Women who were 20 or more pounds underweight lived longer is the observations about the connection between weight and mortality is true.
How does obesity cause mortality?
- Obesity was linked to greater death rates from cancer and cardiovascular disease. Men had the strongest correlation between BMI and cardiovascular disease mortality (RR=2.90), while women and men with BMIs more than 25.0 and 26.5 also had considerably higher odds of dying from CVD.
- Individuals who never exceeded normal weight had a death rate of 27.93 per 1000 person-years, but those who were previously overweight or obese had mortality rates of 47.48 and 66.67 per 1000 person-years, respectively.
- Although it is well established that BMI is significantly correlated with all-cause mortality there haven't been many research with sample sizes big enough to properly look at BMI's correlations with a wide range of cause-specific mortality outcomes.
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