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Table 2 Association between sex, MD of visual field with grades, and BDNF genotypes frequency in glaucoma group only

From: Brain-derived neurotrophic factor (BDNF) gene polymorphism in a cohort of Egyptian primary open-angle glaucoma (POAG) patients

  Glaucoma group, n = 50 P value
TT (n = 9) TC (n = 30) CC (n = 11)  
Sex Male (n = 21) 2 (22) 13 (43) 6 (55)  
Female (n = 29) 7 (78) 17 (56) 5 (46) 0.337
Rt mean deviation grade, n (%)     
 Mild, 0 to − 6 3 (33) 10 (33) 5 (46) 0.894
 Moderate, − 6 to − 12 2 (22) 4 (13) 2 (18)
 Severe, ≥ − 12 4 (45) 14 (47) 4 (36)
 Blindness, optic atrophy 0 (0) 2 (7) 0 (0)
Lt mean deviation grade, n (%)     0.805
 Mild, 0 to − 6 5 (56) 12 (40) 5 (46)
 Moderate, − 6 to − 12 0 (0) 4 (13) 2 (18)
 Severe, ≥ − 12 3 (33) 12 (40) 4 (36)
 Blindness, optic atrophy 1 (11) 2 (7) 0 (0)