The last step in the production process is controlling the state estimates to the national CPS ASEC estimates for people with and without health insurance, within demographic groups. The numbers of insured are aggregated to the national level for each of the demographic groups, and the ratios of the national CPS ASEC direct estimates to the aggregated national model-based estimates are calculated to form the raking factors. A raking factor is multiplied with the health insurance estimates for the corresponding demographic group in every state and IPR group to form the raked health insurance estimates. The uninsured estimates are formed by subtracting these estimates from the estimated number of people in the corresponding state demographic by IPR categories.
We control to national estimates for two reasons. One is to guarantee consistency with direct CPS ASEC estimates at high levels of aggregation. The second reason is to control for possible weaknesses or failures of the model. We account for the variances of the controls by treating the controls as random quantities in the estimation program.