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Table 5 The cut-off points of FLI at waist circumference and BMI stratifications in NHANES 2017–2018

From: Population-specific cut-off points of fatty liver index: a study based on the National Health and Nutrition Examination Survey data

Gender

Cut-off points

BMI < 18.5

18.5 ≤ BMI < 25.0

25.0 ≤ BMI < 30.0

BMI ≥ 30.0

Whole

45.60

5.1

20.77

44.73

86.00

Male

48.57

a

23.26

62.09

91.35

 WC < 102

35.60

b

23.26

45.60

68.03

 WC ≥ 102

85.04

a

a

63.30

91.35

Female

41.93

4.68

14.33

36.67

81.83

 WC < 88

14.29

4.68

11.58

23.48

a

 WC ≥ 88

75.28

a

30.65

36.67

81.83

  1. aThe optimal cut-off point of FLI could not be obtained due to insufficient data
  2. bThe calculated AUROC < 0.5, which cannot meet the requirements of diagnostic test