Statistical analyses
death
REGRESSION
Cox proportional hazards regression was used to calculate sex-specific hazard ratios (HRs) and 95% confidence intervals (CIs) to assess the relationship between the baseline anthropometric measures and all-cause and cause-specific mortality. For cause-specific mortality, participants were censored for other causes at time of death to obtain cause-specific hazard ratios. In the current analyses, BMI was used as a categorical variable to enhance comparability with existing studies, using specific cut points for older adults based on a recent meta-analysis which summarized the evidence on the association between BMI and all-cause mortality in adults ≥ 65 yearsFor further comparison with other studies, the WHO BMI recommended cut-offs were also used, with underweight defined as BMI < 18.5 kg/mAll statistical tests were two sided, and we considered 