Table 2. Mixed linear regression models predicting the moderating effect of the COVID-19 topic on peer-review duration.
| Linear mixed effect models | ||||
|---|---|---|---|---|
| M5 peer-review time (First authors) | M6 peer-review time (Last authors) | |||
| Predictors | Estimates | 99%CI | Estimates | 99%CI |
| Intercept | 71.62 | 64.09–79.14 | 72.06 | 64.50 – 79.61 |
| Institution Status (LR) | 0.60 | -0.40 – 1.61 | 0.55 | -0.49 – 1.59 |
| COVID-19 | -18.01 | -20.25 – -15.78 | -18.60 | -21.32 – -15.88 |
| Journal Impact Factor | -0.79 | -7.05 – 5.46 | -1.55 | -7.87 – 4.77 |
| Gender (male) | -0.27 | -1.34 – 0.81 | -0.47 | -1.61 – 0.66 |
| Gender (unknown) | 1.83 | 0.50 – 3.15 | 2.00 | 0.46 – 3.53 |
| Institution Status* COVID-19 | -5.49 | -7.94 – -3.05 | -5.43 | -8.03 – -2.83 |
| COVID-19 *Gender (male) | -3.20 | -5.97 – -0.43 | -2.22 | -5.35 – 0.90 |
| COVID-19 *Gender (unknown) | -1.97 | -5.53 – 1.59 | 1.02 | -3.08 – 5.11 |
| Random Effects | ||||
| σ2 | 840.97 | 833.47 | ||
| τ00 | 636.20 journal | 636.78 journal | ||
| ICC | 0.43 | 0.43 | ||
| N | 80 journals | 80 journals | ||
| Observations | 28970 | 26686 | ||
| Marginal R2 / Conditional R2 | 0.037 / 0.452 | 0.035 / 0.453 | ||
| AIC | 277689.924 | 255576.412 | ||