2006 HCSDB Adult Sampling Report - Tricare

2006 HEALTH CARE SURVEY OF DOD BENEFICIARIESChapter&RQVWUXFWLRQRI6DPSOLQJ6WUDWDThe QBS sample was independently selected within strata defined by a combination of enrollmentstatus and beneficiary type within a geographic area. This chapter describes the initial constructionof sampling strata for the QBS, the collapsing of initial strata to form larger strata (as necessary),and results of the stratification.$ 675$7,),&$7,219$5,$%/(6The QBS sampling frame included two stratification variables: (1) TRICARE Prime enrollmentstatus combined with beneficiary group and (2) geographic area defined according to thebeneficiary’s address or the location of the military health care facility where the beneficiary wasenrolled.75,&$5(3ULPH(QUROOPHQW6WDWXVDQG%HQHILFLDU\7\SHThe combined enrollment status and beneficiary type stratification variable, EBG_COM, wasdeveloped as follows. First, enrollment status was determined by dividing the target population intotwo enrollment groups: (1) enrolled in TRICARE Prime and (2) not enrolled in TRICARE Prime.Enrollment status was determined using the DEERS variable for the primary care manager code(PCM). Following the definition of PCM values, all beneficiaries with PCM = MTF or PCM = CIV(civilian PCM) are enrolled in Prime. All beneficiaries with PCM = blank are not enrolled in Prime.Next, beneficiaries were separated into four groups: (1) active duty, (2) active duty family members,(3) retirees and their family members younger than 65, and (4) retirees and their family membersage 65 or older. We used DEERS variable PATCAT to identify each beneficiary group. Allbeneficiaries with PATCAT = ACTDTY are active duty; all beneficiaries with PATCAT = DEPACTare active duty family members. Those beneficiaries with PATCAT = NADD