Table 3 Univariate and multivariate odds ratio of asthma control (Partly controlled and uncontrolled combined)* according to asthma risk factors and smoking variables
From: Greater severity of new onset asthma in allergic subjects who smoke: a 10-year longitudinal study
Variables | Univariate Odds Ratio (95% CI) | P value | Multivariate Odds Ratio (95% CI) | P value |
|---|---|---|---|---|
Gender | ||||
Female | 1.00 | |||
Male | 1.19 (0.61-2.32) | P = 0.61 | ||
Age | 1.06 (1.00-1.12) | P = 0.06 | ||
Model 1 (n = 56) | 0.53 (0.16-1.78) | P = 0.30 | 0.53 (0.16-1.81) | P = 0.31 |
Passive Smoking | ||||
Model 2 (n = 140) | ||||
Current or Former | 5.18 (2.47-10.90) | P < 0.0001 | 5.18 (2.43-11.02) | P < 0.0001 |
Smoker | ||||
Model 3 (n = 114) | ||||
Packs per Year | ||||
Never Smoker 0 | 1.00 | 1.00 | ||
1-10 packs 1 | 4.69 (1.55-14.13) | P = 0.006 | 5.51 (1.73-17.54) | P = 0.004 |
>10 packs 2 | 15.03 (5.25-43.03) | P < 0.0001 | 13.38 (4.57-39.19) | P < 0.0001 |
Model 4 (n = 130) | ||||
Smoking Status | ||||
Never Smoker 0 | 1.00 | 1.00 | ||
Former Smoker 1 | 1.64 (0.51-5.30) | P = 0.41 | 1.70 (0.52-5.58) | P = 0.38 |
Current Smoker 2 | 9.46 (4.03-22.24) | P = <0.0001 | 9.54 (3.98-22.88) | P < 0.0001 |