Table 3.
Prevalence of the AOB.
| Subgroup | Number of studies (total number of patients) | Pooled prevalence of AOB: % (95% CI) | Level of heterogeneity determined using I-squared: % (95% CI) | Level of heterogeneity determined using Cochran’s Q: p-value |
|---|---|---|---|---|
| Overall* | 11 studies (n = 3685) | 1.7% (0.9, 2.9) | 76.5% (57.9, 86.9) | p < 0.001 |
| Radiological | 10 studies (n = 3485) | 1.8% (0.9, 3.0) | 78.3% (60.5, 88.1) | p < 0.001 |
| CT | 4 studies (n = 1417) | 1.4% (0.4, 3.0) | 62.4% (20.6, 90.2) | p = 0.031 |
| Angiography | 6 studies (n = 2068) | 1.9% (0.5, 4.0) | 81.4% (67.0, 92.4) | p < 0.001 |
CT = computed tomography; CI = confidence interval.
*Includes cadaveric results.