Sometimes this kind of research is as complex and time consuming, that when the results are available things have already changed. Although we can learn which things were done good, which were not, which are the risks involved, and which must not be repeated. Once you forget history you repeat the same mistakes. Economic incentives to the providers are very dangerous in the field of health. They can promote either over-treatment to increase providers benefits or deny care needed to increase HMO s profits.
Many ethical questions have to be asked and answered.
While incentives exist as they do today, effective controls must be designed. Politicians, control agencies and all the health industry actors should develop new laws to protect patient rights and prevent abuses. They are not going to be perfect and there is no unique solution, but we have to act right now. The health market is known as an imperfect market, and the principal reason is the information available to the actors. This will help users to make a more reasonable and informed decision.