Table 3. Univariate and multivariate analyses of classroom measurements.
| β (1,3) glucans | DM antigen | Cat allergen | Dog allergen | Mouse allergen | |
| GMR (95% CI) | GMR (95% CI) | GMR (95% CI) | GMR (95% CI) | GMR (95% CI) | |
| Full time used classrooms (compared to other locations) | 1.23 (1.15–1.32) | 1.15 (1.04–1.27) | 1.19 (1.09–1.30) | 1.25 (1.16–1.36) | 1.13 (1.02–1.26) |
| Univariate analysis on classrooms | |||||
| Season (sampled in winter (ref) vs. fall) | 1.02 (0.83–1.26) | 1.44 (1.10–1.88) | 0.74 (0.57–0.97) | 0.53 (0.35–0.80) | 0.90 (0.63–1.31) |
| Moisture status school | 1.24 (1.05–1.47) | 1.26 (0.96–1.66) | 1.15 (0.88–1.50) | 1.37 (0.87–2.16) | 1.25 (0.90–1.74) |
| Moisture/mold observations in classroom | 0.93 (0.78–1.09) | 1.27 (0.98–1.65) | 0.94 (0.74–1.19) | 0.96 (0.78–1.18) | 0.81 (0.63–1.05) |
| Age of building (per 10 years increase) | 1.03 (0.99–1.07) | 1.05 (0.99–1.12) | 1.00 (0.93–1.06) | 1.00 (0.89–1.12) | 1.02 (0.94–1.10) |
| Floor level | 0.90 (0.82–0.98) | 0.80 (0.70–0.91) | 0.96 (0.85–1.09) | 1.00 (0.88–1.13) | 0.97 (0.84–1.12) |
| Occupancy (per 5 students increase) | 1.06 (1.00–1.12) | 1.04 (0.95–1.15) | 1.07 (0.98–1.16) | 1.08 (1.01–1.16) | 1.10 (0.98–1.24) |
| Pet owning children (per 5% increase) | 1.00 (0.99–1.02) | 1.00 (0.98–1.02) | 1.03 (1.01–1.05) | 1.01 (0.99–1.03) | 1.02 (0.99–1.04) |
| Cat owning children (per 5% increase) | 1.00 (0.99–1.02) | 1.00 (0.97–1.03) | 1.03 (1.00–1.05) | 0.99 (0.96–1.02) | 1.01 (0.98–1.05) |
| Dog owning children (per 5% increase) | 1.00 (0.98–1.02) | 0.99 (0.96–1.02) | 1.03 (1.00–1.06) | 1.05 (1.02–1.08) | 1.02 (0.98–1.05) |
| Higher grade (1 grade increase) | 0.98 (0.96–1.00) | 0.54 (0.53–0.56) | 0.99 (0.96–1.02) | 1.00 (0.98–1.03) | 0.97 (0.94–1.01) |
| Socioecononic status | 1.06 (1.03–1.09) | 1.06 (1.01–1.12) | 1.10 (1.06–1.14) | 1.15 (1.06–1.24) | 0.95 (0.89–1.02) |
| Multivariate analysis on classrooms | |||||
| Season (sampled in winter (ref) vs. fall) | 1.61 (1.35–1.92) | NS | NS | ||
| Moisture status school | 1.67 (1.02–1.33) | NS | NS | NS | |
| Moisture/mold observations in classroom | NS | NS | |||
| Age of building (per 10 years increase) | NS | NS | |||
| Floor level | 0.91 (0.84–0.99) | 0.86 (0.76–0.97) | |||
| Occupancy (per 5 students increase) | NS | NS | NS | NS | |
| Pet owning children (per 5% increase) | NS | NS | |||
| Cat owning children (per 5% increase) | 1.03 (>1.00–1.06) | ||||
| Dog owning children (per 5% increase) | 1.03 (1.01–1.06) | 2.26 (1.22–4.20) | |||
| Higher grade (1 grade increase) | 0.96 (0.93–0.99) | NS | NS | ||
| Socioecononic status | 1.06 (1.03–1.08) | 1.08 (1.04–1.11) | 1.09 (1.05–1.14) | 1.15 (1.08–1.22) | NS |
GMR: Geometric Mean Ratio.
95%CI: 95% Confidence Interval.
In bold are significant univariate associations that are considered in multivariate testing.
Italic: univariate analysis with p<0.20 and considered in multivariate testing.
NS: variables were included in multivariate testing and found to be not significant.
Empty: the variable was not included in the specific multivariate model.