OH评估法在重症患者压疮危险评估中的信效度研究

Study on reliability and validity of OH risk assessment scale in critical care patients

目的 汉化OH评估法并评价其用于重症患者压疮危险评估的信效度.方法 将原文版OH评估法翻译成中文、回译成日文,并经专家组修正和调适语义形成量表中文版.入选5所综合性治疗医院监护病房的重症患者476例,将来自7个ICU的21名护士经过统一培训后分为3组,每组7名,分别使用Braden量表和中文版OH评估法独立评估相同患者每日1次,连续7 d,测试其效度和信度.结果 OH评估法的内容效度0.88,标准效度0.82和0.86.因子分析产生的2个公因子累积贡献率63.82%,各条目因子载荷均〉0.4,且共同度均〉50%.Cronbach＇ sα系数为0.75,重测信度0.80,评定者间信度0.95~0.98.结论 中文版OH评估法有良好的信效度,能够用于重症患者压疮危险的评估、预测.

Objective To convert OH risk assessment scale into Chinese version and test it reliability and validity in critical care patients for pressure ulcers.Methods The first, Japanese version of OH risk assessment scale was translated into Chinese, then it was translated back to Japanese, and last,converted into the Chinese version by experts correction and language adaption. Twenty-one trained nurses from 7 ICU departments were divided into three groups, with seven nurses in each group. They used Braden scale and Chinese version of OH risk assessment scale, respectively and independently assessed 476 critical care patients from five comprehensive care hospitals＇ ICU once daily until to seven days.Results The content validity of OH risk assessment scale was 0.88 and its criterion-related validity was 0.82 and 0.86. Comulative contribution of two common factors by factor analysis was 63.82% and component factor loading of each item was more than 0.4, and communalities of each item was more than 50%. The Cronbach＆39;s α coefficient was 0.75 and test-retest reliability was 0.80.The inter-rater reliability was 0.95 to 0.98.Conclusions The Chinese version of OH risk assessment scale had good validity and reliability. It could be used to assess and predict the pressure ulcer risks for critical care patients.