>ROSALSKY: The main argument against allowing NPs to practice independently is that they have less training than physicians. But there’s a mountain of empirical evidence from randomized trials, case studies, systematic reviews, and analyses of malpractice claims in states where similar legislation has already passed that all points to the same thing: when it comes to primary care, NPs are just as safe and effective as doctors.
from a recent freakonomics episode
http://freakonomics.com/podcast/nurses-to-the-rescue/
>ROSALSKY: The main argument against allowing NPs to practice independently is that they have less training than physicians. But there’s a mountain of empirical evidence from randomized trials, case studies, systematic reviews, and analyses of malpractice claims in states where similar legislation has already passed that all points to the same thing: when it comes to primary care, NPs are just as safe and effective as doctors.
there are links in the transcript.