TABLE 3

Unadjusted predictors of a concordant review article recommendation compared to the contemporary guideline

Predictor variables2001–20112012–2015
Coefficient (95% CI)p-valueCoefficient (95% CI)p-value
NA versus European corresponding author−0.19 (−0.51–0.14)0.260.26 (−0.12–0.63)0.18
Year of publication0.001 (−0.05–0.05)0.970.01 (−0.16–0.18)0.91
MD versus other degree for corresponding author0.31 (−0.46–1.09)0.43−0.17 (−0.61–0.26)0.43
Conflict of interest reported−0.11 (−0.42–0.20)0.490.03 (−0.37–0.43)0.88
Funding sources reported−0.28 (−0.71–0.15)0.20−0.23 (−0.66–0.21)0.31
Number of IPF publications by corresponding author−0.01 (−0.05–0.03)0.60−0.02 (−0.04–0)0.05
Respiratory journal0.12 (−0.19–0.44)0.44−0.16 (−0.56–0.23)0.42
Journal impact factor, available−0.07 (−0.40–0.26)0.690 (−0.38–0.38)1.00
Journal impact factor, raw value−0.01 (−0.06–0.04)0.68−0.03 (−0.11–0.04)0.42
Cited 2000 guideline0.43 (0.09–0.76)0.010.38 (−0.01–0.77)0.06
Cited 2011 guideline0.05 (−0.55–0.66)0.86
DISCERN score#,¶0.26 (0.07–0.45)0.0070.37 (0.07–0.68)0.02

All coefficients are based on a Poisson analysis. NA: North American; MD: medical doctor; IPF: idiopathic pulmonary fibrosis. #: independent predictor of concordant recommendation for 2001–2011 and 2012–2015; : per 10-unit change in DISCERN score.