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Table 3 Frequency of SNH definition(s) used by article characteristics (n = 22 articles)

From: Defining safety net hospitals in the health services research literature: a systematic review and critical appraisal

  Data Sources Journal Type Year Categories
Cost Reports AHA HCUP NIS Other dataset Policy- related Health services Clinical-related 2009–2012 2013–2015 2016–2018
Medicaid caseload   3    1 2 2   3 1  
Uncompensated care   1      1   1   
Facility characteristics   1      1   1   
DSH payments 4 3    1 4 2 2   4 4
Patient case mix 1     1 1   1    2
Medicaid caseload + facility characteristics   3 1    1 1 1 2   1
Medicaid caseload + uncompensated care   1 2 2 2   3 2   2 3
Uncompensated care + DSH payments + Medicaid caseload      1   1   1   
  1. SNH is Safety Net Hospital, AHA is American Hospital Association Annual Survey of Hospitals, HCUP is Health Care Utilization Project, NIS is National Inpatient Sample