Fig. 6

Subgroup analysis showing the effect of different stem cells on BCVA at month 6. The risk ratio of hESC-RPE in the fixed-effects model between post-operative and preoperative groups in BCVA after 6 months was 12.00 (95% confidence interval [CI] 1.80–79.82, P = 0.01). The risk ratio of ADSCs in the fixed-effects model between post-operative and preoperative groups in BCVA after 6 months was 23.67 (95% CI 4.87–114.93, P < 0.0001). The risk ratio of BM with CD34 + SCs in the fixed-effects model between post-operative and preoperative groups in BCVA after 6 months was 12.00 (95% CI 1.75–82.06, P = 0.01)