Caetano Ana Celia, Dias Sara, Santa-Cruz André, Rolanda Carla
Hospital de Braga, Serviço de Gastrenterologia, Braga, Braga, Portugal.
Universidade do Minho Instituto de Investigação em Ciências da Vida e Saúde, Braga, Portugal.
Arq Gastroenterol. 2018 Jan-Mar;55(1):55-60. doi: 10.1590/S0004-2803.201800000-11.
Recently, the Obstructed Defecation Syndrome score (ODS score) was developed and validated by Renzi to assess clinical staging and to allow evaluation and comparison of the efficacy of treatment of this disorder.
Our goal is to validate the Portuguese version of Renzi ODS score, according to the Consensus based Standards for the selection of the Health Measurement Instruments (COSMIN) checklist.
Following guidelines for cross-cultural validity, Renzi ODS score was translated into the Portuguese language. Then, a group of patients and healthy controls were invited to fill in the Renzi ODS score at baseline, after 2 weeks and 3 months, respectively. We assessed internal consistency, reliability and measurement error, content and construct validity, responsiveness and interpretability.
A total of 113 individuals (77 patients; 36 healthy controls) completed the questionnaire. Seventy and 30 patients repeated the Renzi ODS score after 2 weeks and 3 months respectively. Factor analysis confirmed the unidimensionality of the scale. Cronbach's α coefficient of 0.77 supported item's homogeneity. Weighted quadratic kappa of 0.89 established test-retest reliability. The smallest detectable change at the individual level was 2.66 and at the group level was 0.30. Renzi ODS score and the total (-0.32) and physical (-0.43) SF-36 scores correlated negatively. Patient and control's groups significantly differed (11 points). The change score of Renzi ODS score between baseline and 3 months correlated negatively with the clinical evolution (-0.86). ROC analysis showed minimal important change of 2.00 with AUC 0.97. Neither floor nor ceiling effects were observed.
This work validated the Portuguese version of Renzi ODS score. We can now use this reliable, responsive, and interpretable (at the group level) tool to evaluate Portuguese ODS patients.
最近，伦齐开发并验证了排便障碍综合征评分（ODS评分），以评估临床分期，并允许对这种疾病的治疗效果进行评估和比较。
我们的目标是根据基于共识的健康测量工具选择标准（COSMIN）清单，验证伦齐ODS评分的葡萄牙语版本。
按照跨文化效度指南，将伦齐ODS评分翻译成葡萄牙语。然后，邀请一组患者和健康对照分别在基线、2周和3个月后填写伦齐ODS评分。我们评估了内部一致性、可靠性和测量误差、内容和结构效度、反应性和可解释性。
共有113人（77名患者；36名健康对照）完成了问卷。70名和30名患者分别在2周和3个月后重复了伦齐ODS评分。因子分析证实了该量表的单维度性。克朗巴赫α系数为0.77，支持项目的同质性。加权二次kappa为0.89，确立了重测信度。个体水平上最小可检测变化为2.66，组水平上为0.30。伦齐ODS评分与SF-36总分（-0.32）和身体维度评分（-0.43）呈负相关。患者组和对照组有显著差异（11分）。基线和3个月之间伦齐ODS评分的变化分数与临床进展呈负相关（-0.86）。ROC分析显示最小重要变化为2.00，AUC为0.97。未观察到地板效应和天花板效应。
这项工作验证了伦齐ODS评分的葡萄牙语版本。我们现在可以使用这个可靠、有反应性且（在组水平上）可解释的工具来评估葡萄牙的ODS患者。
