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        | Download Data Files — Codebook |  
 
        
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            | MEPS HC020 CODEBOOK |  
            | 1997 Full Year Consolidated Data File |  
            | DATE:September 20, 2005 |  
 
          
            | Variable Name: | STNDIF31 |  
            | Description: | DIFFICULTY STANDING 20 MINUTES - RD 3/1 |  
            | Format: | 2.0 |  
            | Type: | NUM |  
            | Start: | 1415 |  
            | End: | 1416 |  
 
        
          
            |  |  |  |  
            | -9 NOT ASCERTAINED | 1 | 8,356 |  
            | -8 DK | 15 | 125,837 |  
            | -1 INAPPLICABLE | 31,420 | 247,022,472 |  
            | 1 NO DIFFICULTY | 917 | 8,336,752 |  
            | 2 SOME DIFFICULTY | 959 | 7,071,811 |  
            | 3 A LOT OF DIFFICULTY | 616 | 4,445,289 |  
            | 4 UNABLE TO DO | 623 | 4,268,068 |  
            | TOTAL | 34,551 | 271,278,585 |  
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