Table 2 The prevalence of wheeze and associated symptoms in the study group
From: Asthma prevalence among 16- to 18-year-old adolescents in Saudi Arabia using the ISAAC questionnaire
| Â | Boys | Girls | All | Â |
|---|---|---|---|---|
| Â | No. (%) | No. (%) | No. (%) | Pvalue |
Lifetime wheeze | 398 (26.5%) | 381 (24.3%) | 779 (25.3%) | 0.165 |
Wheeze in the past 12 months | 305 (20.3%) | 265 (16.9%) | 570 (18.5%) | 0.016 |
Physician-diagnosed asthma | 324 (21.5%) | 279 (17.8%) | 603 (19.6%) | < 0.009 |
Number of wheezing attacks in the past 12 months | Â | Â | Â | Â |
   1-3 | 270 (64.9) | 227 (70) | 499 (67.3) |  |
   4-12 | 81 (19.5) | 67 (20.6) | 148 (19.9) | 0.003 |
   > 12 | 65 (15.6) | 30 (9.3) | 95 (12.8) |  |
Sleep disturbances due to wheeze | Â | Â | Â | Â |
   ≤ Nights/week | 444 (88.7%) | 425 (90.0%) | 869 (89.3%) |  |
   > Nights/week | 57 (11.4%) | 47 (10.0%) | 104 (10.7%) | 0.715 |
Speech-limiting wheeze | 120 (28.5%) | 139 (42.5%) | 259 (34.6%) | < 0.001 |
Exercise-induced wheeze | 340 (22.6%) | 282 (18.0%) | 622 (20.2%) | < 0.001 |
Night cough in the past 12 months | 301 (38.1%) | 488 (31.1%) | 789 (25.7%) | < 0.001 |