Table 5.
Multivariable Cox’s proportional hazard analyses for relationship between serum lymphocyte % and mortality.
| Hazards ratio (95% CI) | P value | |
|---|---|---|
| Baseline lymphocyte, % | ||
| Lymphocyte, % | 0.99 (0.96–1.03) | 0.749 |
| Lymphocyte groups | ||
| Normal lymphocytea | Ref | |
| Low lymphocyteb | 1.27 (0.66–2.43) | 0.478 |
| Overall level of lymphocyte, % | ||
| Lymphocyte, % | 0.99 (0.95–1.05) | 0.937 |
| Lymphocyte groups | ||
| Normal lymphocytea | Ref | |
| Low lymphocyteb | 1.92 (0.77–4.80) | 0.163 |
Adjusted for age, sex, body mass index, smoking status (current or former), and baseline forced expiratory volume in 1 s, % predicted.
CI confidence interval.
aNormal lymphocyte group was defined as those with serum lymphocyte percentage 20 to 51%.
bLow lymphocyte group was defined as those with serum lymphocyte percentage < 20%.