Table 2 The environmental determinants of the eczema and EAH study population
Variables, n (%) | Eczema | EAH | ||||
|---|---|---|---|---|---|---|
No (n = 1766) | Yes (n = 330) | P | No (n = 1989) | Yes (n = 107) | P | |
Pet keeping | Â | Â | 0.188 | Â | Â | 0.330 |
 No | 1379 (83.7) | 268 (16.3) |  | 1559 (94.7) | 88 (5.3) |  |
 Yes | 386 (86.4) | 61 (13.6) |  | 429 (96.0) | 18 (4.0) |  |
Smoking habit | Â | Â | 0.259 | Â | Â | 0.354 |
 Never | 1301 (84.5) | 238 (15.5) |  | 1455 (94.5) | 84 (5.5) |  |
 Current | 325 (85.1) | 57 (14.9) |  | 368 (96.3) | 14 (3.7) |  |
 Stopped | 117 (79.6) | 30 (20.4) |  | 140 (95.2) | 7 (4.8) |  |
Heating mode | Â | Â | 0.073 | Â | Â | 0.029 |
 Wood heating | 261 (88.8) | 33 (11.2) |  | 288 (98.0) | 6 (2.0) |  |
 Coal heating | 215 (84.3) | 40 (15.7) |  | 244 (95.7) | 11 (4.3) |  |
 Central heating | 1206 (83.5) | 239 (16.5) |  | 1363 (94.3) | 82 (5.7) |  |
Antibiotic overuse (≥ 3 times/years) |  |  | 0.235 |  |  | < 0.001 |
 No | 1364 (85.1) | 239 (14.9) |  | 1538 (95.9) | 65 (4.1) |  |
 Yes | 368 (82.7) | 77 (17.3) |  | 405 (91.0) | 40 (9.0) |  |
Daily outdoor activity | Â | Â | 0.133 | Â | Â | 0.857 |
 ≤ 1 h | 276 (81.9) | 61 (18.1) |  | 319 (94.7) | 18 (5.3) |  |
 2–3 h | 836 (83.6) | 164 (16.4) |  | 947 (94.7) | 53 (5.3) |  |
 ≥ 4 h | 653 (86.3) | 104 (13.7) |  | 721 (95.2) | 36 (4.8) |  |