Table 2 |
||||||
| Depressive and anxious symptoms of the study population | ||||||
| Variables | Healthy controls | COPD | ||||
| I (n = 163) | II (n = 460) | III (n = 289) | IV (n = 188) | total | ||
| HADS-A | ||||||
| Total score | 3.1 (0–12) | 6.1(2–15) | 6.3(4–17) | 6.5(5–18) | 7.0(6–19)b | 6.7 (2–19)a |
| HADS-A ≥ 8 | 58 (5.3) | 14(8.6) | 70(15.2) | 65(22.5) | 52(27.7)b | 201(18.3)a |
| HADS-D | ||||||
| Total score | 3.3 (0–13) | 5.8(3–15) | 6.5(5–17) | 6.8(5–18) | 7.3(7–20)b | 6.7(3–20)a |
| HADS-D ≥ 8 | 79(7.2) | 25(15.3) | 118(25.7) | 123(42.6) | 127(67.6)b | 393(35.7)a |
| BODE index | NA | 2.4(1–6) | 2.7(1–7) | 3.3(1–8) | 4.1(2–8)b | 2.9(1–8) |
HADS-A, HADS—anxiety; HADS-D,HADS—depression.
Values are expressed as the median (range) or number (%).
a p < 0.01 compared to healthy controls.
b p < 0.01 compared to mild-to-severe COPD.
Lou et al. BMC Pulmonary Medicine 2012 12:53 doi:10.1186/1471-2466-12-53
