Table 2 Univariate and multivariable analysis of primary outcome at baseline
Univariate model | Multivariable model | |||
|---|---|---|---|---|
Odds ratio (95% CI) | P value | Odds ratio (95% CI) | P value | |
Age (per year) | 0.99 (0.99–1.00) | 0.021 | 1.00 (0.99–1.00) | 0.113 |
Race | ||||
Malay versus Chinese | 1.38 (0.98–1.94) | 0.265 | 1.36 (0.95–1.94) | 0.095 |
Indian versus Chinese | 1.08 (0.74–1.60) | 0.696 | 1.06 (0.71–1.57) | 0.693 |
Others versus Chinese | 1.94 (1.07–3.72) | 0.035 | 1.93 (1.04–3.74) | 0.042 |
Written action plan | ||||
Been on plan versus No | 0.49 (0.35–0.68) | <0.001 | 0.49 (0.35–0.68) | <0.001 |
Updated versus No | 0.38 (0.25–0.57) | <0.001 | 0.37 (0.25–0.56) | <0.001 |
Cigarette smoking | ||||
Ex versus Current | 0.75 (0.38–1.44) | 0.385 | 0.74 (0.37–1.45) | 0.384 |
Never versus Current | 0.63 (0.36–1.07) | 0.098 | 0.60 (0.34–1.04) | 0.076 |
Allergic Rhinitis (Yes versus No) | 1.03 (0.78–1.37) | 0.845 | ||
Allergic Conjunctivitis (Yes versus No) | 0.79 (0.37–1.70) | 0.535 | ||
Eczema (Yes versus No) | 1.28 (0.80–2.10) | 0.317 | ||
Gender (Male versus Female) | 1.10 (0.85–1.44) | 0.460 | ||
Smoke as a trigger | ||||
Yes versus No | 1.00 (0.36–3.03) | 0.993 | ||
Unknown versus No | 0.93 (0.71–1.21) | 0.581 | ||
