[Table], Table 9. Number Needed to Treat (NNT) as a function of risk ratio and population mortality risk - Pharmacologic Management of Heart Failure and Left Ventricular Systolic Dysfunction

Population Mortality Risk	Risk Ratio
	0.5	0.6	0.7	0.8	0.9

0.1	20	25	34	50	100

0.2	10	13	17	25	50

0.3	7	9	12	17	34

0.4	5	7	9	13	25

0.5	4	5	7	10	20

Cover of Pharmacologic Management of Heart Failure and Left Ventricular Systolic Dysfunction

Pharmacologic Management of Heart Failure and Left Ventricular Systolic Dysfunction: Effect in Female, Black, and Diabetic Patients, and Cost-Effectiveness.

Evidence Reports/Technology Assessments, No. 82.

Shekelle P, Morton S, Rich M, et al.

Rockville (MD): Agency for Healthcare Research and Quality (US); 2003 Jul.

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