Table 2 Demographic Information for the 46 Included Articles
| Demographic | Article % |
|---|---|
| Funding source | |
| private | 50.0% (23/46) |
| public | 43.5% (20/46) |
| not mentioned/other | 21.7% (10/46) |
| industry | 10.9% (5/46) |
| hospital | 4.3% (2/46) |
| Study design | |
| parallel arm | 73.7% (35/46) |
| crossover | 13.0% (6/46) |
| factorial | 8.7% (4/46) |
| Intervention | |
| pharmacological | 76.1% (35/46) |
| non-pharmacological | 23.9% (11/46) |
| Blinding | |
| no blinding/not specified | 69.6% (32/46) |
| double-binded | 21.7% (10/46) |
| single-blinded | 8.7% (4/46) |
| Stated adherence to TIDieR | |
| no | 100% (46/46) |
| yes | 0% (0/46) |