The quantitative data sources used in this memorandum include the Medicare Enrollment Data Base (EDB) and claims data, HUD tenant and property-level data, and SASH program participant files. Medicare claims are quarterly observations of payments and health care utilization from January 2006 through June 2013. Medicare claims data are also used to develop measures of health status during the year prior to the launch of SASH program under the MAPCP Demonstration (July 1, 2010 - June 30, 2011). The Medicare EDB is used to identify beneficiary demographic characteristics also during the year preceding program launch. Property data on SASH and non-SASH facilities are taken from 2012 HUD records. Our evaluation team used two HUD data sources; the Tenant Rental Assistance Certification System (TRACS) and the Public and Indian Housing Information Center (PIC). TRACS is the data base for all multi-family properties (Section 202, Section 236, Section 8, etc.), and the PIC is the data base for all HUD supported public properties and vouchers.