Slide 39 Healthcare Cost and Utilization Project (HCUP): Overview of HCUP DatabaseSlide Presentation from 2010 webinar describing the Healthcare Cost and Utilization Project (HCUP). Cost-to-Charge Ratio FilesHospital-Level Nationwide Inpatient Sample (NIS)/Kids' Inpatient Database (KID)/State Inpatient Databases (SID) Data.Apply Ratios.Convert Charges to Costs.The Cost-to-Charge Ratio Files enable conversion of charge data to cost data on the NIS, KID, and SID.Previous Slide | Contents | Next Slide Current as of October 2010 Internet Citation: Slide 39: Healthcare Cost and Utilization Project (HCUP): Overview of HCUP Database. October 2010. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/data/hcup/webinars/hcupsld39.html