Table 3: Distribution of allele and genotype frequencies of IL-1 Ra VNTR polymorphism in children with ITP and controls.

ITP children
(%)
Controls
(%)
OR95% CIP value

Genotype frequency 0.295
 I/I16 (50)44 (68.75)0.40#0.15–0.98
 I/II14 (43.75) 15 (23.44)2.54§1.03–6.30 0.043*#
2.60#1.02–6.50
 II/II 2 (6.25) 2 (3.13)
 III/III 0 (0) 0 (0)
 I/III 0 (0) 1 (1.56)
 I/IV 0 (0) 1 (1.56)
 II/IV 0 (0) 1 (1.56)
Allelic frequency 0.042*
 Allele I46 (71.9)103 (84.43)0.47 0.23–0.98
 Allele II18 (28.1) 19 (15.57)2.121.02–4.41

* .
Alleles from genotypes I/I, I/II, and II/II.
#Genotype I/I versus genotype I/II.
§Genotype I/II versus all genotypes.