Reliability and validity of the National Institutes of Health Chronic Prostatitis Symptom Index questionnaire in the Turkish Population

Abstract

Background/aim To develop the first Turkish version of the National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI) questionnaire and to investigate its validity and reliability in men with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) and healthy controls. Material and methods A total of 204 patients, 116 CP/CPPS and a control group which consisted of 88 healthy individuals were included in this prospective study. The NIH-CPSI form was first translated into Turkish and later on back into English. Using the Turkish version of the NIH CPSI, 40 patients completed the same questionnaires twice at 2-week intervals for test-retest concordance. To evaluate internal consistency and test-retest reliability, Cronbach’s alpha value, and the Spearman correlation test were utilized respectively. Results Our findings demonstrated statistically significant differences in NIH-CPSI scores between the patients and control groups (P <0.001). Cronbach’s alpha coefficient value of NIH-CPSI was 0.864. Reliability of test-retest was 0.909 (P <0.001). Additionally, the Spearman correlation test showed that the results obtained using the Turkish NIH-CPSI were significantly correlated. Conclusion The first Turkish version of the NIH-CPSI was found to be a reliable and valid instrument for Turkish patients with chronic prostatitis in both clinical and research settings.

Chronic Prostatitis: Impact of Lifestyle, Infection, and Inflammation on Semen Parameters

“…Chronic prostatitis is a disease of young adults under 50 years [8], [40], [41] characterized by voiding symptoms, genitourinary pain, and often sexual dysfunction, that may lead to impaired sexual and reproductive health [7], [8], [42], [43], [44], such as erectile dysfunction and premature ejaculation [42], [45], [46], [47], [48]. Erectile dysfunction is 3.6 times more common in men with chronic prostatitis symptoms [49], and up to 35% of patients with chronic prostatitis experience erectile dysfunction [48].…”

Prostatitis‐like symptoms in Antioquia, Colombia using the National Institute of Health‐Chronic Prostatitis Symptom Index

“…Since its appearance in 1999, 10 the NIH CPSI has been a versatile tool that allows, in an agile way, for the characterization of the experience of prostatitis‐like symptoms 10 . Some researchers suggest that the impact of pain on life quality is even more significant than the relevance of urinary symptoms or the location of the pain 1,7 . Furthermore, in urology, self‐filling questionnaires are widely accepted for patients' initial diagnosis and assessment 30 …”

“…Prostatitis is a highly prevalent disease worldwide, 1,2 about 15% of men under 50 years will experience prostatitis symptoms at some point in their lives, 1,2 which is a similar prevalence to chronic diseases such as diabetes 1,3 . It has been suggested that due to high prevalence of prostatitis, the often ambiguity of symptoms, debatable diagnostic methods and the argument that few investigations have been developed; it has been considered an enigmatic disease 4 .…”

“…Prostatitis is a highly prevalent disease worldwide, 1,2 about 15% of men under 50 years will experience prostatitis symptoms at some point in their lives, 1,2 which is a similar prevalence to chronic diseases such as diabetes. 1,3 It has been suggested that due to high prevalence of prostatitis, the often ambiguity of symptoms, debatable diagnostic methods and the argument that few investigations have been developed; it has been considered an enigmatic disease. 4 A heterogeneous disorder where the presence of symptoms and clinical findings are not always correlated, 5 prostatitis is classified into four types: (I) acute bacterial prostatitis; (II) chronic bacterial prostatitis; (III) chronic pelvic pain syndrome; and (IV) asymptomatic inflammatory prostatitis.…”

“…7 Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) is characterized by pelvic pain for almost 3 months and voiding symptoms that affect the quality of life. It does not have a specific diagnostic tool, 1,8 but its aetiology and prevalence are not clearly defined. 9 Prostatitis prevalence is heterogeneous, which is associated with the diagnostic methodology used, thus the National Institute of Health of the United States proposed the Chronic Prostatitis Symptom Index (NIH-CPSI).…”