Table 1 Characteristics of the 73 COPD patients in the study and 126 COPD patients in the Cohort not recruited to the study
From: Daily activity during stability and exacerbation of chronic obstructive pulmonary disease
73 COPD patients | Remaining 126 COPD patients in the Cohort | P-value | |||
|---|---|---|---|---|---|
Mean | (± SD) | Mean | (± SD) | ||
Age (years) | 71.1 | (±8.7) | 70.2 | (±8.8) | 0.51 |
FEV 1 (l) | 1.31 | (±0.5) | 1.40 | (±0.5) | 0.25 |
FEV 1 (% predicted) | 52.9 | (±16.5) | 56.2 | (±16.1) | 0.22 |
FVC (l) | 2.79 | (±0.9) | 2.76 | (±0.9) | 0.83 |
FEV 1 /FVC (%) | 47.8 | (±12.6) | 50.7 | (±12.3) | 0.11 |
BMI (kg/m 2 ) | 26.8 | (±5.6) | 27.0 | (±5.1) | |
Median | ( IQR ) | Median | ( IQR ) | ||
Exacerbations/year | 2 | (1.0-3.0) | 1.4 | (0.7-3.0) | 0.40 |
% | |||||
Sex (males) | 69.9 | 62.6 | 0.36 | ||
Chronic bronchitis | 54.3 | 54.5 | 0.98 | ||
Smoking at recruitment | 35.6 | 32.0 | 0.77 |