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        | Download Data Files — Codebook |  
 
        
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            | MEPS HC-135F CODEBOOK |  
            | 2010 OUTPATIENT DEPARTMENT VISITS |  
            | DATE:     June 12, 2012 |  
 
          
            | Variable Name: | OPDATEYR |  
            | Description: | EVENT DATE - YEAR |  
            | Format: | 4.0 |  
            | Type: | NUM |  
            | Start: | 45 |  
            | End: | 48 |  
 
        
          
            |  |  |  |  
            | -9 NOT ASCERTAINED |              6 |        129,265 |  
            | -8 DK |              1 |          2,205 |  
            | 2010 |         10,955 |    123,965,774 |  
            | TOTAL |         10,962 |    124,097,244 |  
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