Table 4.
Quantitative comparison of average ADC among studies included in the meta-analysis.
| Study | Average ADC (×10–6 mm2/s) ± SD (number of patients) |
p-Values | |
|---|---|---|---|
| HPV positive | HPV negative | ||
| Chan et al.8 | 975 ± 168 (n = 28) | 1225 ± 242 (n = 12) | 0.0006 |
| De Perrot et al.9—1.5 Ta | 989 ± 188 (n = 12) | 1158 ± 183 (n = 33) | 0.004 |
| De Perrot et al.9—3 Ta | 1046 ± 167 (n = 9) | 1201 ± 157 (n = 51) | 0.02 |
| Driessen et al.10 | 1327 ± 267 (n = 6) | 1740 ± 338 (n = 67) | 0.005 |
| Nakahira et al.25 | 987 ± 156 (n = 12) | 1218 ± 214 (n = 14) | 0.002 |
| Wong et al.26 | 1150 ± 180 (n = 12) | 1160 ± 140 (n = 8) | 0.93 |
a
De Perrot et al. reported the average ADC values for the 1.5 and 3 T scanners separately.
ADC: apparent diffusion coefficient; SD: standard deviation.