Table 2: Association of serum cotinine levels with rhinitis in 1,315 study participants, stratified by allergic sensitization*.

From: Exposure to tobacco smoke and childhood rhinitis: a population-based study

 No. (%)Crude OR (95% CI)PAdjusted OR (95% CI)P
Children without allergic sensitization (N = 562)
 Rhinitis ever143 (25.6)4.19 (0.85–20.55)0.084.64 (0.86–24.32)0.07
 Current rhinitis122 (22.0)6.23 (1.17–33.20)0.036.76 (1.21–37.74)0.03
 Physician-diagnosed rhinitis126 (22.8)1.69 (0.34–8.37)0.521.63 (0.31–8.61)0.56
Children with allergic sensitization (N = 749)
 Rhinitis ever426 (57.3)1.20 (0.42–3.42)0.731.53 (0.50–4.70)0.45
 Current rhinitis403 (54.7)1.01 (0.36–2.84)0.991.18 (0.40–3.48)0.76
 Physician-diagnosed rhinitis356 (48.8)1.59 (0.50–5.03)0.431.81 (0.55–6.00)0.33
  1. OR, odds ratio; CI, confidence interval.
  2. *Serum cotinine levels were log10-transformed and treated as a continuous variable. P-values less than 0.05 are in bold. Four subjects had missing data on allergic sensitization.
  3. Adjusted covariates included age, gender, and body mass index.