Table 1.
Basic characteristics comparing the subjects with and without COPD among females and males, respectively
| Variables | Females
|
Males
|
||||
|---|---|---|---|---|---|---|
| Non-COPD (n=255) |
COPD (n=195) |
P-valuea | Non-COPD (n=315) |
COPD (n=246) |
P-valuea | |
| Age (years), mean (SD) | 67.8 (10.3) | 69.5 (9.7) | 0.074 | 67.8 (10.2) | 68.3 (9.0) | 0.616 |
| Smoker, n (%) | 26 (10.2) | 40 (20.6) | 22 (7.0) | 62 (25.2) | ||
| Ex smoker, n (%) | 93 (36.5) | 82 (42.1) | 154 (48.9) | 135 (54.9) | ||
| Non smoker, n (%) | 136 (53.3) | 73 (20.9) | 0.001 | 139 (44.1) | 49 (20.0) | <0.001 |
| Height (cm), mean (SD) | 160.2 (6.7) | 160.5 (6.2) | 0.602 | 173.7 (7.5) | 174.6 (6.6) | 0.127 |
| BMI (kg/m2), mean (SD) | 27.9 (4.7) | 26.7 (4.5) | 0.007 | 27.6 (3.7) | 27.1 (3.9) | 0.141 |
| <18.5, n (%) | 4 (1.6) | 2 (1.0) | 0 (0.0) | 1 (0.4) | ||
| 18.5–24.9, n (%) | 67 (26.3) | 84 (43.1) | 72 (22.9) | 72 (29.3) | ||
| 25–29.9, n (%) | 116 (45.5) | 68 (34.9) | 177 (56.2) | 130 (52.8) | ||
| ≥30, n (%) | 68 (26.7) | 41 (21.0) | 0.003 | 66 (21.0) | 43 (17.5) | 0.201 |
| FEV1 % of predicted value, mean (SD) | 97.2 (14.3) | 80.1 (16.6) | <0.001 | 93.7 (13.3) | 74.6 (15.7) | <0.001 |
| Any respiratory symptoms, n (%) | 125 (49.0) | 131 (67.2) | <0.001 | 162 (51.4) | 183 (74.4) | <0.001 |
| Heart disease, n (%) | 32 (12.5) | 31 (15.9) | 0.343 | 65 (20.6) | 46 (18.7) | 0.490 |
| HGS (kg), mean (SD) | 26.9 (6.7) | 25.8 (5.9) | 0.053 | 46.3 (10.5) | 45.9 (9.9) | 0.676 |
Notes:
a
Comparing non-COPD and COPD. P-values <0.05 are given in bold.
Abbreviations: SD, standard deviation; BMI, body mass index; FEV1%, forced expiratory volume in 1 second, percentage of predicted value; HGS, hand grip strength.