Table 3. Description of between-study heterogeneity*.
| Outcomes | No. Study | I2 (95% CIs) | H2 (95% CIs) | P-Value |
|---|---|---|---|---|
| BCVA (learning curve) | 4 | 92% (83%, 96%) | 12.55 (5.81, 27.10) | <0.001 |
| BCVA (non-learning curve) | 9 | 0% (0%, 65%) | 1.00 (0.35, 2.84) | 0.446 |
| BCVA (overall) | 13 | 74% (55%, 85%) | 3.84 (2.22, 6.66) | <0.001 |
| BCVA (1-month) | 2 | 79% (11%, 95%) | 4.87 (1.13, 21.04) | 0.027 |
| BCVA (3-month) | 5 | 90% (79%, 95%) | 9.74 (4.73, 20.04) | <0.001 |
| BCVA (6-month) | 9 | 76% (53%, 87%) | 4.09 (2.12, 7.87) | <0.001 |
| BCVA (12-month) | 4 | 0% (0%, 85%) | 1.00 (0.15, 6.53) | 0.476 |
| ECD (learning curve) | 3 | 90% (74%, 96%) | 10.08 (3.78, 26.89) | <0.001 |
| ECD (non-learning curve) | 7 | 81% (62%, 91%) | 5.33 (2.65, 10.75) | <0.001 |
| ECD (overall) | 10 | 93% (89%, 95%) | 13.56 (8.69, 21.14) | <0.001 |
| ECD (3-month) | 1 | N/A | N/A | N/A |
| ECD (6-month) | 10 | 94% (90%, 96%) | 15.49 (10.11, 23.74) | <0.001 |
| ECD (12-month) | 4 | 81% (51%, 93%) | 5.35 (2.05, 13.95) | 0.001 |
| Graft detachment (learning curve) | 5 | 0% (0%, 79%) | 1.00 (0.21, 4.81) | 0.967 |
| Graft detachment (non-learning curve) | 5 | 52% (0%, 82%) | 2.09 (0.77, 5.68) | 0.079 |
| Graft detachment (overall) | 10 | 8% (0%, 65%) | 1.09 (0.41, 2.90) | 0.364 |
| Graft rejection | 9 | 68% (36%, 84%) | 3.13 (1.55, 6.28) | <0.001 |
| Graft failure | 5 | 38% (0%, 77%) | 1.62 (0.60, 4.35) | 0.15 |
| High IOP | 4 | 0% (0%, 85%) | 1.00 (0.15, 6.53) | 0.852 |
| Tissue loss | 2 | 0% (0%, 100%) | 1.00 (N/A) | 0.405 |
BCVA = best corrected visual acuity; ECD = endothelial cell density; IOP = intraocular pressure; CI = confidence interval; N/A = not applicable.
*: Random-effects model (standard DerSimonian-Laird) was used.