borderline significantP = .058
CD-GRS showed a borderline significant decrease ( P = .058) in multivariate analysis post 1990 but only when excluding surgery in the model; surgery significantly decreased post 1990 in both CD and UC.
CD-GRS showed a borderline significant decrease ( P = .058) in multivariate analysis post 1990 but only when excluding surgery in the model; surgery significantly decreased post 1990 in both CD and UC.
However, when we excluded surgery from multivariate analysis, the beta-coefficient decreased from −0.097 to −0.412 (95% CI −0.838 to 0.0137) with a trend toward significance ( P = .058) suggesting that a lower genetic risk threshold may be permissible for disease to develop in more recent decades.