1978 (n = 13 704), 1991-1994 (n = 9482) and 2003-2013 (n = 97 362). All participants were followed up from inclusion in the studies to November 2014, emigration, or death, whichever came first. Except for cancer mortality, the association of BMI with all-cause, cardiovascular, and other mortality was curvilinear (U-shaped). The BMI value that was associated with the lowest all-cause mortality was 23.7 in the 1976-1978 cohort, 24.6 in the 1991-1994 cohort, and 27.0 in the 2003-2013 cohort. The corresponding BMI estimates for cardiovascular mortality were 23.2, 24.0, and 26.4, respectively, and for other mortality, 24.1, 26.8, and 27.8, respectively. The results are consistent with those of several other large studies. Source: http://jama.jamanetwork.com/
丹麦的一项研究发现，伴随加入者最低全因死亡率的身体质量指数从1976 – 1978年间到2003-2013年间增加了3.3。该研究包括同一总人口不同时间加入的3个群组：1976-1978年（13 704人），1991-1994年（9482人）和2003-2013年（97 362人）。所有参与者都从加入研究开始随访至2014年11月，移民，或死亡。除了癌症死亡率，身体质量指数与全因，心血管和其他死亡率之间的关系是曲线（U形）。伴随最低全因死亡率的身体质量指数分别为，1976-1978组的23.7，1991-1994组的24.6和2003-2013组的27.0。对心血管死亡率，相应的身体质量指数估计分别为23.2，24.0和26.4。对其他死亡率则分别为24.1，26.8，和27.8。该结果与其他几个大的研究一致。来源：http://jama.jamanetwork.com/
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