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Table 1 Risk factors for hospitalization over longitudinal follow-up: demographic characteristics and smoking

From: Risk factors for hospitalization among adults with asthma: the influence of sociodemographic factors and asthma severity

Risk factor

Baseline interview (mean [SD] or n [%])

Risk of hospitalization at 18 months (OR [95% CI])

Age (per 10 years)

40.5 (7.3)

1.0 (0.6–1.7)

Female gender

177 (73%)

1.1 (0.5–2.4)

Non-white race/ethnicity

71 (29%)

2.1 (1.1–4.0)

Education (years)

14.9 (2.5)

0.8 (0.70–0.96)

Household income*

45,000

1.3 (1.1–1.5)

Married or cohabitating

160 (66%)

1.0 (0.5–2.1)

Current cigarette smoking

18 (7%)

2.1 (0.7–6.4)

Past cigarette smoking

87 (36%)

1.3 (0.6–2.6)

  1. Bivariate analysis (n = 242). *Median household income (25th–75th interquartile range, $25,000–$62,500); odds ratio per $10,000 decrement.