| BLL | Blood lead level |
| BUN | Blood urea nitrogen |
| CI | Confidence Interval |
| CRCL | Creatinine clearance |
| eGFR | estimated Glomerular Filtration Rate |
| GF | Glomerular function |
| KNHANES | The Korea Nation Health and Nutrition Examination Survey |
| NS | Not specified |
| PbB | Blood lead |
| PVC | Polyvinyl chloride |
| Ref | Reference number |
| WMD | Weighted Mean Difference |
| mg/dL | milligrams per deciliter |
| μg/dL | micrograms per deciliter |
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