This International Pressure Ulcer Prevalence (IPUP) survey of pressure ulcer prevalence revealed that overall prevalence, facility-acquired prevalence, prevalence excluding stage I, and facility-acquired prevalence excluding stage I have decreased significantly during 2009-2010. An estimated 8% to 10% of patients in ICUs developed a facility-acquired pressure ulcer. Facility-acquired pressure ulcer prevalence is highest in pediatric ICUs, burn units, ICU, and CCU, and SICU.