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Table 2 Modifier

From: EVITA: a tool for the early EValuation of pharmaceutical Innovations with regard to Therapeutic Advantage

NNT

ARR

Modifier

prevention

  

<20

5-100%

2.0

20 - <50

<5%

1.75

50 - <100

<2%

1.5

100 - <175

<1%

1.25

175 - <300

<0.57%

1.0

300 - <500

<0.33%

0.75

500 - <1000

<0.2%

0.5

≥1000

<0.1%

0.25

treatment

  

NNT

ARR

Modifier

<3

>30%

2.0

3 - <10

10-30%

1.5

≥10

<10%

1.0

  1. Assessment of the modifier for the efficiency score according to strength of effect given in "number needed to treat" (NNT) or "absolute risk reduction" (ARR).
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BMC Clinical Pharmacology

ISSN: 1472-6904