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Table 3 Correlations between clinical parameters among all studied subjects

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

  Age Rt VA Lt VA Rt IOP Lt IOP Rt C/D Lt C/D Rt MD Lt MD
Age   r = − 0.473*
P = 0.001
r = − 0.435*
P = 0.001
r = 0.101
P = 0.318
r = 0.150
P = 0.136
r = 0.448*
P = 0.001
r = 0.283*
P = 0.004
r = − 0.270
P = 0.066
r = − 0.182
P = 0.220
Rt VA r = − 0.473*
P = 0.001
  r = 0.726*
P = 0.001
r = − 0.153
P = 0.130
r = − 0.212*
P = 0.034
r = − 0.404*
P = 0.001
r = − 0.253*
P = 0.011
r = 0.432
P = 0.002
r = 0.271
P = 0.066
Lt VA r = − 0.435*
P = 0.001
r = 0.726*
P = 0.001
  r = − 0.154
P = 0.125
r = − 0.258*
P = 0.009
r = − 0.267*
P = 0.007
r = − 0.183
P = 0.068
r = 0.194
P = 0.191
r = 0.301
P = 0.040
Rt IOP r = 0.101
P = 0.318
r = − 0.153
P = 0.130
r = − 0.154
P = 0.125
  r = 0.621*
P = 0.001
r = 0.086
P = 0.394
r = 0.132
P = 0.192
r = 0.159
P = 0.286
r = 0.094
P = 0.528
Lt IOP r = 0.150
P = 0.136
r = − 0.212*
P = 0.034
r = − 0.258*
P = 0.009
r = 0.621*
P = 0.001
  r = 0.044
P = 0.665
r = 0.125
P = 0.215
r = 0.104
P = 0.488
r = − 0.008
P = 0.957
Rt C/D r = 0.448*
P = 0.001
r = − 0.404*
P = 0.001
r = − 0.267*
P = 0.007
r = 0.086
P = 0.394
r = 0.044
P = 0.665
  r = 0.717*
P = 0.001
r = − 0.053
P = 0.725
r = 0.151
P = 0.311
Lt C/D r = 0.283*
P = 0.004
r = − 0.253*
P = 0.011
r = − 0.183
P = 0.068
r = 0.132
P = 0.192
r = 0.125
P = 0.215
r = 0.717*
P = 0.001
  r = 0.131
P = 0.380
r = − 0.023
P = 0.876
Rt MD r = − 0.270
P = 0.066
r = 0.432
P = 0.002
r = 0.194
P = 0.191
r = 0.159
P = 0.286
r = 0.104
P = 0.488
r = − 0.053
P = 0.725
r = 0.131
P = 0.380
  r = 0.729*
P = 0.001
Lt MD r = − 0.182
P = 0.220
r = 0.271
P = 0.066
r = 0.301
P = 0.040
r = 0.094
P = 0.528
r = − 0.008
P = 0.957
r = 0.151
P = 0.311
r = − 0.023
P = 0.876
r = 0.729*
P = 0.001
 
  1. Rt VA right visual acuity, Lt VA left visual acuity, Rt IOP right intraocular pressure, Lt IOP left intraocular pressure, Rt C/D right cub to disc ratio, Lt C/D left cub to disc ratio, Rt MD right mean deviation, Lt MD left mean deviation
  2. *Correlation is significant at the 0.05 level