Estimates of the Number of Persons with Other. Medical Expense Events When calculating an estimate of the total number of persons with other medical expense events, users can use a person-level file or this event file. However, this event file must be used when the measure of interest is defined at the event level. For example, to estimate the number of persons in the civilian non-institutionalized population of the U.S. with a medical expense for ambulance service in 1998, this event file must be used. This would be estimated as ∑ Wi Xi across all unique persons i on this file (4) where Wi is the sampling weight (WTDPER98) for person i and Xi = 1 if OMTYPEXj = 4 for any other medical expense record of person i. = 0 otherwise
Estimates of the Number of Persons with Other. Medical Expense Events When calculating an estimate of the total number of persons with other medical expense events, users can use a person-level file (MEPS HC-011: Person Level Expenditures and Utilization) or this event file. However, this event file must be used when the measure of interest is defined at the event level. For example, to estimate the number of persons in the civilian non-institutionalized population of the U.S. with a medical expense for ambulance service in 1996, this event file must be used. This would be estimated as where Wi Xi across all unique persons i on this file,
