Table 2.
Multinomial models of factors associated with frequent emergency department (ED) visits for asthma exacerbation
| 2 (vs 1) ED visits |
≥3 (vs 1) ED visits |
|||
|---|---|---|---|---|
| Variables | Risk ratio (95% CI) | p Value | Risk ratio (95% CI) | p Value |
| Age, years | ||||
| 18–29 | 1 (reference) | 1 (reference) | ||
| 30–39 | 0.76 (0.39 to 1.48) | 0.43 | 0.81 (0.41 to 1.60) | 0.55 |
| 40–54 | 0.73 (0.39 to 1.39) | 0.34 | 0.86 (0.46 to 1.61) | 0.64 |
| Male sex | 0.67 (0.38 to 1.19) | 0.17 | 0.74 (0.43 to 1.29) | 0.29 |
| Current smoker | 1.91 (1.01 to 3.58) | 0.04 | 1.86 (0.97 to 3.57) | 0.06 |
| History of hospital admission for asthma | 3.06 (1.72 to 5.45) | <0.001 | 4.77 (2.73 to 8.32) | <0.001 |
| History of intubation for asthma | 0.36 (0.04 to 3.15) | 0.36 | 1.19 (0.37 to 3.84) | 0.29 |
| Current use of inhaled corticosteroids | 2.03 (1.10 to 3.74) | 0.02 | 2.10 (1.17 to 3.79) | 0.01 |
| Current use of oral xanthines | 0.79 (0.30 to 2.06) | 0.63 | 1.75 (0.85 to 3.56) | 0.13 |
| Current use of leukotriene modifiers | 1.39 (0.57 to 3.37) | 0.47 | 2.63 (1.31 to 5.28) | 0.01 |
Bold results are statistically significant.