Table 4.
Adjusted Logistic Regression Analysis of Association of Key Study Characteristics with Publication Status
| Characteristic | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| OR (95% CI) | P value | OR (95% CI) | P value | |
| Time of registration | ||||
| 2003–2013.06 | 1 | |||
| 2013.06–2023 | 0.982 (0.498–1.937) | 0.959 | ||
| Intervention | ||||
| Nonpharmacological related | 1 | |||
| Pharmacological related | 0.637 (0.303–1.342) | 0.236 | ||
| Arm | ||||
| 2 | 1 | |||
| 3 | 2.654 (0.747–9.427) | 0.131 | ||
| ≥4 | 2.095 (0.238–18.455) | 0.505 | ||
| Blinding | ||||
| None or open label | 1 | |||
| Single | 1.514 (0.371–6.179) | 0.564 | ||
| Double or more | 0.703 (0.328–1.505) | 0.364 | ||
| Funder type | ||||
| None or departmental | 1 | |||
| Industry or other external | 0.470 (0.242–0.915) | 0.026* | ||
| Recruitment | ||||
| Single center | 1 | |||
| Multicenter | 1.019 (0.523–1.987) | 0.956 | ||
| No. of participants | ||||
| <350 | 1 | |||
| ≥350 | 1.806 (0.799–4.086) | 0.156 | ||
| PI region | ||||
| Nonhigh SDI | 1 | |||
| High SDI | 1.129 (0.533–2.391) | 0.751 | ||
| PI region | ||||
| <90 | 1 | |||
| ≥90 | 7.589 (0.983–58.609) | 0.052 | ||
| PI region | ||||
| High income | 1 | |||
| Nonhigh income | 0.918 (0.415–2.030) | 0.833 | ||
| PI region | ||||
| North America | 1 | |||
| Europe | 1.085 (0.450–2.614) | 0.856 | ||
| Other | 0.771 (0.366–1.621) | 0.492 | ||
*
P < 0.05