Table 1.
Characteristics of 215 included studies
| Characteristic | N (%) |
|---|---|
| Journal of publication | |
| New Engl J Med | 80 (37) |
| Lancet | 46 (21) |
| JAMA | 39 (18) |
| BMJ | 36 (17) |
| Ann Intern Med | 12 (6) |
| PLoS Med | 2 (1) |
| Year of publication | |
| 2005 | 109 (51) |
| 2006 | 106 (49) |
| Median number of randomised patients (IQR) | 425 (158-1041) |
| Multicentre trial | 163 (76) |
| Intervention | |
| Pharmacological | 131 (61) |
| Nonpharmacological | 74 (34) |
| Both | 10 (5) |
| Outcome | |
| Dichotomous | 100 (47) |
| Time to event | 67 (31) |
| Continuous | 48 (22) |
| Funding | |
| Only public | 126 (59) |
| Only private | 49 (23) |
| Both public and private | 38 (18) |
| Unclear | 2 (1) |
IQR=interquartile range.