Longitudinal analysis of ETS exposure and health care utilization at 18 month follow up
| Emergency department visits | Hospital admissions | |||
|---|---|---|---|---|
| ETS exposure measurement | OR (95% CI)* | Multivariate† OR (95% CI) | OR (95% CI)* | Multivariate† OR (95% CI) |
| *Logistic regression analysis to evaluate impact of baseline exposure on outcome at 18 months, controlling for baseline severity of asthma. | ||||
| †Logistic regression analysis controlling for baseline severity of asthma score and additional covariates: age, sex, income, educational attainment. | ||||
| ‡Reported eye or nose irritation after ETS exposure, past 7 days | ||||
| Baseline exposure: any v none | ||||
| None | – | – | – | – |
| Any exposure, past 7 days | 3.1 (1.4 to 6.8) | 2.8 (1.2 to 6.4) | 4.2 (1.03 to 16.8) | 6.6 (1.3 to 33) |
| Baseline exposure, past 7 days | ||||
| None | – | – | – | – |
| Lower exposure (1–2 h/week) | 2.6 (1.02 to 6.8) | 2.5 (0.93 to 6.6) | 3.6 (0.7 to 19) | 4.6 (0.7 to 40) |
| Higher exposure (≥3 h/week) | 3.9 (1.4 to 11.3) | 3.4 (1.1 to 10.3) | 5.2 (0.8 to 34) | 12.2 (1.5 to 102) |
| Baseline ETS related sensory irritation‡ | ||||
| None | – | – | – | – |
| Any eye or nose irritation | 3.0 (1.3 to 7.3) | 2.7 (1.1 to 6.6) | 2.1 (0.4 to 10.3) | 2.4 (0.4 to 13.1) |