Relationship of estimated glomerular filtration rate with lower urinary tract symptoms/benign prostatic hyperplasia measures in middle-aged men with moderate to severe lower urinary tract symptoms.
OBJECTIVE
To evaluate the relationship of the glomerular filtration rate (GFR) and lower urinary tract symptoms (LUTS)/benign prostatic hyperplasia measures in middle-aged men.


METHODS
A total of 1400 male police officers with moderate and severe LUTS (international prostate symptoms score [IPSS] >7) and aged 40-59 years who had participated in a health examination were included. LUTS/benign prostatic hyperplasia was measured with IPSS, transrectal ultrasonography, uroflowmetry, and postvoid residual urine volume. We estimated the GFR using the Chronic Kidney Disease Epidemiology Collaboration equation. Spearman correlation tests and multiple linear regression tests were used to evaluate the relationship.


RESULTS
The median age was 50.0 years, and the median GFR was 85.3 mL/min/1.73 m(2). The GFR showed a significant positive correlation with the maximal flow rate (Qmax; r = .112; P <.001). However, there was no significant correlation of GFR with IPSS (r = -.018; P = .493), total prostate volume (r = -.032; P = .237), and postvoid residual (r = -.066; P = .051). After adjusting for age, body mass index (BMI), and metabolic syndrome, only Qmax showed a positive correlation with GFR (beta = .114; P = .003).


CONCLUSIONS
Qmax demonstrated a significant correlation with GFR in middle-aged men with moderate to severe LUTS in this study. Our data suggest that improved clinical attention is required for patients with LUTS and a low Qmax.
Department of Urology, National Police Hospital, Seoul, Republic of Korea. Electronic address: sinbnapolee@gmail.com.
Jun Ho
JH
Lee
Hanna
H
Kwon
Yeon Won
YW
Park
In-Chang
IC
Cho
Seung Ki
SK
Min
D000328:Adult; D003430:Cross-Sectional Studies; D005919:Glomerular Filtration Rate; D006801:Humans; D059411:Lower Urinary Tract Symptoms / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D011470:Prostatic Hyperplasia / Q000503:physiopathology*; D014563:Urodynamics