Fig. 4From: Therapeutic outcome and related predictors of stereotactic body radiotherapy for small liver-confined HCC: a systematic review and meta-analysis of observational studiesForest plots of clinical parameters predicting OS in small HCC using SBRT. a The impact of Child–Pugh class on OS; b the impact of tumor size (including diameter and volume) on OS; c the impact of age on OS; d the impact of sex on OSBack to article page