Table 6

Changes in respiratory test results

		ARAS			Admission
		n	Initial mean		Discharge mean	Mean change	n	Initial mean	Discharge mean	Mean change
Changes between initial and discharge assessments
Respiratory rate (beats/min)	111	23.1	21.0	−2.1^6-165	47	24.0	21.6	−2.4^6-165
Peak expiratory flow (l)	107	175.3	215.6	40.3^6-165	41	146.8	168.8	21.9^6-160
FEV₁(l)	109	0.77	0.92	0.16^6-165	39	0.66	0.72	0.06
Oxygen saturation (%)	107	91.8	94.5	2.8^6-165	33	91.6	93.1	1.4^6-150

Changes between discharge and final assessments	n	Discharge mean	Final mean	Mean change	n	Discharge mean	Final mean	Mean change
Respiratory rate (beats/min)	70	20.4	20.6	0.2	22	22.3	21.7	−0.6
Peak expiratory flow (l/min)	70	233.3	220.7	−12.6	19	171.0	181.3	10.3
FEV₁(l)	71	0.99	1.05	0.06	18	0.80	0.94	0.14
Oxygen saturation (%)	72	94.6	93.8	−0.75	21	93.0	95.4	2.4^6-160