Cough group (n=20) Shortness of breath group (n=30) Cough and shortness of breath group (n=32) P value
Age in years 9.6 ± 1.6 10.2 ± 2.3 9.6 ±1.9 0.8
Duration of asthma in years 4.9±3.5 6.1±3.4 4.9±4 0.07
Sex
Male 16(80%) 16(53.3%) 20 (62.5%) 0.45
Female 4(20%) 14(46.7%) 12(37.5%)  
Residence        
Rural 16(80%) 20(66.7%) 25(78%) 0.28
Urban 4(20%) 10(33.3%) 7(22%)  
Family history
Positive 14(70%) 22(73.3%) 19(59.4%) 0.61
Negative 6(30%) 8(26.7%) 13(40.6%)  
Allergic rhinitis
Positive 7(35%) 16(53.3%) 17(53%) 0.44
Negative 13(65%) 14(46.7%) 15(47%)  
Atopic dermatitis
Positive 4(20%) 7(23.3%) 10(31%) 0.64
Negative 16(80%) 23(76.7%) 22(69%)  
Parental smoking
Positive 10(50%) 14(46.7%) 15(47%) 0.7
Negative 10(50%) 16(53.3%) 17(53%)  
Consanguinity
Positive 6(30%) 10(33.3%) 9 (28%) 0.36
Negative 14(70%) 20(66.6%) 23(72%)  
n=number of subjects. Data are expressed as mean ± standard deviation or number (percentage of total). P value assessed via one way ANOVA and Chi-square with Fisher's Exact for continuity correction. *Statistical significance was defined as P ≤ 0.05.
Table 2: Clinical characteristics of the studied asthmatic groups.