Table 3.
Fitted models predicting (1) upper respiratory symptoms and (2) missed school days due to respiratory infections. Variables not selected (NS) did not significantly improve the model.
| Attribute | GLMM-Model | ZIP-Model | |
|---|---|---|---|
| Zeroes | Counts | ||
| 1A. Reported upper respiratory symptoms | 1B. Number of symptoms | ||
| Independent variables | OR (95%CI) | OR (95%CI) | RR (95%CI) |
| Classroom temperature during heating season | NS | NS | |
| Satisfactory | 1 | ||
| Too hot | 2.21 (0.78–6.21) | ||
| Too hot and cold | 1.45 (1.04–2.00) | ||
| Too cold | 1.27 (1.03–1.58) | ||
| Adequate ventilation | NS | ||
| Yes | 1 | 1 | |
| No | 0.78 (0.62–0.99) | 1.09 (0.96–1.23) | |
| Dampness or moisture damage | |||
| Never | 1 | 1 | 1 |
| Before 2006–2007 | 1.33 (1.00–1.77) | 0.80 (0.58–1.09) | 1.03 (0.86–1.22) |
| During 2006–2007 | 1.80 (1.13–2.87) | 0.60 (0.38–0.95) | 1.07 (0.84–1.35) |
| After 2006–2007 | 0.92 (0.56–1.50) | 1.01 (0.59–1.74) | 0.87 (0.64–1.17) |
| Visible mold | NS | NS | |
| Never | 1 | ||
| Before 2006–2007 | 0.77 (0.62–0.97) | ||
| During 2006–2007 | 0.63 (0.35–1.13) | ||
| After 2006–2007 | 2.35 (1.03–5.32) | ||
| Dampness or mold at home | 1.14 (0.83–1.55) | 0.92 (0.65–1.31) | 1.12 (0.96–1.31) |
| ETS at home | 2.47 (1.58–3.85) | 0.34 (0.19–0.62) | 1.10 (0.91–1.35) |
| 2A. Missed school days due to respiratory infections | 2B. Number of days missed | ||
| Adequate ventilation | NS | ||
| Yes | 1 | 1 | |
| No | 0.97 (0.78–1.21) | 1.16 (1.03–1.31) | |
| Dampness or mold at home | 1.16 (0.86–1.58) | 0.90 (0.65–1.25) | 1.20 (1.06–1.35) |
| ETS at home | 0.84 (0.56–1.28) | 1.24 (0.80–1.92) | 1.50 (1.28–1.76) |