TABLE 3—
Trigger Reduction Behaviors: Baseline and Exit Values and Comparison of Baseline-to-Exit Changes
| High-Intensity Group (n = 110) | Low-Intensity Group (n = 104) | Comparison of Baseline-Exit Changes Across Groups | |||||||
| Base | Exit | P | Base | Exit | P | GEE Coefficient (95% CI)a | Odds Ratio (95% CI) | Pb | |
| Vacuum child’s bedroom at least twice/2 weeksc | 63.9 | 78.7 | ** | 62.5 | 64.4 | 0.73 (0.12, 1.35) | 2.08 (1.12, 3.84) | .020 | |
| Dust child’s bedroom at least twice/2 weeksc | 63.9 | 70.4 | 69.2 | 66.3 | 0.42 (−0.29, 1.13) | 1.52 (0.75, 3.08) | .250 | ||
| Vacuum cloth-covered furniture at least twice/2 weeks or remove itc | 35.5 | 64.5 | ** | 26.2 | 36.9 | * | 0.75 (0.03, 1.46) | 2.11 (1.03, 4.31) | .041 |
| Use doormat or remove shoesc | 67.3 | 88.1 | ** | 70.6 | 77.5 | 0.93 (0.12, 1.75) | 2.54 (1.13, 5.74) | .025 | |
| Use allergy control covers on mattress and pillowsc | 5.7 | 85.9 | ** | 7.8 | 71.8 | ** | 1.17 (.07, 2.28) | 3.24 (1.07, 9.77) | .037 |
| Wash sheets weekly and use hot wash or rinsec | 47.3 | 41.8 | 42.3 | 42.3 | .26 (−0.42, 0.95) | 1.30 (0.66, 2.58) | .452 | ||
| No pet in the homec | 81.5 | 81.5 | 77.9 | 75.0 | 0.10 (−0.40, 0.59) | 1.10 (0.67, 1.81) | .699 | ||
| No pet in child’s bedroom | 93.5 | 93.5 | 91.4 | 87.5 | 0.53 (−0.3, 1.36) | 1.70 (0.74, 3.91) | .210 | ||
| Caregiver does not smoke | 78.9 | 83.5 | 74.0 | 72.1 | 0.40 (−0.1, 0.9) | 1.49 (0.38, 2.45) | .115 | ||
| No smoking allowed in the homec | 80.0 | 77.3 | 76.0 | 79.8 | −0.38 (−1.15, 0.38) | 0.68 (0.32, 1.47) | .328 | ||
| Working bath exhaust fan present and usedc | 55.5 | 73.3 | ** | 68.1 | 68.1 | 0.71 (−0.07, 1.5) | 2.04 (0.93, 4.48) | .074 | |
| Working kitchen exhaust fan present and usedc | 70.9 | 67.3 | 54.8 | 70.2 | ** | −0.8 (−1.44, −0.17) | 0.45 (0.23, 0.84) | .013 | |
| Behavior summary score | 6.5 | 8.0 | ** | 6.4 | 7.3 | ** | 0.41 (−0.13, 0.95) | .141 | |
Note. All values are percentages of group unless otherwise indicated, except the behavior summary score.
aGEE coefficient refers to the coefficient of the group x time interaction term in the GEE model, and represents (high-intensity group exit-to-baseline mean change) – (low-intensity group exit-to-baseline mean change) for continuous variables and the log (exit-to-baseline odds ratio high-intensity group/exit-to-baseline odds ratio low-intensity group) for binary variables. A positive coefficient value indicates greater benefit in the high-intensity group.
bP refers to the significance level of the difference across groups, adjusted for baseline differences and within-group correlation
cItems included in the behavior summary score.
*P < .05; **P < .01 (within-group comparison of baseline and exit values using the Wilcoxon matched-pairs test or the McNemar test).