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Related Experiment Video

Updated: May 7, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Published on: May 30, 2025

A Quality Analysis of Randomized Controlled Trials about Erectile Dysfunction.

Jae Hoon Chung¹, Jeong Woo Lee, Jung Ki Jo

¹Department of Urology, Hanyang University College of Medicine, Seoul, Korea.

The World Journal of Men'S Health

|September 18, 2013

Summary

Clinical trial quality is crucial for reliable results. This study assessed Korean erectile dysfunction trials, finding high overall quality but weaknesses in randomization and allocation concealment.

Keywords:

Erectile dysfunction Journal article Randomized controlled trial

Related Experiment Videos

Last Updated: May 7, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Published on: May 30, 2025

Area of Science:

Medical research methodology
Clinical trial quality assessment

Background:

Low-quality clinical trials can introduce errors, potentially distorting results.
Accurate clinical trial results are essential for effective patient care.
Quality analysis of clinical trials is necessary to prevent the application of flawed data.

Purpose of the Study:

To evaluate the quality of randomized controlled trials (RCTs) on erectile dysfunction (ED) conducted in Korea.
To identify specific areas of strength and weakness in the methodological quality of these trials.

Main Methods:

Systematic selection of RCTs on ED from Korean medical literature (Medline, KoreaMed).
Quality assessment using Jadad scales, van Tulder scale, and Cochrane Collaboration Risk of Bias Tool (CCRBT).

Main Results:

Twenty RCTs on ED were published in Korea since 2002.
Most trials (17/20 on Jadad, 19/20 on VTS) were assessed as high quality.
Only 1 RCT had a low risk of bias (CCRBT), with significant deficiencies in randomization (2/20) and allocation concealment (1/20).

Conclusions:

While many Korean ED RCTs employ double-blinding, methodological quality is compromised by inadequate randomization and allocation concealment.
Improving randomization methods and reporting allocation concealment can enhance the reliability of clinical trial findings.
Rigorous quality assessment is vital for ensuring the clinical applicability of research outcomes.