Association of interleukin-4 polymorphism with diabetic retinopathy and neuropathy in a Sudanese population

Bulletin of the National Research Centre

Table 3 Distribution of interleukin-4 genotypes in Sudanese patients with type 2 diabetes mellitus and risk analysis of developing diabetic retinopathy

Genotypes	Presence of retinopathy, n (%)	Absence of retinopathy, n (%)	X²	OR (95% CI)	P value
B2B2	19 (38.8%)	39 (59.0%)		1 Reference
B1B1	17 (34.7%)	10 (15.2%)	3.489	1.381 (1.344 –9.062)	0.011
B1B2	13 (26.5%)	17 (25.8%)	0.956	1.570 (0.654 –3.887)	0.357
Total	49	66	115

Comparisons were performed by the Chi-squared test
Significant differences between groups (P < 0.05). OR, odds ratio; CI, confidence interval