Can Peak Expiratory Flow Measurements Differentiate Chronic Obstructive Pulmonary Disease from Congestive Heart Failure?

Table 1

Patients enrolled in study.

Age	Predicted peak flow	Measured peak flow	% Predicted	Discharge Dx
64	550	132	24.0%	CHF
33	650	420	64.6%	CHF
87	402	175	43.5%	CHF
66	430	190	44.2%	CHF
41	650	370	56.9%	CHF
71	552	240	43.5%	CHF
71	416	70	16.8%	CHF
73	410	325	79.3%	CHF
57	605	180	29.8%	CHF
59	542	310	57.20%	CHF
59	542	310	57.20%	CHF
60	591	200	33.84%	CHF
65	550	125	22.7%	COPD
52	466	225	48.3%	COPD
64	572	85	14.86%	COPD
55	418	60	14.35%	COPD
50	602	240	39.87%	COPD
67	554	100	18.05%	COPD