Over the past decade, significant emphasis has been placed on patient safety. New measures and systems have emerged to measure safety and quality, yet little is known about their effectiveness. This article assesses patient safety indicators (PSIs) over the past decade to examine whether national trends have improved.
This study uses data from the Nationwide Inpatient Sample (NIS) on eligible inpatient admissions between 1998 and 2007. The NIS data includes de-identified discharge data (up to 15 diagnoses and procedures) from 1,045 hospitals located in 38 states. PSI criteria were from the Agency for Healthcare Research and Quality. Annual percent changes for PSIs were estimated using joinpoint regression.
This study provides important information in understanding national trends of PSIs and demonstrating possible priority areas for quality improvement.