Are There Datasets About Healthcare For Doing Regression?

Hello there, I’m doing a project about how to solve healthcare prediction problems (like regression or binary classification) with machine learning, specifically tree-based models.

I just can find binary classification problems (like, does this person have cancer or not), but any about predicting a numerical value.

Is there any dataset, preferibily educational, related with medicine/healthcare, whose target is numerical? Also whose relation between features and targets are not too simple like a linear one that with the right tools like XGBoosRegressor I can make good predictions (that is, that not all features are non-informative)?

Thanks so much.