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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

  Boys Girls All  
  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
    
   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     
   ≤ 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