37 Kids’ Inpatient Database (KID)
37.3 Description
- Only all-payer (private insurance, Medicaid, Medicare, and uninsured) pediatric inpatient care database in the United States, containing data from two to three million hospital stays
- Sample of pediatric (age 20 or younger at admission) discharges from community, non- rehabilitation hospitals in participating states
- Used for developing national and regional estimates and analyzing rare conditions and uncommon treatments
- Wide range of topics including economic burden, access to services, quality of care, patient safety, impact of health policy changes
37.6 Collection Methodology
- Capture four files: inpatient core file containing pediatric discharges sampled from participating HCUP hospitals (contains linkage variables, demographics, clinic information, and payment information); hospital file containing linkage variables and basic information about the hospital; disease severity measures file; and, the diagnosis and procedure group files.
- State-level inpatient databases serve as sampling frame for KID
- Select stratified sample (uncomplicated in-hospital births, complicated in-hospital births, all other pediatric hospital stays), oversampling in last two groups
37.7 Available at
Purchase at https://hcup-us.ahrq.gov/tech_assist/centdist.jsp
37.8 User Guide/Data Dictionary
- Data elements are available at https://www.hcup- us.ahrq.gov/db/nation/kid/kiddde.jsp .
- Also see https://hcup- us.ahrq.gov/db/nation/kid/kiddbdocumentation.jsp
37.12 Special Notes
- Hospital discharge data uses ICD codes. 2012 and earlier use ICD-9 while 2016 and later years use ICD- 10.
- KID 2015 was skipped by HCUP due to the transition from ICD-9 to ICD-10 that year; 2016 released instead
- Cannot be used to conduct state-level analyses
- All users must take on-line HCUP Data Use Agreement (DUA) training course and read and sign DUA
- Before publishing with any HCUP database, ensure manuscript follows requirements of the HCUP DUA and includes the appropriate citation (see https://www.hcup- us.ahrq.gov/db/publishing.jsp)