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Table 2 Chances of cardiovascular event with or without statin over 5-year and 10-year spans

From: Communicating statin evidence to support shared decision-making

5 % 10-year risk

7.5 % 10-year risk

10 % 10-year risk

15 % 10-year risk

20 % 10-year risk

30 % 10-year risk

with statin

without statin

with statin

without statin

with statin

without statin

with statin

without statin

with statin

without statin

with statin

without statin

3.75 %

5 %

5.63 %

7.5 %

7.5 %

10 %

11.25 %

15 %

15 %

20 %

22.5 %

30 %

ARR = 1.25 %

ARR = 1.88 %

ARR = 2.5 %

ARR = 3.75 %

ARR = 5 %

ARR = 7.5 %

NNT = 80

NNT = 53

NNT = 40

NNT = 27

NNT = 20

NNT = 13

2.5 % 5-year risk

3.75 % 5-year risk

5 % 5-year risk

7.5 % 5-year risk

10 % 5-year risk

15 % 5-year risk

with statin

without statin

with statin

without statin

with statin

without statin

with statin

without statin

with statin

without statin

with statin

without statin

1.88 %

2.5 %

2.81 %

3.75 %

3.75 %

5 %

5.63 %

7.5 %

7.5 %

10 %

11.25 %

15 %

ARR = 0.63 %

ARR = 0.94 %

ARR = 1.25 %

ARR = 1.88 %

ARR = 2.5 %

ARR =3.75 %

NNT = 160

NNT = 107

NNT = 80

NNT = 53

NNT = 40

NNT = 27

  1. Based on 25 % relative risk reduction (Taylor, 2013)
  2. ARR absolute risk reduction, NNT number needed to treat