Piyaphanee Nuntawan, Sirikuntaramas Sarintip, Sumboonnanonda Achra, Farhat Walid A
J Med Assoc Thai. 2016;100(1):9-16.
Bladder and bowel dysfunction (BBD) is a common problem and a predisposing factor for urinary tract infection in children. Evaluation using the Dysfunctional Voiding Symptom Score (DVSS) questionnaire is widely used. The original English DVSS has been translated to several languages. Thai version of the DVSS would be helpful for early detection and management of BBD in children.
To translate and adapt DVSS to Thai version and evaluate validity and reliability of this questionnaire in children aged 3-10 years.
DVSS English version was translated into Thai according to the following methodology: translation, synthesis, back-translation, expert reviews, and pre-testing. Patients aged 3 -10 years with a history of diurnal urinary incontinence, urinary tract infection or abnormal voiding habits, presenting to pediatric nephrology or urology clinic, were recruited as study group. Age-matched children presenting to general outpatient clinic were recruited as control group. Final DVSS-Thai version was tested and re-tested at the following 1 - 2 weeks. The internal consistency and test–retest reliability was assessed with Cronbach’s alpha test and intraclass correlation (ICC), respectively. The optimum cutoff score was analyzed using receiver operating characteristics (ROC) curve.
The back translation to English of Thai version corresponded to the original English DVSS. Age and sex between the study (n = 22) and control (n = 30) group were not different. Mean total scores of the DVSS were 11.6±4.7 VS 1.9±1.6 (p<0.001) in the study and control group, respectively. Cronbach’s alpha coefficient was 0.8 and intraclass correlation coefficient (ICC) was 0.906 (p<0.001). The optimum cutoff score was 5 (sensitivity 100% and specificity 96.7%) with area under the curve of 0.998 (p<0.001).
Thai version of the DVSS was completed by proper process and demonstrated an excellent validity and reliability. It should be used to identify BBD in Thai children.
膀胱和肠道功能障碍（BBD）是儿童常见的问题，也是尿路感染的一个诱发因素。使用功能性排尿症状评分（DVSS）问卷进行评估被广泛应用。原始的英文DVSS已被翻译成多种语言。DVSS的泰语版本将有助于儿童BBD的早期检测和管理。
将DVSS翻译成泰语版本并进行改编，评估该问卷在3至10岁儿童中的有效性和可靠性。
DVSS英文版本按照以下方法翻译成泰语：翻译、综合、回译、专家评审和预测试。招募年龄在3至10岁、有日间尿失禁、尿路感染或异常排尿习惯病史、到儿科肾脏病或泌尿外科门诊就诊的患者作为研究组。招募到普通门诊就诊的年龄匹配儿童作为对照组。最终的DVSS泰语版本在接下来的1至2周进行测试和重新测试。分别使用克朗巴哈系数检验和组内相关系数（ICC）评估内部一致性和重测信度。使用受试者工作特征（ROC）曲线分析最佳截断分数。
泰语版本回译成英文与原始英文DVSS相符。研究组（n = 22）和对照组（n = 30）的年龄和性别无差异。研究组和对照组的DVSS平均总分分别为11.6±4.7和1.9±1.6（p<0.001）。克朗巴哈系数为0.8，组内相关系数（ICC）为0.906（p<0.001）。最佳截断分数为5（敏感性100%，特异性96.7%），曲线下面积为0.998（p<0.001）。
DVSS泰语版本通过适当的流程完成，具有出色的有效性和可靠性。它应用于识别泰国儿童的BBD。
