# NHANES Data for Validation

Place NHANES XPT files here to run `tests/validate_on_nhanes.py`.

## Expected structure

```
nhanes_data_dump/
├── 2017-2020/          # Primary cycle (P_BIOPRO.XPT, P_MCQ.XPT, P_CBC.XPT, etc.)
└── extended_data/
    ├── 2003-04/
    ├── 2005-06/
    ├── 2007-08/
    ├── 2009-10/
    ├── 2011-12/
    ├── 2013-14/
    └── 2015-16/
```

## Download

Get data from [NHANES](https://wwwn.cdc.gov/nchs/nhanes/). The validation script uses the same file merges as the training notebook.