Fig. 2
A For the 373 RB infants, Kaplan–Meier survival analysis indicated that the median survival time of RB infants was 20.53 months, with 95% CI of 16.969–24.082. B Kaplan-merier analysis showed that the OS of infants with binocular disease was lower than that of infants with unilateral eye disease (99.4% vs 96.2%, χ2 = 4.188, P = 0.041). C Kaplan-merier analysis indicated that stage E in left eye had the worst prognosis, which was statistically different from other stages (91.5% vs 93.1%, χ2 = 5.579, P = 0.016). D Survival analysis of recurrence and prognosis showed that the prognosis of infants with recurrence was worse than that of infants without recurrence (χ.2 = 6.14, P = 0.013)