Body Mass Index and All-Cause Mortality

Zhiqiang Wang

Research output: Contribution to journalLetterpeer-review


To the Editor The study of 3 Danish cohorts by Dr Afzal and colleagues1 concluded that the BMI value associated with the lowest all-cause mortality increased by 3.3 in cohorts enrolled from 1976-1978 through 2003-2013. The authors used Cox proportional hazards regression to estimate hazard ratios, with age as the time scale. By doing so, the authors stated that the age differences among the 3 cohorts were automatically adjusted for. However, some concerns about the study design may directly affect the results of the study.
Original languageEnglish
Pages (from-to)991-992
Number of pages2
Issue number9
Publication statusPublished - 6 Sep 2016
Externally publishedYes


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