Table 1

Predictive values of clinical features5

	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Past history of myocardial infarction	59	86	44	92
Ingesting diuretic	73	41	19	89
Dyspnoea on exertion	100	17	18	100
Orthopnoea	22	74	14	83
Paroxysmal nocturnal dyspnoea	39	80	27	87
Oedema in history	49	47	15	83
Jugular venous pressure distension	17	98	64	86
Crackles	29	77	19	85
Gallop rhythm	24	99	77	87
Oedema on examination	20	86	21	85