Table 2 Effect of body mass index (BMI) group (reference group underweight/normal weight) on overall survival (OS) and disease-free survival (DFS) in fully adjusted multivariate Cox regressions
Outcome parameter | Variable | Hazard ratio | 95 % CI | p value |
|---|---|---|---|---|
OS | BMI group | 0.005 | ||
Overweight vs. underweight/normal weight | 1.00 | 0.75–1.32 | 0.979 | |
Slightly obese vs. underweight/normal weight | 1.06 | 0.75–1.49 | 0.758 | |
Moderately obese vs. underweight/normal weight | 1.07 | 0.62–1.86 | 0.799 | |
Severely obese vs. underweight/normal weight | 2.79 | 1.63–4.77 | <0.001 | |
DFS | BMI group | 0.001 | ||
Overweight vs. underweight/normal weight | 1.18 | 0.95–1.45 | 0.129 | |
Slightly obese vs. underweight/normal weight | 1.06 | 0.81–1.40 | 0.664 | |
Moderately obese vs. underweight/normal weight | 0.96 | 0.61–1.51 | 0.849 | |
Severely obese vs. underweight/normal weight | 2.70 | 1.71–4.28 | <0.001 |