HARMONIZED DATA
| Label: | s10puffref |
|---|---|
| Description: | s10puffref:w10 s didn't complete lung: refused |
| Item type: | Constructed variable |
| Answer type: | Enumerated |
| Answer choices: | 0.no ; 1.yes ; .c:completed test ; .m:Missing ; .s:Skipped ; .u:not coupled ; .v:SP NR |