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        | Download Data Files — Codebook |  
 
        
          | 
          
            | MEPS HC-178F CODEBOOK |  
            | 2015 OUTPATIENT DEPARTMENT VISITS |  
            | DATE:       May 5, 2017 |  
 
          
            | Variable Name: | OPDATEYR |  
            | Description: | EVENT DATE - YEAR |  
            | Format: | 4.0 |  
            | Type: | NUM |  
            | Start: | 45 |  
            | End: | 48 |  
 
        
          
            |  |  |  |  
            | -9 NOT ASCERTAINED |              4 |         44,500 |  
            | -8 DK |              3 |         27,007 |  
            | 2015 |         14,171 |    157,690,730 |  
            | TOTAL |         14,178 |    157,762,236 |  
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