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The Household Survey sample is a stratified multistage area probability design with a total sample of roughly 35,000 individuals in 14,000 households who completed all rounds of data collection. Oversampling of population subgroups of special policy interest included poor and low-income families, the elderly, the functionally impaired, and Black and Hispanic minorities. The HIPS sample included (1) all employers associated with jobs held by individuals at least 16 years old in the fourth round of the Household Survey, (2) the most recent employer of individuals not employed in Round 4 who were at least 21 years old, and (3) all sources of health insurance that were identified by sampled individuals as in force at the end of 1987.