家庭收入是否低于贫困线，或家庭收入与贫困线的比值。收入分配、福利政策、健康不平等研究常用。
美国数据常用 income-to-poverty ratio；二值贫困状态和连续贫困比率含义不同，回归模型应分开命名。
Manually curated mapping of the same concept to its variable name in each database.
| dataset | variable | label | type/role | note |
|---|---|---|---|---|
| cps_asec_2023 CPS Annual Social and Economic Supplement 2023 (March CPS) | POVLL | Poverty Level | continuous / dv,iv | 家庭收入 / 贫困线 × 100 |
| gss2022 General Social Survey 2022 | povline | r's hh poverty status | categorical | 家庭贫困状态 |
| nhanes2018 NHANES 2017-2018 Cycle | INDFMPIR | Family PIR | continuous / iv,control | 家庭收入贫困比率 |
| eusilc2022 EU-SILC 2022 Cross-sectional UDB | HX080 | At-Risk-of-Poverty Indicator | binary / dv | 贫困风险指示变量 |