Table 7.
Characteristics of published and unpublished completed trials. Values are numbers (percentages) unless stated otherwise
| Characteristics | Unpublished (n=106) | Published (n=208) | Total (n=314) | P value |
|---|---|---|---|---|
| Funding: | ||||
| Non-industry | 49 (27) | 133 (73) | 182 | 0.003 |
| Industry | 57 (43) | 75 (57) | 132 | |
| Intervention: | ||||
| Operative | 8 (27) | 22 (73) | 30 | 0.686 |
| Device | 28 (34) | 54 (66) | 82 | |
| Pharmacological | 70 (35) | 132 (65) | 202 | |
| No of centres: | ||||
| Single centre | 56 (30) | 130 (70) | 186 | 0.398 |
| Multicentre | 39 (35) | 73 (65) | 112 | |
| Missing | 11 (69) | 5 (31) | 16 | |
| Sample size: | ||||
| <100 patients | 54 (37) | 91 (63) | 145 | 0.225 |
| ≥100 patients | 51 (31) | 115 (69) | 166 | |
| Missing | 1 (33) | 2 (67) | 3 | |
| Recruitment: | ||||
| National | 87 (32) | 186 (68) | 273 | 0.678 |
| International | 10 (36) | 18 (64) | 28 | |
| Missing | 9 (69) | 4 (31) | 13 | |
| Blinding: | ||||
| None | 32 (36) | 58 (64) | 90 | 0.234 |
| Single* | 32 (40) | 48 (60) | 80 | |
| Double | 41 (29) | 100 (71) | 141 | |
| Missing | 1 (33) | 2 (67) | 3 |
Percentages total across rows.
*Investigator, assessor, or patient blinding.