Higher educated cancer patients get better treatment?

Today the quite shocking results of a Dutch research (led by epidemiologist Mieke Aarts) were published: it appears that higher educated cancer patients get better treatments (and because of that: higher survival rates) than lower educated cancer patients.
Reason for this is probably that the higher educated patients are more often actively looking for more information and probable treatments, raising the chance that they will find those treatments also. Besides, they probably have better (more 'equal') conversations with their doctors: doctors will explain them more, and the patients dare to discuss more with their doctors.
Advices that the researchers provide are: doctors should treat every patient the same way, and they should empathize more with the patient so that they can adapt their way of communication.