a significant trendp < 0.0001
A significant trend in the reduction of implantation of mechanical vs. biological prostheses was observed during the study period ( p < 0.0001).
A significant trend in the reduction of implantation of mechanical vs. biological prostheses was observed during the study period ( p < 0.0001).
In this regard, our study shows a decreasing trend in the preference for mechanical prostheses both for the 40–49 years and for the 50–65 years age classes.