HARMONIZED DATA
| Label: | r6puffeff |
|---|---|
| Description: | r6puffeff:w6 amount effort r gave to lung function test |
| Item type: | Constructed variable |
| Answer type: | Enumerated |
| Answer choices: | 1.full effort ; 2.not full effort-illness ; 3.not full effort-no reason ; .d:DK ; .m:Missing ; .n:not willing/able ; .p:proxy ivw ; .r:Refuse |