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        | Download Data Files — Codebook |  
 
        
          | 
          
            | MEPS HC-122 |  
            | PANEL 12 LONGITUDINAL DATA CODEBOOK |  
            | DATE:  October 23, 2017 |  
 
          
            | Variable Name: | WHNHEL2 |  
            | Description: | WHEN DR ADVISE BIKE HELMET (2-17)-R2 |  
            | Format: | 2.0 |  
            | Type: | NUM |  
            | Start: | 1599 |  
            | End: | 1600 |  
 
        
          
            |  |  |  |  
            | -8 DK |              5 |         93,020 |  
            | -1 INAPPLICABLE |         11,352 |    284,482,060 |  
            | 1 WITHIN PAST YEAR |            742 |     15,427,481 |  
            | 2 WITHIN PAST 2 YEARS |            176 |      4,027,894 |  
            | 3 MORE THAN 2 YEARS |            165 |      3,573,824 |  
            | TOTAL |         12,440 |    307,604,278 |  
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