Table 1 Characteristics of included studies
Variable | Number (%) |
|---|---|
Overall | 227 (100) |
Journal | |
 PAFS* | 42 (18.5) |
 BMJ Open** | 71 (31.1) |
 Trials | 114 (50.2) |
Year of publication | |
 2013 | 34 (15.0) |
 2014 | 37 (16.3) |
 2015 | 34 (15.0) |
 2016 | 50 (22.0) |
 2017 | 72 (31.7) |
Region | |
 North America | 43 (18.9) |
 Europe | 120 (52.9) |
 Other | 64 (28.2) |
Funding | |
 Industry | 52 (24.5) |
 Government or private | 160 (75.5) |
Intervention type | |
 Pharmacological | 35 (15.4) |
 Non-pharmacological | 191 (84.1) |
Feasibility outcomes (yes) | 123 (54.2) |
Sample size reported (yes) | 220 (96.9) |
Sample size | |
 Small (n = 0–60) | 143 (64.7) |
 Large (n > 60) | 78 (35.3) |
Sample size justification | |
 Adequate | 99 (44.8) |
 Inadequate | 122 (55.2) |