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. Author manuscript; available in PMC: 2013 May 13.
Published in final edited form as: Ann Intern Med. 2012 Sep 4;157(5):305–312. doi: 10.7326/0003-4819-157-5-201209040-00003

Figure 1. Data Inclusion and Exclusion Criteria.

Figure 1

Abbreviations: HCUP Healthcare Cost and Utilization Project; SID - State Inpatient Dataset; LOS - Length of Stay: DRG - Diagnosis-related Group; Rehab - Rehabilition: VA - Veterans Affairs.