Table 4.

Spearman Correlation among the Respiratory Distress Observation Scale and Dyspnea Level as Perceived by Patients, Caregivers, and Bedside Nurses Assessment

		Patient's perception	Caregiver perception	Bedside nurse perception
Patient's perception	Coefficient	-	-	-
	P value
	N
Caregiver perception	Coefficient	0.68	-	-
	P value	<0.001
	N	135
Bedside nurse perception	Coefficient	0.50	0.58	-
	P value	<0.001	<0.001
	N	216	107
Respiratory Distress Observation Scale	Coefficient	0.35	0.36	0.21
	P value	<0.001	<0.001	0.002
	N	299	135	216