| DBH study | Daycare study | p-value | ||||
| n = 2123 | n = 2334 | |||||
| Sex | Girls | 1072 | 50.5 | 1173 | 50.5 | |
| Boys | 1051 | 49.5 | 1152 | 49.5 | 0.983 | |
| Age | 1 - 2 | 375 | 17.7 | 309 | 13.3 | |
| 2 - 3 | 406 | 19.1 | 508 | 21.9 | ||
| 3 - 4 | 410 | 19.3 | 519 | 22.4 | ||
| 4 - 5 | 449 | 21.1 | 463 | 19.9 | ||
| 5 - 6 | 483 | 22.8 | 492 | 21.2 | 0.686 | |
| Type of dwelling | SH | 1275 | 61.5 | 1567 | 68.2 | |
| MH | 799 | 38.5 | 731 | 31.8 | 0.000 | |
| Location of dwelling | Rural | 185 | 9.0 | 327 | 14.2 | |
| Urban | 1860 | 91.0 | 1973 | 85.8 | 0.000 | |
| Allergy in family | No | 933 | 44.4 | 988 | 42.5 | |
| Yes | 1169 | 55.6 | 1336 | 57.5 | 0.211 | |
| Smoking in family | No | 1634 | 77.0 | 1898 | 81.3 | |
| Yes | 489 | 23.0 | 428 | 18.4 | 0.000 | |
| Hours/week at daycare | <20 | 415 | 19.5 | 460 | 22.6 | |
| >20 | 1708 | 80.5 | 1579 | 77.4 | 0.017 | |
| Age of entry at daycare | <1 y | 151 | 7.1 | 114 | 5.5 | |
| >1 y | 1962 | 92.9 | 1954 | 95.5 | 0.033 | |
| Flooring material child’s room | All other | 894 | 45.8 | 1439 | 65.8 | |
| PVC | 1058 | 54.2 | 749 | 34.2 | 0.000 | |
| Flooring material parents room | All other | 1035 | 52.7 | 1564 | 71.3 | |
| PVC | 928 | 47.3 | 631 | 28.7 | 0.000 | |
| Visible dampness | No | 2013 | 98.7 | 2200 | 98.1 | |
| Yes | 27 | 1.3 | 42 | 1.9 | 0.146 | |
| Window pane condensation | No | 1640 | 85.7 | 1672 | 84.7 | |
| Yes | 274 | 14.3 | 301 | 15.3 | 0.390 | |
| Moldy odor | No | 1907 | 94.4 | 2103 | 94.8 | |
| Yes | 114 | 5.6 | 115 | 5.2 | 0.542 | |