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Prevalence ratio of short-acting β-agonist dispensing before and after the 2003 wildfires
| BMI group | Prevalence ratio (95% CI)a |
|---|---|
| Underweight | 1.10 (0.55–2.20) |
| Normal weight | 1.00 (Reference) |
| Overweight | 1.07 (0.83–1.38) |
| Obese | 1.42 (1.12–1.80) |
Abbreviations: BMI, body mass index; CI, confidence interval.
Significant P value for the trend of .01 (using the Cochran-Armitage trend test).
