Variable | Survivors | Nonsurvivors | p-value# |
Subjects n | 437 | 240 | |
Age yrs | 69.4±9.0 | 71.3±8.8 | 0.0086 |
Haemoglobin g·dL−1 | 14.6±1.5 | 14.2±1.9 | 0.0021 |
CCI | 4.6±2.4 | 6.1±2.9 | <0.0001 |
BODE index | 4.0±2.0 | 6.3±2.5 | <0.0001 |
Data are presented as mean±sd, unless otherwise stated. CCI: Charlson comorbidity index; BODE: body mass index, airflow obstruction, dyspnoea and exercise capacity index. #: calculated using a two-sided paired t-test.