Transportability of Fixed-Horizon Survival Prediction in Uterine Serous Carcinoma Under Cohort Shift: Bi-directional Internal–External Validation of a Clinicopathologic Model With and Without the USC73 Molecular Signature

This release provides a fully reproducible analysis pipeline for **bi-directional internal–external validation (transportability)** of fixed-horizon survival prediction models in **uterine serous carcinoma**, comparing **clinicopathologic (Base)** models vs **Base+USC73 (Extended)**, with robust handling of censoring (IPCW), calibration, and clinical utility. **Zenodo record (Version v1.0, published 2026-01-11):** DOI **10.5281/zenodo.18213672** **License:** CC-BY-4.0 **Zenodo archive checksum:** md5 **9a61294ae034982ea22aeda7e89e992d** (From the Zenodo software record metadata.) --- ### How to cite (required)If you use this repository, **please cite the Zenodo software DOI**: **Adetunji, Sunday A., Oyewusi, Rhoda O., & Tantray, Shoborose. (2026).** *Transportability of Fixed-Horizon Survival Prediction in Uterine Serous Carcinoma Under Cohort Shift: Bi-directional Internal–External Validation of a Clinicopathologic Model With and Without the USC73 Molecular Signature (v1.0)* [Software]. Zenodo. **https://doi.org/10.5281/zenodo.18213672** A machine-readable citation is included in `CITATION.cff` (recommended for GitHub/Zenodo indexing). **DOI badge (add to README if desired):**```md[](https://doi.org/10.5281/zenodo.18213672)Scientific scope (what this pipeline does)Bi-directional transportability evaluation: TCGA→UPSC and UPSC→TCGA