|  | Univariable | Multivariableb | |||||
---|---|---|---|---|---|---|---|---|
Explanatory variables | Category/unit | B | 95% CI | P value | QICCa | B | 95% CI | P value |
Structure format | IMRaD | Reference | Â | Â | Â | Reference | Â | Â |
HS | 0.66 | (0.15, 1.16) | 0.011 | 620.2 | 0.54 | (0.06, 1.03) | 0.028 | |
Journal type | General | Reference | Â | Â | Â | Â | Â | Â |
 | Specialty | −0.30 | (−0.86, 0.25) | 0.285 | 650.3 |  |  |  |
Continent | Â | Â | Â | 0.838 | 651.0 | Â | Â | Â |
 | Europe | Reference |  |  |  |  |  |  |
 | North America | −0.16 | (−0.55, 0.22) | 0.408 |  |  |  |  |
 | Asia | −0.28 | (−0.86, 0.31) | 0.353 |  |  |  |  |
 | Oceania | 0.20 | (−0.63, 1.03) | 0.638 |  |  |  |  |
 | Others | −0.23 | (−1.29, 0.84) | 0.677 |  |  |  |  |
Publication year | 1 year | 0.09 | (−0.06, 0.25) | 0.224 | 652.7 |  |  |  |
No. of centres | Single centre | Reference | Â | Â | Â | Reference | Â | Â |
 | Multi-centre | 0.42 | (0.16, 0.68) | 0.002 | 623.9 | 0.36 | (0.08, 0.64) | 0.013 |
Funded | No | Reference | Â | Â | Â | Reference | Â | Â |
 | Yes | 0.69 | (0.39, 0.99) | <0.001 | 625.5 | 0.57 | (0.24, 0.90) | 0.001 |