The overall score is the simple sum of the four symptom scores T

The overall score is the simple sum of the four symptom scores. Traditionally, a questionnaire has many items with the same minimum and maximum score (e.g. IPSS).27 However, with the OABSS, scales vary. For instance, the item “How often do you have a sudden desire to urinate, which is difficult to defer?” (urgency) ranges from 0 to 5. Scores for “How often do you leak urine because you cannot defer the sudden desire to urinate?” (urge incontinence) also range from 0 to 5. “How many times

do you typically wake up to urinate from sleeping at night until waking in the morning?” (nocturia) ranges from 0 to 3, while “How many times do you typically urinate from waking in the morning until sleeping?” (frequency) ranges from 0 to 2. Homma mentioned

that the relative weight among the four scores was determined on the basis of the maximal influence rate of the symptom in the epidemiologic survey.29 As Romidepsin concentration urgency is the core symptom of OAB, the design of OABSS is meant to show a clear separation between subjects with OAB and controls. One source of concern is that the OABSS was developed and validated using only Japanese patients. The authors did mention that cultural background may affect the psychometric properties of symptom questionnaires.28 Although different questionnaires are now available and validated for OAB, most of them are written in English. For non-English-speaking people, the questionnaires must be translated into the appropriate language. In 2006, Acquadro et al. translated the OABq into 14 languages.30 The process included six steps: (i) two forward translations; GS-1101 mouse (ii) comparison and reconciliation of the translations; (iii) back-translation; (iv) comparison of the source and back-translation; (v) review by one urologist or gynecologist; and (vi) a comprehension test, using patients. However, none of these versions was in traditional Chinese. In 2008, the president Tyrosine-protein kinase BLK of the Taiwan Continence Society (TCS), Professor Kuo, commenced linguistic validation and other elements of production of a Chinese version of the Homma OABSS. The process involved forward- and back-translation, and review by urologists and gynecologists

in expert meetings in Taiwan (hosted by Professor Kuo) and in Japan (hosted by Professor Homma). The validated OABSS in Traditional Chinese is now available (Appendix II) and posted on the official website of the TCS ( OAB is a symptom-based condition without physiological markers of disease activity. Appropriate tools are needed to assess patients with OAB. There is still no consensus for the evaluation of OAB. Patients may need to be assessed from different aspects, such as clinical symptoms, FVC, and multi-item questionnaires to obtain patient-reported outcomes to fully understand the condition in patients with OAB. On the other hand, a simple and effective symptom score is needed to meet the requirements of clinical work.

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