Table 5.
Odds Ratios (OR) and 95% confidence intervals (CIs) of allergic outcomes associated with cumulative CO exposure (ppm-year).
| Model 1 | Model 2 | Model 3 | |
|---|---|---|---|
| Positive SPT result | |||
| D. farina | 0.98 (0.90, 1.06) | 0.96 (0.87, 1.05) | 0.96 (0.86, 1.05) |
| D. pteronyssinus | 0.95 (0.81, 1.08) | 0.98 (0.83, 1.12) | 0.99 (0.83, 1.12) |
| Cockroach | 0.96 (0.90, 1.02) | 0.97 (0.91, 1.04) | 0.97 (0.91, 1.04) |
| Dog | 1.01 (0.78, 1.19) | 1.02 (0.76, 1.25) | 1.04 (0.77, 1.30) |
| Cat | 1.00 (0.80, 1.16) | 1.00 (0.77, 1.22) | 1.00 (0.76, 1.22) |
| Asthma symptoms | |||
| Any wheezing episode | 0.94 (0.84, 1.04) | 0.98 (087, 1.10) | 0.99 (0.87, 1.10) |
| Exercise-induced wheezing | 0.99 (0.85, 1.12) | 1.07 (0.90, 1.23) | 1.06 (0.89, 1.22) |
| Cough | 0.96 (0.90, 1.02) | 0.99 (0.92, 1.06) | 0.99 (0.92, 1.07) |
| Rhinitis symptoms | |||
| Sneezing, congestion, or rhinorrhea | 1.05 (0.99, 1.11) | 1.10 (1.02, 1.18) | 1.09 (1.02, 1.18) |
| Allergic conjunctivitis symptoms | |||
| Itchy or watery eyes | 1.07 (0.99, 1.14) | 1.12 (1.03, 1.22) | 1.11 (1.02, 1.21) |
| Eczema symptoms | 0.98 (0.89, 1.06) | 1.02 (0.92, 1.11) | 1.02 (0.92, 1.12) |
Note: Model 1 is unadjusted; model 2 adjusted for age, sex, second-hand smoke, number of children in the family, average weekly temascal use time of the child, kitchen location and type, maternal asthma, maternal rhinitis, maternal eczema, numbers and species of animals owned; model 3 adjusted for maternal and paternal education, SES (land-owning, house-owning and number of major assets) in addition to covariates in model 2. Number of children included in the analysis is 525 for all models.