From: Selective citation in scientific literature on the human health effects of bisphenol A
Variable | Categories | Crude OR | Adjusted OR* |
---|---|---|---|
Study outcome | |||
Significance | Yes vs no | 1.57 (1.28–1.92) | 1.48 (1.21–1.80) |
Authors’ conclusion | In line vs not in line with hypothesis | 1.57 (1.29–1.92) | 1.65 (1.34–2.03) |
Content-related determinants | |||
Study design | Narrative review | 1.00 (ref) | |
Cohort study | 1.61 (1.26–2.07) | ||
Cross-sectional study | 2.00 (1.64–2.44) | ||
Case-control study | 1.08 (0.84–1.38) | ||
Systematic review | 1.36 (0.99–1.87) | ||
Sample size ** | < 168 | 1 (ref) | 1.00 (ref) |
168–430 | 1.04 (0.88–1.22) | 1.00 (0.85–1.17) | |
> 430 | 1.62 (1.27–2.05) | 1.39 (1.12–1.74) | |
Title of publication | Suggestive title vs not suggestive title | 1.25 (1.07–1.45) | 1.16 (1.00–1.35) |
Not content-related determinants | |||
Number of affiliations** | < 3 | 1.00 (ref) | 1.00 (ref) |
3–5 | 1.46 (1.22–1.75) | 1.27 (1.04–1.56) | |
> 5 | 1.50 (1.24–1.82) | 1.32 (1.06–1.65) | |
Journal Impact Factor** | < 2.8 | 1.00 (ref) | 1.00 (Ref) |
2.8–4.6 | 1.21 (1.07–1.36) | 1.08 (0.96–1.22) | |
> 4.6 | 1.41 (1.22–1.63) | 1.22 (1.06–1.41) | |
Funding source | For-profit vs not-for-profit *** | NA | NA |
Not reported vs reported | 0.41 (0.31–0.55) | 0.74 (0.43–1.28) | |
Number of references** | < 46 | 1.00(ref) | 1.00 (ref) |
46–58 | 1.24 (1.08–1.42) | 1.10 (0.95–1.26) | |
> 58 | 0.75 (0.63–0.89) | 0.78 (0.65–0.92) | |
Author-related determinants | |||
Gender of corresponding author | Male vs Female | 1.00 (0.89–1.11) | 0.97 (0.86–1.09) |
Affiliation of corresponding author | Private vs public sector | 0.94 (0.75–1.17) | 1.31 (0.57–3.01) |
Authority of the authors** | < 3 | 1.00 (ref) | 1.00 (ref) |
3–26 | 2.21 (1.84–2.66) | 2.16 (1.78–2.63) | |
> 26 | 3.20 (2.59–3.96) | 3.32 (2.64–4.18) | |
Self-citation | Yes vs no | 5.14 (3.88–6.81) | 5.16 (3.81–6.99) |