Add dataset card

README.md

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+---
+license: cc-by-4.0
+task_categories:
+  - tabular-regression
+  - tabular-classification
+tags:
+  - gwas
+  - summary-statistics
+  - psychiatric-genomics
+  - pgc
+  - ptsd
+  - mental-health
+  - genetics
+  - genomics
+pretty_name: >-
+  PGC Post-Traumatic Stress Disorder GWAS Summary Statistics
+size_categories:
+  - 1M-10M
+configs:
+  - config_name: maltreatment2020
+    default: true
+    data_files:
+      - split: train
+        path: data/maltreatment2020/*.parquet
+  - config_name: ptsd2018
+    data_files:
+      - split: train
+        path: data/ptsd2018/*.parquet
+  - config_name: ptsd2019
+    data_files:
+      - split: train
+        path: data/ptsd2019/*.parquet
+  - config_name: ptsd2024
+    data_files:
+      - split: train
+        path: data/ptsd2024/*.parquet
+---
+
+# PGC Post-Traumatic Stress Disorder — GWAS Summary Statistics
+
+[![License: CC BY 4.0](https://img.shields.io/badge/License-CC_BY_4.0-lightgrey)](https://creativecommons.org/licenses/by/4.0/)
+
+## Dataset Description
+
+Genome-wide association study (GWAS) summary statistics for **Post-Traumatic Stress Disorder** phenotypes from the [Psychiatric Genomics Consortium (PGC)](https://pgc.unc.edu/).
+
+## Usage
+
+```python
+from datasets import load_dataset
+
+ds = load_dataset("OpenMed/pgc-ptsd", "maltreatment2020")
+print(ds)
+```
+
+## Subsets
+
+| Config | Phenotype | Journal | Year | PubMed | Rows |
+|--------|-----------|---------|------|--------|------|
+| `maltreatment2020` | Childhood Maltreatment | Translational Psychiatry | 2020 | [32066696](https://pubmed.ncbi.nlm.nih.gov/32066696/) | 22,008,240 |
+| `ptsd2018` | PTSD | Molecular Psychiatry | 2018 | [28439101](https://pubmed.ncbi.nlm.nih.gov/28439101/) | 59,901,811 |
+| `ptsd2019` | PTSD | Nature Communications | 2019 | [31594949](https://pubmed.ncbi.nlm.nih.gov/31594949/) | 46,179,924 |
+| `ptsd2024` | PTSD | Nature Genetics | 2024 | [38637617](https://pubmed.ncbi.nlm.nih.gov/38637617/) | 38,117,034 |
+
+## Terms of Use
+
+This dataset is released under **[CC BY 4.0](https://creativecommons.org/licenses/by/4.0/)**.
+
+1. Cite the original publication(s)
+2. Not attempt to re-identify individual participants
+3. Comply with PGC [data use policies](https://pgc.unc.edu/for-researchers/data-access/)
+
+## Source
+
+- [Psychiatric Genomics Consortium](https://pgc.unc.edu/)