Relative CBF in low- and high-grade tumors with associated results from meta-analysis of mean dataa
| Study | High-Grade Tumors | Low-Grade Tumors | Weight | Mean Difference, IV, Random-Effects 95% CI (rCBF) | ||||
|---|---|---|---|---|---|---|---|---|
| Mean rCBF | SD | Total (No.) | Mean rCBF | SD | Total (No.) | |||
| Dangouloff-Ros et al, 201527 | 3.4 | 0.99 | 2 | 0.9 | 0.26 | 7 | 7.10% | 2.50 (1.11–3.89) |
| Dangouloff-Ros et al, 201617 | 1.74 | 1.45 | 65 | 0.68 | 0.24 | 52 | 37.50% | 1.06 (0.70–1.42) |
| Hales et al, 201328 | 0 | 0 | 0 | 0 | 0 | 0 | Not estimable | |
| Kikuchi et al, 201733 | 1.76 | 0.95 | 7 | 0.69 | 0.81 | 11 | 15.40% | 1.07 (0.22–1.92) |
| Liu et al, 201529 | 0 | 0 | 0 | 0 | 0 | 0 | Not estimable | |
| Morana et al, 201730 | 2.08 | 0.98 | 14 | 0.81 | 0.56 | 12 | 23.90% | 1.27 (0.67–1.87) |
| Yeom et al, 201432 | 2.98 | 1.9 | 21 | 1.12 | 0.36 | 32 | 16.20% | 1.86 (1.04–2.68) |
| Total (95% CI) | 109 | 114 | 100% | 1.34 (0.95–1.74) | ||||
Note:—IV indicates inverse variance.
↵a Heterogeneity: τ2 = 0.13, χ2 = 9.28, df = 5 (P = .10); I2 = 46%; Test for overall effect: Z = 5.94 (P < .00001).