Table 1 General characteristics
| Â | Reviews | Meta-analyses | Number of meta-analyses per DTA review | Number of pretest probabilities used per meta-analysisa |
|---|---|---|---|---|
| Â | n | n (% using a pretest probability) | Median (range) | Median (range) |
Cochrane DTA reviews | ||||
 Total included DTA reviews | 59 | 308 (48.1) | 3 (1–34) | 1 (1–6) |
 Reviews not using a pretest probability at all | 16 | 150 (0) | 4 (2–34) | -a |
 Reviews using a pretest probability for all pooled analyses | 39 | 143 (100) | 3 (1–16) | 1 (1–5) |
 Reviews reporting analyses with and without pretest probabilities | 4 | 15 (33.3) | 3.5 (3–5) | 3 (1–6) |