Predictive clinical and dosimetric parameters for risk of relapse in early-stage non-small cell lung cancer treated by SBRT: A large single institution experience

•Impact of dosimetric parameters on efficacy of SBRT in ES-NSCLC, using HyTEC reporting standards.•A large cohort from a single institution to ensure consistent treatment methods.•This study could potentially resolve many errors that can occur in pooled studies.•A higher percent of GTV receiving ≥110 % of the prescribed dose and a higher GTV Dmax (BED10) seem to allow a better LC.•This is the first study to report the benefit of the percentage of GTV receiving ≥110 % of the prescribed dose on LC.