Test–retest reliability of multidimensional dyspnea profile recall ratings in the emergency department: a prospective, longitudinal study

Table 3 Test–retest reliability of MDP recall ratings (single items and domains)

	Time 0a–0b (n = 141–145)			Time 0a–0c(n = 67–68)
	ICC^a	95% CI		ICC^a	95% CI
		Lower	Upper		Lower	Upper
*Immediate Perception* items
Intensity^b	0.75	0.67	0.82	0.50	0.30	0.66
Unpleasantness^b	0.80	0.72	0.86	0.55	0.36	0.70
Muscle work/Effort ^b	0.77	0.69	0.83	0.45	0.24	0.62
Not enough air/Smothering/Air hunger^b	0.80	0.73	0.86	0.43	0.21	0.60
Mental effort/Concentration^b	0.78	0.71	0.84	0.53	0.34	0.68
Tight/Constricted^b	0.73	0.65	0.80	0.35	0.12	0.54
Breathing a lot (rapid, deep, heavy)^b	0.70	0.60	0.77	0.28	0.04	0.49
Immediate Perception Domain (Mean of 7 items) ^c	0.93	0.90	0.95	0.72	0.54	0.83
*Emotional Response* items
Depressed^b	0.77	0.69	0.83	0.59	0.41	0.72
Anxious^b	0.81	0.74	0.86	0.51	0.32	0.67
Frustrated^b	0.70	0.60	0.78	0.47	0.26	0.63
Angry^b	0.86	0.81	0.90	0.50	0.29	0.66
Afraid^b	0.87	0.83	0.91	0.66	0.50	0.78
Emotional Response Domain (Mean of 5 items) ^c	0.94	0.92	0.96	0.78	0.65	0.87

^aICC = intraclass correlation coefficient: 2-way mixed ANOVA with subjects as random factor and test–retest interval as fixed factor.
^bSingle-measures, absolute agreement.
^cAverage measures, absolute agreement.
Time 0a: dyspnea at time of decision to come to ED recalled at enrollment during ED visit.
Time 0b: dyspnea at time of decision to come to ED recalled 1 hr after enrollment during ED visit.
Time 0c: dyspnea at time of decision to come to ED recalled at follow-up visit 4–6 weeks after ED visit.

ISSN: 1471-227X