The AHRQ Patient Safety Indicators (PSIs) are important metrics commonly used to assess patient safety in inpatient settings. This study used the PSIs to measure adverse events in over 4.7 million patient stays between 2016 and 2018 in Belgium. The researchers found that rates were generally low, but higher than comparable rates in the United States, particularly for failure-to-rescue and CLABSI. Only four PSIs had lower rates in Belgium compared to the United States.