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Table 2 Pearson correlation coefficients (r) between Qmax, Qmax grades, IPSS, PVR and PUA, TPV, TZV, TZI, IPP, AFMS distance

From: Evaluation of different MRI parameters in benign prostatic hyperplasia-induced bladder outlet obstruction

  PUA TPV TZV TZI IPP AFMS distance
Q max r − 0.094 − 0.420 − 0.408 0.446 − 0.415 − 0.286
p 0.5964 0.0133* 0.0167* 0.01605* 0.0147* 0.1010
Qmax grades r 0.157 0.523 0.554 − 0.511 0.437 0.289
p 0.3750 0.0015* 0.0007* 0.02317* 0.0098* 0.0971
IPSS r 0.209 0.590 0.617 − 0.551 0.543 0.379
p 0.2360 0.0002* 0.0001* 0.01513* 0.0009* 0.0272*
PVR r 0.367 0.569 0.531 − 0.576 0.694 0.381
p 0.0328* 0.0004* 0.0012* 0.01146* < 0.0001* 0.0261*
  1. PUA prostatic urethral angle; TPV total prostate volume; TZV transition zone volume; TZI transition zone index; IPP intravesical prostatic protrusion; AFMS anterior fibromuscular stroma; Qmax maximum flow rate; PVR postvoid residual urine; IPSS International Prostate Symptom Score
  2. Statistical significance (p values with asterisk) was considered at the critical level of 0.05