Genotypes Alleles
  CC
N (%)
CT
N (%)
TT
N (%)
C
N (%)
T
N (%)
Family history  
Positive (54 ) 7 (13%) 38 (70.4%) 9 (16.7%) 52/108 (48.1%) 56/108 (51.8%)
Control (20) 4 (20%) 14 (70%) 2 (10%) 22/40 (55%) 18/40 (45%)
P 0.45 0.9 0.4 0.4 0.4
OR,(95%CI) 0.59
(0.15-2.3)
1.01
(0.3-3.1)
1.8
(0.3-9.1)
0.76
(0.3-1.6)
1.3
(0.6-2.7)
Allergic rhinitis  
Positive (39 ) 3 (7.7%) 28 (71.8%) 8 (20.5%) 34/78(43.5%) 44/78(56.4%)
Control (20) 4 (20%) 14 (70%) 2 (10%) 22/40 (55%) 18/40 (45%)
P 0.2 0.8 0.3 0.24 0.24
OR,(95%CI) 0.3
(0.06-1.6)
1.1
(0.3-3.5)
2.3
(0.4-12.1)
0.6
(0.3-1.4)
1.6
(0.7-3.4)
Eczema  
Positive (21) 2 (9.5%) 15 (71.4%) 4 (19%) 19/42(45.2%) 23/42 (54.7%)
Control (20) 4 (20%) 14 (70%) 2 (10%) 22/40 (55%) 18/40 (45%)
P 0.3 0.9 0.4 0.37 0.37
OR,(95%CI) 0.4
(0.06-2.6)
1.1
(0.3-4.1)
2.1
(0.3-13)
0.67
(0.3-1.6)
1.4
(0.6-3.5)
Allergic march
Positive (17) 1 (5.9%) 12 (70.6%) 4 (23.5%) 14/34(41.2%) 20/34 (58.8%)
Control (20) 4 (20%) 14 (70%) 2 (10%) 22/40 (55%) 18/40 (45%)
P 0.2 0.9 0.3 0.23 0.23
OR,(95%CI) 0.25
(0.02-2.4)
1.02
(0.2-4.2)
2.7
(0.4-17.4)
0.57
(0.2-1.4)
1.7
(0.7-4.4)
Parental smoking
Positive (38) 4 (10.5%) 26 (68.4%) 8 (21.1%) 34/76(44.7%) 42/76 (55.3%)
Control (20) 4 (20%) 14 (70%) 2 (10%) 22/40 (55%) 18/40 (45%)
P 0.3 0.9 0.3 0.3 0.3
OR,(95%CI) 0.47
(0.1-2.1)
0.9
(0.3-3)
2.4
(0.4-12.5)
0.6
(0.3-1.4)
1.5
(0.7-3.2)
Significance using fisher's exact test *Statistical significance was defined as P ≤ 0.05.
Table 5: Frequency of IL-4 C-590T genotype and allelic polymorphisms among asthmatic cases compared to controls with their statistical significance.