• Harm in the hospital, or "hospital-acquired conditions (HAC)," includes medication errors, falls, pressure ulcers, blood clots, obstetric adverse events and healthcare-associated infections
• A recent study of 11 hospitals in Massachusetts found that serious preventable harm occurred in about 1% of hospital admissions
• A "National Scorecard" on HAC details how often each type of problem occurs

Sources & more info:

Hospital-Acquired Conditions
AHRQ.gov

The Safety of Inpatient Health Care
NEJM.org

National Scorecard on Hospital-Acquired Conditions
AHRQ.gov