. Author manuscript; available in PMC: 2013 Jun 28.

Published in final edited form as: J Prim Care Community Health. 2011 Sep 7;3(1):23–28. doi: 10.1177/2150131911412783

Table 2.

IRRs for ED Visits as a Function of Age at Study Entry and Dementia Status

	IRR	Z	P > (Z)	95% CI
Dementia status	1.49	2.28	.023	1.06	2.09
Age	1.01	0.96	.335	0.98	1.04

Abbreviation: ED, emergency department; IRRs, incidence rate ratios.