目的 检验PRO-KIN平衡仪对预测老年人跌倒的效度、信度和敏感度,为其临床应用提供客观依据.方法 选择符合试验条件的老年人分为有跌倒史(病例组)和无跌倒史(对照组)各30例参加本研究,每位受试者在1周内各进行2次PRO-KIN平衡仪和Berg平衡量表测试,对PRO-KIN平衡仪和Berg平衡量表测试结果采用Pearson相关分析来检验PRO-KIN平衡仪的效度;采用等级间相关系数(intraclass correlation coefficient,ICC)检验PRO-KIN平衡仪的信度;对病例组和对照组PRO-KIN平衡仪测试结果采用独立样本t检验来检验PRO-KIN平衡仪的敏感度.结果 PRO-KIN平衡仪与Berg平衡量表的各个指标均呈中度负相关且具有统计学意义(r=-0.512～-0.677,均P<0.01);PRO-KIN平衡仪的组内信度ICC为0.89～0.98且95%可信区间集中;病例组2次PRO-KIN平衡仪测试结果与对照组比较,差异均有统计学意义(均P<0.01).结论 PRO-KIN平衡仪对老年人跌倒的预测具有较高的效度、信度和敏感度.%Objective To explore the validity,reliability and sensitivity of PRO-KIN balance in-strument in predicting falls in old people,and to provide an objective basis for its clinical applica-tion. Methods Sixty subjects matching admitting conditions were equally divided into research group (the elderly with falling history) and control group (the elderly without falling history). All subjects received PRO-KIN balance instrument test and Berg Balance Scale test twice per week,and the results were analyzed by Pearson correlation analysis rank correlation coefficient (intraclass correlation coefficient, ICC) to test the validity and reliability of PRO-KIN balance in-strument, respectively. Independent samples f-test was used to test the sensitivity of PRO-KIN balance instrument. Results Indicators of PRO-KIN balance instrument showed a moderate nega-tive correlation with those of Berg Balance Scale (r=-0. 512-0. 677, P<0. 01). The ICC of PRO-KIN balance equipment was 0. 89-0. 98 and 95% credibility intervals were centered. There were significant differences in PRO-KIN balance test results between the two groups (P<0. 01). Conclusion PRO-KIN balance instrument shows high validity, reliability and sensitivity for thernprediction of falls in old people.
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