Table 1 Prevalence of sick building symptoms (SBS) with demographic and lifestyle behavior of children
|  | Variables | Reference | Total n (%) or, (Mean ± SD) | Mucosal symptoms | Skin symptoms | General symptoms |
|---|---|---|---|---|---|---|
SBS symptoms | Mucosal symptoms | Yes | 304 (6.9) | Â | 38 (43.7)** | 13 (37.1) |
No | 4104 (93.1) | Â | 49 (56.3) | 22 (6.6) | ||
Skin symptoms | Yes | 87 (2.0) | 38 (43.7)** | Â | 6 (6.9)** | |
No | 4321 (98) | 266 (6.2) | Â | 29 (0.7) | ||
General symptoms | Yes | 35 (0.8) | 13 (37.1)** | 6 (6.9)** | Â | |
No | 4373 (99.2) | 291 (6.6) | 81 (93.1) | Â | ||
Demographic data | Gender | Boys | 2125 (49.2) | 177 (8.3)*** | 39 (1.8) | 10 (0.5)** |
Girls | 2192 (50.8) | 123 (5.6) | 45 (2.1) | 23 (1.1) | ||
Grade | 1 | 723 (16.4) | 43 (5.9) | 14 (1.9) | 6 (0.8) | |
2 | 739 (16.8) | 53 (7.2) | 16 (2.2) | 4 (0.5) | ||
3 | 752 (17.1) | 61 (8.1) | 15 (1.9) | 10 (1.3) | ||
4 | 768 (17.5) | 45 (5.8) | 13 (1.7) | 6 (0.8) | ||
5 | 698 (15.9) | 51 (7.3) | 16 (2.3) | 7 (1.0) | ||
6 | 708 (16.1) | 51 (7.2) | 13 (1.8) | 2 (0.3) | ||
Parental history of allergies | Yes | 2813 (63.8) | 267 (9.5)*** | 76 (2.7)*** | 26 (0.9) | |
No | 1595 (36.2) | 37 (2.3) | 11 (0.7) | 9 (0.6) | ||
Any allergies | Yes | 1465 (35.0) | 229 (15.6)*** | 64 (4.4)*** | 16 (1.1) | |
No | 2721 (65.0) | 52 (1.9) | 19 (0.7) | 18 (0.6) | ||
Lifestyle behaviors | Eating breakfast | No/sometimes | 108 (2.4) | 9 (8.3) | 2 (1.8) | 3 (2.7)* |
Always | 4295 (97.4) | 295 (6.9) | 85 (1.9) | 32 (0.7) | ||
Significant faddiness | Significant | 568 (12.9) | 57 (10.1)** | 14 (2.4) | 10 (1.7)* | |
Almost none/some | 3829 (87.1) | 247 (6.4) | 73 (1.9) | 25 (0.6) | ||
Daily TV watching | ≥ 3 h | 1394 (31.7) | 103 (7.4) | 27 (1.9) | 14 (1.0) | |
≤ 2 h | 3007 (68.3) | 201 (6.7) | 60 (2.0) | 21 (0.7) | ||
Constipation/bowel movement | Once in 3 days | 337 (7.7) | 33 (9.9) * | 13 (3.8)* | 10 (3.0)*** | |
Once in 1–2 days | 4042 (92.3) | 270 (6.7) | 74 (1.8) | 24 (0.6) | ||
Insufficient sleep | No/sometimes | 1199 (27.4) | 115 (9.6)*** | 34 (2.8)* | 22 (1.8)*** | |
Always | 3186 (72.6) | 186 (5.8) | 52 (1.6) | 11 (0.3) | ||
Feeling refreshed after sleep | No/sometimes | 1486 (33.8) | 151 (10.2)*** | 45 (3.0)*** | 24 (1.6)*** | |
Always | 2908 (66.2) | 152 (5.2) | 42 (1.4) | 10 (0.3) | ||
Deep sleep | No/sometimes | 441 (10.1) | 62 (14.1)*** | 17 (3.8)** | 12 (2.7)*** | |
Always | 3953 (89.9) | 242 (6.1) | 70 (1.8) | 21 (0.5) | ||
Lifestyle index (0–7) | Continuous | 2.1 ± 1.2 | 2.5 ± 1.3*** | 2.4 ± 1.2* | 3.1 ± 1.1*** |