Imputation Procedures. For events in this file that were eligible for the MEPS-MPC (i.e. physician office visits where MPCELIG=1), a predictive mean matching imputation method was used to impute missing expenditures. This procedure uses regression models (based on events with completely reported expenditure data) to predict total expenses for each event. Then, for each event with missing payment information, a donor event with the closest predicted payment to that for the event with missing payment was used to impute the missing payment value. For events in this file that were not eligible for the MEPS-MPC (i.e. non-physician visits where MPCELIG=2), a weighted sequential hot-deck procedure was used to impute missing expenditures. This procedure uses survey data from respondents to replace missing data while taking into account the respondents’ weighted distribution in the imputation process. Classification variables vary by type of provider in the hot-deck imputations, but total charge (when available) and insurance coverage are key variables in all of the imputations. Separate imputations were performed for flat fee and simple events. After the imputations were completed, visits to physician and non-physician providers were combined into this office-based medical provider visits file.
Imputation Procedures. 2.5.6.2.3 Office-Based Provider Visit Data Editing and Imputation ...................... C-12 C-12 2.5.6.3 Capitation Imputation ..................... C-13 2.5.6.4 Imputation Flag (IMPFLAG) ......... C-13 2.5.6.5 Flat Fee Expenditures ..................... C-14 2.5.6.6 Zero Expenditures........................... C-14 2.5.6.7 Discount Adjustment Factor ........... C-14 2.5.6.8 Sources of Payment ........................ 2.5.6.9 Office-Based Expenditure Variables C-15 (OBSF09X - OBTC09X) ................ C-15 2.5.7 Rounding ....................................................... C-16 Table of Contents (continued) 3.0 Sample Weight (PERWT09F) ................................................... C-16 3.1 Overview ..................................................................... C-16 3.2 Details on Person Weight Construction ...................... C-16 3.2.1 MEPS Panel 13 Weight................................. C-17 3.2.2 MEPS Panel 14 Weight................................. C-17 3.2.3 The Final Weight for 2009 ............................ C-17 3.2.4 Coverage ....................................................... C-18 3.3 Using MEPS Data for Trend Analysis ........................ C-18
