Clinical Report: Development and Internal Validation of a Screening Tool for Chronic Prostatitis
Overview
Chronic prostatitis (CP) is a prevalent condition significantly impairing quality of life, yet its diagnosis remains challenging due to the lack of definitive diagnostic methods. This study developed and internally validated a self-checkable screening instrument (S-CP) based on three symptom domains to identify men with CP in the general population, facilitating earlier medical consultation.
Background
Chronic prostatitis/chronic pelvic pain syndrome (CP) affects 1.8–9.7% of men and causes considerable pelvic pain and urinary symptoms. Diagnosis is complex, relying on exclusion by experienced urologists, leading to underdiagnosis and undertreatment. Existing tools like the NIH-Chronic Prostatitis Symptom Index measure symptom severity but are not designed for screening. Therefore, a simple, self-administered screening tool is needed to improve detection and encourage timely urological consultation.
Data Highlights
The study surveyed 5,000 Japanese men aged 20 to 84 years using quota sampling to represent the general population. Participants reporting a prior CP diagnosis were classified as having CP. The screening tool (S-CP) was developed by an expert panel selecting 16 items across three domains: pain/discomfort area, accompanying symptoms, and symptom flare triggers. Logistic regression using these domains predicted CP prevalence, with model performance assessed by the area under the curve (AUC).
Key Findings
CP prevalence was identified based on self-reported prior diagnosis in a large, representative sample of Japanese men.
The S-CP screening tool comprises three domains: (1) pain/discomfort area, (2) accompanying symptoms, and (3) triggers for symptom flares.
Each domain includes multiple specific items, with domain positivity defined by the presence of at least one item.
Logistic regression using these three dichotomous domain variables effectively predicted CP prevalence.
The tool is designed for self-administration to facilitate early identification and encourage medical consultation.
Clinical Implications
The S-CP provides a practical, easy-to-use screening instrument for chronic prostatitis that can be self-administered by men in the general population. Its use may help identify undiagnosed cases, enabling earlier referral to urologists and potentially improving patient outcomes. Clinicians should consider incorporating such screening tools in primary care to address the diagnostic challenges of CP.
Conclusion
The development and internal validation of the S-CP screening tool represent a significant step toward improving chronic prostatitis detection in the general population. This tool may enhance diagnostic opportunities and facilitate timely treatment for affected individuals.
References
Nishimura et al. 2021 -- Creation and internal assessment of a screening instrument for chronic prostatitis (S-CP)
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