Multivariable analysis on the odds of current asthma symptoms stratified by study site; Peru, 2009–2010
| Exposure | Lima (n=725) | Tumbes (n=716) | Mantel–Haenszel OR (95% CI) | Pooled multivariable OR (95% CI) | ||||||
| % Asthma in unexposed | % Asthma in exposed | Unadjusted OR (95% CI) | Multivariable OR (95% CI) | % Asthma in unexposed | % Asthma in exposed | Unadjusted OR (95% CI) | Multivariable OR (95% CI) | |||
| Rhinitis in past 12 months | 7.3% | 25.9% | 4.4 (2.7 to 7.3) | 3.7 (2.2 to 6.5) | 1.4% | 15.1% | 12.1 (5.0 to 30.7) | 11.4 (3.9 to 33.1) | 5.3 (3.5 to 8.1) | 4.8 (3.0 to 7.6) |
| Eczema in past 12 months | 10.1% | 21.1% | 2.4 (1.3 to 4.3) | 2.1 (1.1 to 4.1) | 3.1% | 0.0% | ||||
| Atopy | 6.3% | 16.7% | 3.0 (1.7 to 5.6) | 2.5 (1.4 to 4.5) | 2.3% | 4.5% | 2.0 (0.7 to 5.6) | 1.8 (0.7 to 4.8) | 2.7 (1.7 to 4.4) | 2.2 (1.3 to 3.7) |
| BMI (kg/m2) >25 | 10.4% | 21.7% | 2.4 (1.3 to 4.2) | 2.5 (1.4 to 4.5) | 2.8% | 7.0% | 2.6 (0.6 to 8.5) | 1.3 (0.3 to 5.5) | 2.4 (1.5 to 3.9) | 2.2 (1.3 to 3.8) |
| Income <US$175/month | 10.9% | 13.6% | 1.3 (0.7 to 2.2) | 1.4 (0.7 to 2.5) | 4.9% | 2.0% | 0.4 (0.1 to 1.0) | 0.3 (0.1 to 0.9) | 0.9 (0.6 to 1.5) | 0.9 (0.5 to 1.6) |
| Concrete floor | 11.9% | 11.0% | 0.9 (0.5 to 1.5) | 0.7 (0.4 to 1.2) | 2.2% | 3.8% | 1.7 (0.7 to 5.1) | 1.6 (0.6 to 4.4) | 1.1 (0.7 to 1.6) | 0.8 (0.5 to 1.3) |
| 6+ people/house | 10.8% | 12.4% | 1.2 (0.7 to 1.9) | 1.1 (0.6 to 1.9) | 2.5% | 4.2% | 1.7 (0.6 to 4.3) | 1.2 (0.4 to 3.5) | 1.3 (0.8 to 1.9) | 1.1 (0.7 to 1.8) |
| Maternal primary schooling | 19.0% | 10.0% | 0.7 (0.4 to 1.3) | 0.9 (0.5 to 1.7) | 1.4% | 3.7% | 2.7 (0.8 to 14.3) | 2.2 (0.6 to 8.5) | 0.9 (0.6 to 1.5) | 1.1 (0.6 to 1.9) |
| Wood stove | 11.3% | 14.5% | 1.3 (0.6 to 2.9) | 1.7 (0.7 to 4.0) | 3.1% | 3.1% | 1.0 (0.4 to 2.4) | 2.3 (0.7 to 7.1) | 1.1 (0.6 to 2.0) | 1.6 (0.8 to 3.1) |
| Personal smoke | 12.0% | 15.6% | 1.3 (0.5 to 3.2) | 1.3 (0.5 to 3.5) | 3.6% | 0.0% | ||||
| Secondhand smoke | 12.1% | 9.2% | 0.7 (0.3–1.5) | 0.7 (0.3 to 1.4) | 3.8% | 0.6% | ||||
| Private sanitation | 8.8% | 11.8% | 1.4 (0.5 to 4.6) | 1.9 (0.6 to 6.2) | 2.5% | 4.5% | 1.8 (0.7 to 4.7) | 0.6 (0.2 to 1.9) | 1.6 (0.8 to 3.1) | 1.3 (0.6 to 2.8) |
| 1+ parent from highlands | 11.8% | 11.5% | 1.0 (0.6 to 1.7) | 0.9 (0.5 to 1.8) | 3.6% | 0.0% | ||||
| Peri-urban environment | 2.6 (1.3 to 5.2) | |||||||||
All variables included in each of the multivariable models are listed under the exposure column.
BMI, body mass index.