Genotype    T2DM patients Health controls P value
  N = 402 (frequency) N = 171 (frequency)  
PTPRD rs17584499      
CC 305 (75.9%) 139 (81.3%)  
CT 90 (22.4%) 32 (18.7%)  
TT 7 (1.7%) 0 (0.0%) 0.123
Alleles      
C 700 (87.1%) 310 (90.6%)  
T 104 (12.9%) 32 (9.4%) 0.087
Table 2: Comparison of allelic frequencies of PTPRD rs17584499 C/T polymorphism between T2DM patients and healthy controls