Variables | Total number of items reported | |||
---|---|---|---|---|
Univariate analysis | Multivariate analysis | |||
Incidence rate ratio (95 % CI) | p | Adjusted incidence rate ratio (95 % CI) | p | |
Journal field | ||||
- General medicine | 33.11 (9.72–112.73) | < .001 | 1.19 (1.00–1.41) | .052 |
- Infectious diseases | Â | Â | 1 | Â |
CONSORT endorsement | ||||
- Non endorser journals | Â | Â | 1 | Â |
- Endorser journals | 11.22 (3.90–32.27) | < .001 | 1.01 (0.85–1.21) | .900 |
Abstract format | ||||
- One-block | Â | Â | 1 | Â |
- IMRAD | 20.69 (6.94–61.61) | < .001 | 1.11 (0.81–1.51) | .524 |
- Eight-heading | 57.81 (14.64–228.23) | < .001 | 1.28 (1.00–1.67) | .061 |
Pharmacological/Vaccine intervention | ||||
- Yes | Â | Â | 1 | Â |
- No | 0.40 (0.11–1.42) | .155 | 1.19 (1.03–1.37) | .015 |
Journal impact factor | ||||
- <10 | Â | Â | 1 | Â |
- ≥10 | 511.06 (186.40–1401.21) | < .001 | 2.16 (1.83–2.54) | < .001 |
Number of authors | ||||
- Less than 6 | Â | Â | 1 | Â |
- 7–12 | 3.81 (0.75–19.41) | .108 | 1.18 (0.98–1.48) | .140 |
- More than 13 | 89.74 (15.30–526.36) | < .001 | 1.39 (1.07–1.79) | .013 |
Publication on behalf of a collaboration research group | ||||
- No | Â | Â | 1 | Â |
- Yes | 13.09 (3.50–48.97) | < .001 | 0.99 (0.88–1.11) | .867 |