Summary of the results of multivariable logistic regression examining the association of study characteristics with the odds that the senior author is a man
| Parameter | OR | 95% CI | P value |
| COVID-19-related article | 0.96 | 0.78 to 1.19 | 0.71 |
| Original research or systematic review* | 1.55 | 1.27 to 1.90 | <0.001 |
| Corresponding author located in the USA† | 0.79 | 0.63 to 1.00 | 0.046 |
| Corresponding author located in Europe† | 1.11 | 0.81 to 1.52 | 0.52 |
*Relative to articles not reporting primary research.
†Relative to institutions not based in the USA or Europe.