The mean difference ( 95 % confidence interval ) in GPs ' confidence in abstract findings was 0.2 ( -0.6 ; 1.0 ) ( P = 0.84 ) for abstracts reporting the funding source only versus no funding source or CoI ; -0.4 ( -1.3 ; 0.4 ) ( P = 0.39 ) for abstracts reporting the funding source and CoI versus no funding source and CoI ; and -0.6 ( -1.5 ; 0.2 ) ( P = 0.15 ) for abstracts reporting the funding source and CoI versus the funding source only .