Again, that depends on how you measure the system and if you look for synergies. Here we have and emphasis on preventive medicine, because it saves cost. And since visits to the doctor are "free" (or already paid), people go to the doctor early. Also, self medication is less common. Since government negotiate medication process and can use generics, that also lowers cost. The obesity thing is an example. The lower obesity rates here are the result of preventive medicine.