Table 5 Comparison of postoperative IOP
From: Comparison of the Ahmed glaucoma valve with the Baerveldt glaucoma implant: a meta-analysis
Studies of subgroups | No. of studies | No. of eyes | WMD (95 % CI) | Heterogeneity | Test for over effect (P) | |
|---|---|---|---|---|---|---|
I2 (%) | P | |||||
Short-term follow-ups | ||||||
Total | 6 | 685 | 2.12 (0.72–3.52) | 49 | 0.08 | 0.003 |
Sensitivity analysis | 5 | 653 | 2.58 (1.70–3.46) | 0 | 0.60 | 0.000 |
RCT | 2 | 477 | 2.54 (1.54–3.53) | 0 | 0.38 | 0.000 |
Non-RCT | 4 | 208 | 1.68 (−1.27–4.63) | 64 | 0.04 | 0.26 |
Children | 1 | 31 | 5.00 (0.60–9.40) | / | / | 0.03 |
Adults | 3 | 509 | 1.44 (–0.76–3.65) | 74 | 0.02 | 0.20 |
Long-term follow-ups | ||||||
Total | 7 | 659 | 1.85 (0.43–3.28) | 44 | 0.1 | 0.01 |
Sensitivity analysis | 6 | 651 | 1.86 (0.30–3.41) | 53 | 0.06 | 0.02 |
RCT | 2 | 340 | 1.70 (0.70–2.69) | 0 | 0.49 | 0.001 |
Non-RCT | 5 | 319 | 2.18 (−0.91–5.27) | 60 | 0.04 | 0.17 |
Children | 3 | 85 | 3.42 (0.22–6.62) | 0 | 0.56 | 0.04 |
Adults | Same as RCT group | |||||