Table 2 Association between gender and perennial asthma: bivariate logistic regression models adjusted for relevant covariates

*Age at baseline (years)

n = 335

0.556 [0.252–1.227]

0.988 [0.965–1.011]

*Presence of comorbidity at baseline (no vs yes)

n = 335

0.550 [0.249–1.213]

0.705 [0.352–1.414]

*Asthma duration at baseline (years)

n = 325

0.541 [0.244–1.199]

0.986 [0.965–1.009]

*Age at diagnosis (years)

n = 325

0.558 [0.253–1.232]

1.001 [0.981–1.021]

*N° exacerbations (0 vs ≥ 1)

n = 308

0.362 [0.143–0.918]

0.470 [0.176–1.258]

*IgE serum level at baseline (IU/mL)

n = 238

0.301 [0.085–1.063]

1.002 [1.000–1.003]

*Smoke (Current/former vs no smoker)

n = 335

0.564 [0.256–1.244]

1.425 [0.599–3.394]

*ACQ score (< 4 vs ≥ 4)

n = 318

0.534 [0.233–1.227]

0.845 [0.243–2.947]