Table 2 Characteristics of casesa and controls who filled-in SF-36
| Â | Controls | NAR | AR | CB | PA | CA | COPD | p-valueb |
|---|---|---|---|---|---|---|---|---|
n (%) | 328 (32.4%) | 95 (9.5%) | 163 (16.1%) | 48 (4.7%) | 126 (12.4%) | 224 (22.1%) | 28 (2.8%) | Â |
Gender (female), n (%) | 168 (51.2) | 58 (61.1) | 79 (48.5) | 26 (54.2) | 73 (57.9) | 109 (48.7) | 7 (25.0) | 0.021 |
Age years, mean (sd) | 45.3 (9.6) | 44.8 (9.7) | 42.9 (10.7) | 43.8 (9.6) | 43.1 (9.4) | 41.9 (9.4) | 52.2 (8.5) | < 0.001 |
BMI kg/m2, mean (sd) | 25.0 (4.3) | 24.3 (4.4) | 24.3 (4.0) | 24.8 (4.3) | 24.9 (4.7) | 24.8 (4.2) | 25.8 (3.4) | 0.231 |
Education (low), n (%) | 78 (23.8) | 24 (25.3) | 25 (15.3) | 18 (37.5) | 15 (12.0) | 39 (17.4) | 10 (35.7) | < 0.001 |
Smoking habits, n(%) | < 0.001 | |||||||
 never smokers | 172 (52.8) | 34 (35.8) | 96 (58.9) | 22 (45.8) | 67 (53.2) | 99 (44.2) | 10 (35.7) | |
 past smokers | 98 (30.1) | 33 (34.7) | 38 (23.3) | 8 (16.7) | 31 (24.6) | 60 (26.8) | 9 (32.1) | |
 current smokers | 56 (17.2) | 28 (29.8) | 29 (17.8) | 18 (37.5) | 28 (22.2) | 65 (29.0) | 9 (32.1) | |
Non-resp. comorbidities, n (%) | 74 (22.6) | 45 (47.9) | 55 (33.7) | 20 (41.7) | 47 (37.6) | 81 (36.3) | 14 (50.0) | < 0.001 |
Cardiac comorbidities, n (%) | 33 (10.2) | 24 (25.2) | 31 (19.0) | 11 (22.9) | 17 (13.6) | 28 (12.5) | 4 (14.3) | 0.010 |
FEV1% predicted, mean (sd) | 101.9(11.3) | 100.9(12.6) | 100.3 (12.0) | 96.8(10.7) | 98.9(12.4) | 97.0 (12.3) | 78.6 (15.5) | < 0.001 |