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

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

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