From: Asthma prevalence among 16- to 18-year-old adolescents in Saudi Arabia using the ISAAC questionnaire
 | Rhinitis symptoms | Hay fever | ||||||
---|---|---|---|---|---|---|---|---|
 | Prevalence No. (%) | Pvalue | Odds Ratio | Confidence interval | Prevalence No. (%) | Pvalue | Odds Ratio | Confidence interval |
Lifetime wheeze | 476 (61.1%) | < .001 | 2.5 | 2.1-3.0 | 262 (33.6%) | < .001 | 2.4 | 2.0-2.9 |
Physician-diagnosed asthma | 361 (59.9%) | < .001 | 2.2 | 1.8-2.6 | 207 (34.3%) | < .001 | 2.3 | 1.9, 2.8 |
Exercise-induced wheeze | 357 (57.4%) | < .001 | 1.9 | 1.6, 2.3 | 203 (32.6%) | < .001 | 2.1 | 1.7, 2.6 |