Unadjusted predictors of a discordant review article recommendation compared to the contemporary guideline
| Predictor variables | 2001–2011 | 2012–2015 | ||
| Coefficient (95% CI) | p-value | Coefficient (95% CI) | p-value | |
| NA versus European corresponding author | −0.15 (−0.50–0.20) | 0.41 | −0.02 (−0.30–0.26) | 0.88 |
| Year of publication# | 0.13 (0.07–0.18) | <0.0005 | 0.20 (0.08–0.33) | 0.001 |
| MD versus other degree for corresponding author | −0.03 (−0.60–0.54) | 0.92 | 0.12 (−0.25–0.50) | 0.52 |
| Conflict of interest reported | 0.17 (−0.20–0.54) | 0.38 | 0.02 (−0.32–0.37) | 0.89 |
| Funding sources reported | −0.12 (−0.57–0.33) | 0.60 | −0.03 (−0.33–0.27) | 0.84 |
| Number of IPF publications by corresponding author | 0.02 (−0.01–0.05) | 0.25 | 0.01 (0–0.18) | 0.11 |
| Respiratory journal | −0.17 (−0.55–0.21) | 0.38 | −0.32 (−0.58– −0.06) | 0.02 |
| Journal impact factor, available | −0.34 (−0.71–0.04) | 0.08 | −0.07 (−0.35–0.20) | 0.60 |
| Journal impact factor, raw value | 0.01 (−0.03–0.05) | 0.53 | 0.04 (0.01–0.08) | 0.02 |
| Cited 2000 guideline | 0.26 (−0.15–0.67) | 0.21 | 0.46 (0.18–0.74) | 0.001 |
| Cited 2011 guideline | −0.21 (−0.52–0.08) | 0.15 | ||
| DISCERN score¶ | 0.12 (−0.12–0.37) | 0.33 | 0.11 (−0.07–0.29) | 0.23 |
All coefficients are based on a Poisson analysis. NA: North American; MD: medical doctor; IPF: idiopathic pulmonary fibrosis. #: independent predictor of discordant recommendation for 2001–2011 and 2012–2015; ¶: per 10-unit change in DISCERN score.