Yu Hao, Greenberg Michael D, Haviland Amelia M, Farley Donna O
RAND Corporation, Pittsburgh, Pennsylvania 15213, USA.
Am J Med Qual. 2009 Nov-Dec;24(6):465-73. doi: 10.1177/1062860609341585. Epub 2009 Aug 20.
Despite the fact that the Agency for Healthcare Research and Quality patient safety indicators (PSIs) are useful for evaluating adverse events in hospitals, the 20 PSIs make it difficult to summarize broad trends across indicators. This study aims to identify 1 or more measures among the PSIs best suited for a quick index of general patient safety status. The 1997-2002 Nationwide Inpatient Sample was used to calculate the hospital-level risk-adjusted rates of the PSIs. Both pairwise correlation analyses and multivariate analyses showed that PSI #7 (Selected infections due to medical care) is significantly correlated with most of the other PSIs. The results are robust even when (1) the pairwise and multivariate analyses are rerun on a reduced data set that excludes admissions with multiple patient safety events, and (2) Bonferroni-adjusted P values are calculated. The study concludes that PSI #7 appears to be a candidate for a quick index of patient safety status.
尽管医疗保健研究与质量局的患者安全指标（PSI）有助于评估医院中的不良事件，但这20项指标难以总结各指标间的总体趋势。本研究旨在从PSI中识别出1项或多项最适合作为一般患者安全状况快速指标的措施。利用1997 - 2002年全国住院患者样本计算医院层面PSI的风险调整率。成对相关性分析和多变量分析均表明，第7项PSI（因医疗护理导致的特定感染）与大多数其他PSI显著相关。即便在以下两种情况下，结果依然稳健：（1）在排除了发生多起患者安全事件的住院病例的简化数据集上重新进行成对分析和多变量分析；（2）计算经邦费罗尼校正的P值。该研究得出结论，第7项PSI似乎可作为患者安全状况快速指标的一个候选选项。
