World Journal of Urology

, Volume 31, Issue 6, pp 1463–1468 | Cite as

Clinical features of supervoiders who suffer from lower urinary tract symptoms: a propensity score-matching study

  • Joo Yong Lee
  • Yoon Soo Hah
  • Dae Hun Lee
  • Woo Jin Bang
  • Won Sik Ham
  • Seung Wook Lee
  • Kang Su Cho
Original Article



To evaluate the clinical characteristics of patients with maximal urine flow rate (Q max) ≥ 25 ml/s complaining of lower urinary tract symptoms (LUTS), using propensity score-matching analysis to compare with the control group.


Medical records from a prospectively maintained database for first visit male patients with LUTS/benign prostatic hyperplasia between 2010 and 2012 were used to select 818 patients. Of these patients, 68 men with Q max ≥ 25 ml/s were defined as the supervoider group, and 68 patients were selected for the control group using propensity scores, which were calculated for each patient using multivariable logistic regression model based on the following covariates: age, prostate volume, voided urine volume, and post-voided residual volume. International Prostate Symptom Score (IPSS), quality of life score, and Overactive Bladder Symptom Score (OABSS) were also analyzed.


Mean Q max was 30.82 ± 5.13 in supervoiders and 15.95 ± 4.88 ml/s in controls (p < 0.001). There were statistical differences in IPSS between supervoiders and controls (12.63 ± 5.81 vs. 16.13 ± 6.90; p = 0.002). Although the IPSS voiding symptom sub-score in supervoiders was lower than controls (5.09 ± 3.35 vs. 7.40 ± 4.00; p < 0.001), there were no significant differences in storage symptom and post-micturitional symptom sub-scores. In OABSS and subdomain scores for frequency, nocturia, and urgency, there were no significant differences between the groups. However, the urge incontinence subdomain score was significantly higher in supervoiders versus controls (0.69 ± 1.26 vs. 0.18 ± 0.52; p = 0.003).


Supervoiders experience comparable levels of storage and post-micturition symptoms, but display more severe urge incontinence despite milder voiding symptoms and better uroflowmetric measurements than propensity score-matched controls.


Lower urinary tract symptoms Urinary bladder Overactive Urinary incontinence Urge 


Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Joo Yong Lee
    • 1
  • Yoon Soo Hah
    • 1
  • Dae Hun Lee
    • 1
  • Woo Jin Bang
    • 2
  • Won Sik Ham
    • 1
  • Seung Wook Lee
    • 3
  • Kang Su Cho
    • 1
  1. 1.Department of Urology, Severance Hospital, Urological Science InstituteYonsei University College of MedicineSeoulKorea
  2. 2.Department of UrologyHallym University College of MedicineChuncheonKorea
  3. 3.Department of UrologyHanyang University College of MedicineSeoulKorea

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