Table 2 Characteristics of the entire study population and by CRS score (CRS ≤ 20; CRS > 20) in 521 subjects.
|  | All subjects n = 521 | CRS≤ 20 n = 248 | CRS > 20 n = 273 | P a |
|---|---|---|---|---|
Number of subjects (%) | ||||
Gender | Â | Â | Â | Â |
Male | 223 (42.8) | 115 (46.4) | 108 (39.6) | Â |
Female | 298 (57.2) | 133 (53.6) | 165 (60.4) | 0.13 |
Age (years) | Â | Â | Â | Â |
0–9 | 2 (0.4) | 2 (0.8) | - |  |
10–19 | 17 (3.3) | 13 (5.2) | 4 (1.5) |  |
20–29 | 32 (6.1) | 21 (8.5) | 11 (4.0) |  |
30–39 | 88 (16.9) | 44 (17.7) | 44 (16.1) |  |
40–49 | 105 (20.2) | 42 (16.9) | 63 (23.1) |  |
50–59 | 148 (28.4) | 56 (22.6) | 92 (33.7) |  |
60–69 | 90 (17.3) | 45 (18.1) | 45 (16.5) |  |
70–79 | 31 (6.0) | 18 (7.3) | 13 (4.8) |  |
80–89 | 6 (1.2) | 5 (2.0) | 1 (0.4) |  |
90–99 | 2 (0.4) | 2 (0.8) | - | 0.001# |
Median age (range) | 51.2 (7.5–98.0) | 51.4 (13.9–84.6) | 50.2 (7.5–98.0) | 0.44 |
Smoking | Â | Â | Â | Â |
current | 165 (31.7) | 90 (36.3) | 75 (27.5) | Â |
former | 23 (4.4) | 11 (4.4) | 12 (4.4) | Â |
never | 333 (63.9) | 147 (59.3) | 186 (68.1) | 0.09 |