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(A) Forest plot of odds ratio (OR) of LRF in comparison of LD-RT group to HD-RT group; Publication bias: Begg's test, P = 0.85; Egger's test, P = 0.95. (B) Forest plot of odds ratio (OR) of LRF in comparison of LD-RT subgroup (<circa 60 Gy) to HD-RT subgroup (≥circa 60 Gy). (C) Forest plot of odds ratio (OR) of LRF in comparison of LD-RT subgroup (≤ 50.4 Gy) to HD-RT subgroup (>50.4 Gy). Cl, confidence interval; HD, high dose; LD, low dose; RT, radiotherapy.
