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Abstract
Objective To translate the International Consultation on Incontinence Modular Questionnaire for Male Lower Urinary Tract Symptoms (ICIQ-MLUTS) and ICIQ-MLUTS long form (ICIQ-MLUTS LF) into Chinese and assess their metric properties and applicability. Methods After obtaining permission from the International Consultation on Incontinence Questionnaire (ICIQ), original ICIQ-MLUTS and ICIQ-MLUTS LF were translated into Chinese according to ICIQ validation protocol and cultural adaptation guideline. During November 2017 to August 2018, Chinese version of ICIQ-MLUTS and ICIQ-MLUTS LF were tested by administering them in 6 and 12 hospitals in China respectively. To validate the translated questionnaires, the following tests were undertaken. The content validity was determined by in-depth interviews with participants and experts. The correlation coefficients of ICIQ-MLUTS and ICIQ-MLUTS LF with International Prostate Symptom Score (IPSS) were assessed to validate criterion validity. Cronbach’s alpha test was used to explore internal consistency. And the test-retest reliability was evaluated by calculation of intraclass correlation coefficient. Results In total, Chinese ICIQ-MLUTS and ICIQ-MLUTS LF were administrated to 135 and 230 male patients with lower urinary tract symptoms respectively. Both questionnaires had good content validity and good criterion validity with IPSS (Pearson correlation 0.846 and 0.833 for ICIQ-MLUTS and ICIQ-MLUTS LF respectively, both P<0.001). The Cronbach’s alpha coefficient was 0.797 for ICIQ-MLUTS, and 0.853 for ICIQ-MLUTS LF. Intraclass correlation coefficient was 0.986 and 0.985 respectively (both P<0.001), showing good test-retest reliability. Conclusions The Chinese version of ICIQ-MLUTS and ICIQ-MLUTS LF had good validity and reliability, which can be used to assess Chinese male patients with lower urinary tract symptoms. Key words: Lower urinary tract symptoms; Questionnaire; Chinese; Validation
Published Version
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