# Data Dictionary - US Drug Adverse-Event Spike Index (FAERS z-score) - derived Parquet

**Units:** all `z_score` values are in **z-score**.  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | Drug generic name |
| `ts` | timestamp (UTC) | Report month |
| `z_score` | float | Report-count z vs 24-mo baseline |
| `unit` | str | Unit |
| `res_min` | int | Native resolution (monthly) |

*Source: U.S. Food and Drug Administration - openFDA (FAERS).*