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Table 6 The cut-off points of FLI at waist circumference and BMI stratifications in NHANES III

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

59.54

–b

23.63

60.84

84.10

Male

61.47

–b

23.75

60.47

87.90

 WC < 102

47.97

–b

23.75

59.10

79.25

 WC ≥ 102

87.73

–a

54.46

67.07

88.53

Female

51.65

–b

23.65

45.44

82.60

 WC < 88

–b

–b

–b

41.89

27.91

 WC ≥ 88

70.28

–a

35.26

51.64

82.60

  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