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Table 1 Risk index adapted from Kaminski et al. [6] with updated definitions to include participants older than 66 years

From: Evaluation of a clinical risk index for advanced colorectal neoplasia among a North American population of screening age

Risk factor

Category

Score

Age, years

40–49

0

 

50–54

1

 

55–59

2

 

60–66

3

 

>66

3

Sex

Female

0

 

Male

2

Family history

None

0

 

1 first-degree relative ≥ 60 years old

1

 

1 first-degree relative < 60 years old

2

 

2 first-degree relatives

2

Smoking, pack years

None

0

 

<10

0

 

10–19

1

 

≥20

1

BMI, kg/m2

<25

0

 

25–29

0

 

≥30

1 – Female

0 – Male