A variable in this array indicates whether an individual was covered by health insurance during month M. M represents the month number since the start of panel_1stfullyear. Only the first 24 months of the individual's SIPP panel are in universe. A later release of these data will add months after 24 for longer SIPP panels. Months that are outside the time frame covered by an individual's SIPP panel will always be missing and out of universe. Health insurance coverage is derived from the following variables: HIIND in the 1984 & 1990-1993 panels; EHIMTH in the 1996-2008 panels.

0	Respondent did not have health insurance coverage during this month
1	Respondent had health insurance coverage during this month
Sysmiss