`da002_1_1_` // Self-know Disease [1] Compared to ZIWTime

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attributes

dataset	charls2020 · 中国健康与养老追踪调查2020
type	`categorical`
role
data file
keywords

Coded values

code	meaning
`1`	Better
`2`	Worse
`3`	Same
`99`	Never Had the Disease