Psychometric Properties and Cutoff Value of the Turkish Overactive Bladder Symptom Score

Emine Baran; Ceren Gürşen; Serap Ozgul; Gamze Nalan Çinar; Gulbala Nakip; Esra Üzelpasaci; Nejat Ozgul; Mehmet Sinan Beksaç; Türkan Akbayrak

doi:10.1097/SPV.0000000000001446

Psychometric Properties and Cutoff Value of the Turkish Overactive Bladder Symptom Score

Urogynecology (Phila). 2023 Dec 28. doi: 10.1097/SPV.0000000000001446. Online ahead of print.

Authors

Emine Baran¹, Ceren Gürşen², Serap Ozgul², Gamze Nalan Çinar², Gulbala Nakip², Esra Üzelpasaci³, Nejat Ozgul⁴, Mehmet Sinan Beksaç⁴, Türkan Akbayrak²

Affiliations

¹ From the Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Hitit University, Çorum.
² Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara.
³ Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Osmangazi University, Eskişehir.
⁴ Department of Obstetrics and Gynecology, Faculty of Medicine, Hacettepe University, Ankara, Turkey.

PMID: 38212116
DOI: 10.1097/SPV.0000000000001446

Abstract

Importance: The Overactive Bladder Symptom Score (OABSS) measures all overactive bladder (OAB) symptoms with graded answers, evaluates urgency symptoms, and reveals the subjective bladder control. However, the Turkish version and the cutoff value of the questionnaire have not yet been studied.

Objective: The aims of this study were to determine the psychometric properties of the 7-item OABSS and to estimate the cutoff value of the scale.

Study design: This was an observational study. The internal consistency (Cronbach α) and test-retest reliability were analyzed, and exploratory factor analysis was performed. For the criterion validity, the correlations between the OABSS, the Overactive Bladder Questionnaire, the Bristol Female Lower Urinary Tract Symptoms questionnaire, and outcomes of a bladder diary were used. The cutoff value of the OABSS was analyzed by the receiver operating characteristics curve analysis.

Results: Participants with (n = 49) and without (n = 38) OAB were included. The internal consistency was very strong (Cronbach α = 0.95). The test-retest reliability was very strong (intraclass correlation coefficients = 0.93-0.95, P = 0.001). The percentage of explanation of the total variance was calculated as 78%. There was a strong to very strong correlation between the OABSS and the Overactive Bladder Questionnaire and Bristol Female Lower Urinary Tract Symptoms scores and outcomes of the bladder diary. The cutoff value for the OABSS was determined as 10.5.

Conclusions: The Turkish OABSS was found to be a valid and reliable scale to determine OAB symptoms and severity. Those who score more than 10.5 on the questionnaire can be considered as at risk of OAB syndrome.