Table 4.

Correlation between various VPSS and IPSS parameters recorded in the study.

Group	Correlation coefficient (r)	P
IPSS total vs. VPSS total	0.7235	<0.0001
IPSS total vs. Qmax	−0.6287	<0.0001
VPSS total vs. Qmax	−0.5782	<0.0001
IPSS total vs. Qavg	−0.479	<0.0001
VPSS total vs. Qavg	−0.5	<0.0001
VPSS total vs. VPSS Qol	0.70753	<0.0001
IPSS total vs. IPSS Qol	0.65583	<0.0001
IPSS Qol vs. VPSS Qol	0.84093	<0.0001
Frequency: VPSS Q1 vs. IPSS Q2	0.5083	<0.0001
Nocturia: VPSS Q2 vs. IPSS Q7	0.88558	<0.0001
Poor stream: VPSS Q3 vs. IPSS Q5	0.76122	<0.0001
Poor stream: IPSS Q5 vs. Qmax	−0.7134	<0.0001
Poor stream: VPSS Q3 vs. Qmax	−0.7533	<0.0001

IPSS, International Prostate Symptom Score; VPSS, Visual Prostate Symptom Score.