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        | Download Data Files — Codebook |  
 
        
          | 
          
            | MEPS HC-156 |  
            | PANEL 16 LONGITUDINAL DATA CODEBOOK |  
            | DATE:  October 19, 2017 |  
 
          
            | Variable Name: | WHNHEL4 |  
            | Description: | WHEN DR ADVISE BIKE HELMET (2-17)-R4 |  
            | Format: | 2.0 |  
            | Type: | NUM |  
            | Start: | 1475 |  
            | End: | 1476 |  
 
        
          
            |  |  |  |  
            | -8 DK |             10 |         88,035 |  
            | -1 INAPPLICABLE |         16,599 |    287,810,862 |  
            | 1 WITHIN PAST YEAR |          1,375 |     20,187,097 |  
            | 2 WITHIN PAST 2 YEARS |            297 |      4,182,659 |  
            | 3 MORE THAN 2 YEARS |            231 |      4,513,125 |  
            | TOTAL |         18,512 |    316,781,778 |  
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