Wing P, O’Grady ET, Langelier MH. Changes in the legal practice environment of NPs, 1992 to 2000. The American Journal for Nurse Practitioners. 2005;9(2):25-37.
This article summarizes the findings of a national study that documented changes in the legal practice environment for nurse practitioners (NPs) between 1992 and 2000. It describes a new NP Professional Practice Index (NP-PPI) for 2000 that more accurately reflects current practice environments than a previous index developed in 1992. In addition it examines relationships between the new NP-PPI scores for each state and the number of NPs, the number of physicians, and access to care for underserved populations.