. Author manuscript; available in PMC: 2013 Nov 1.

Published in final edited form as: J Allergy Clin Immunol. 2012 Sep 29;130(5):1078–1084. doi: 10.1016/j.jaci.2012.07.058

Table V.

Mean Difference is ASUI scores by EPAC status for all visits

		ASUI
	#EPAC(% visits)	Mean difference^*	95% CI	P-value^*
Any EPAC	750(35)	0.09	0.01, 0.10	<0.0001
EPAC components
Peak flow drop	426(20)	0.08	0.06, 0.10	<0.0001
Rescue inhalers	414(19)	0.10	0.01, 0.12	<0.0001
Oral steroid use	168(8)	0.16	0.12, 0.20	<0.0001
Urgent care contact	103(6)	0.15	0.11, 0.20	<0.0001

2,155 follow-up visit periods evaluated among 390 participants

EPAC: Episodes of Poor Asthma Control.

ASUI: Asthma Symptom Utility Index

CI: Confidence Interval

Mean difference in scores between visits with an EPAC in the prior period and those without an EPAC, adjusted for visit period; repeated measures with independent correlation.