Table 2.

Comparison of emergency presentations pre-/post-NP role implementation

	Case 1	Case 2	Case 3
Practice volume 2007/2008	3,660	2,500	1,200
Total number emergency visits 7 months 2007/2008	1,880	1,387	451
Practice volume 2011	4,048	1,850	1,954
Total number emergency visits 7 months 2011	1,300	612	391
% Decrease in emergency visits between 2007/2008 and 2011	37.5%	40.4%	46.8%
P value (two-tailed) P <0.05	0.000	0.000	0.000
Eta squared	0.85	0.74	0.93