HARMONIZED DATA
| Label: | s4puffref |
|---|---|
| Description: | s4puffref:w4 s didn't complete lung: refused |
| Item type: | Constructed variable |
| Answer type: | Enumerated |
| Answer choices: | 0.No ; 1.Yes ; .c:completed test ; .d:DK ; .m:Missing ; .r:Refuse ; .u:Unmar ; .v:SP NR |