SMQ852U // The last time {you/SP} tried to quit, how long {were you/was he/was she} able to stop smoking?

attributes · 属性

数据集nhanes2018 · NHANES 2017-2018 Cycle
类型categorical
角色
数据文件SMQ_J
关键词

取值编码

编码含义
1Days
2Weeks
3Months