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Table 1 Participant inclusion and exclusion criteria

From: Development and validation of prognostic models for anal cancer outcomes using distributed learning: protocol for the international multi-centre atomCAT2 study

Inclusion criteria

•Radical intent external beam radiotherapy treatment for primary anal squamous cell carcinoma, with or without concomitant chemotherapy

•Radiotherapy delivered using modern radiotherapy techniques (3D-CRT, IMRT or VMAT)

Exclusion criteria

•Palliative treatment

•Prior pelvic radiotherapy

•Brachytherapy (either primary or as boost treatment)

  1. 3D-CRT Three-dimensional conformal radiation therapy, IMRT Intensity-modulated radiation therapy, VMAT Volumetric modulated arc therapy