Table 2.
Characteristics of reproducibility in psychiatry studies
| Characteristics | Variables | ||
| N (%) | 95% CI | ||
| Funding* (n=296) |
University | 14 (4.73) | — |
| Hospital | 2 (0.68) | — | |
| Public | 72 (24.3) | — | |
| Private/Industry | 16 (5.41) | — | |
| Non-profit | 3 (1.01) | — | |
| Mixed | 46 (15.54) | — | |
| No statement listed | 111 (37.5) | — | |
| No funding received | 32 (10.81) | — | |
| Conflict of interest statement (n=296) |
Statement, one or more conflicts of interest | 31 (10.47) | 7 to 13.9 |
| Statement, no conflict of interest | 146 (49.32) | 43.7 to 55 | |
| No conflict of interest statement | 119 (40.2) | 34.7 to 45.8 | |
| Data availability (n=211) |
Statement, some data are available | 14 (6.64) | 3.8 to 6.6 |
| Statement, data are not available | 0 (0) | 0 to 0 | |
| No data availability statement | 197 (93.36) | 90.5 to 93.4 | |
| Material availability (n=185) |
Statement, some materials are available | 22 (11.89) | 8.2 to 15.6 |
| Statement, materials are not available | 0 (0) | 0 to 0 | |
| No materials availability statement | 163 (88.11) | 84.4 to 91.8 | |
| Protocol available (n=211) |
Full protocol | 4 (1.90) | 0.4 to 3.4 |
| No protocol | 207 (98.10) | 96.6 to 99.6 | |
| Analysis scripts (n=211) |
Statement, some analysis scripts area available | 1 (0.47) | 0 to 1.3 |
| Statement, analysis scripts are not available | 0 (0) | 0 to 0 | |
| No analysis script availability statement | 210 (99.53) | 98.7 to 100 | |
| Replication studies (n=211) |
Reports a replication or novel study | 4 (1.90) | 0.4 to 3.4 |
| Does not report replication or novel study | 207 (98.10) | 96.6 to 99.6 | |
| Cited by meta-analysis or systematic review† (n=185) |
No citations | 119 (59.20) | 53.6 to 64.8 |
| A single citation | 39 (19.40) | 14.9 to 23.9 | |
| One–five citations | 39 (19.40) | 14.9 to 23.9 | |
| Greater than five citations | 4 (2.00) | 0.4 to 3.6 | |
| Preregistration (n=211) |
Statement, says was preregistration | 13 (6.16) | 3.4 to 8.9 |
| Statement, was not preregistration | 0 (0) | 0 to 0 | |
| No, there is no preregistration statement | 198 (93.84) | 91.1 to 96.6 | |
*Some studies included multiple funding sources.
†No studies were explicitly excluded from the systematic reviews that cited the original article.