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Table 3 Body composition according to the non-alcoholic fatty liver disease activity score (NAS)

From: Relationship between body composition and the histology of non‐alcoholic fatty liver disease: a cross‐sectional study

Index

Median (IQR)

P-value

NAS 0–4 (n = 70)

NAS 5–8 (n = 79)

Muscle mass, kg

23.7 (19.9–29.8)

23.2 (20-29.7)

0.98

Muscle mass/ht2, kg/m2

9.6 (8.6–10.5)

9.6 (8.5–10.7)

0.67

ASM, kg

17.8 (14.1–22)

17.6 (14.7–22.2)

0.8

SMI, kg/m2

7.1 (6.1–7.9)

7.1 (6.3–8.2)

0.44

Muscle mass of upper extremity, kg

4.7 (3.9–6.1)

4.7 (3.9–6.2)

0.33

Muscle mass of upper extremity/ht2, kg/m2

1.9 (1.7–2.2)

2 (1.7–2.3)

0.43

Muscle mass of lower extremity, kg

13.3 (10.3–15.8)

13 (10.9–15.9)

0.83

Muscle mass of lower extremity/ht2, kg/m2

5.2 (4.5–5.7)

5.2 (4.6-6)

0.51

Fat mass, kg

22.5 (15.4–29)

26.5 (21.3–33.9)

< 0.01

BFMI, kg/m2

9.1 (6.4–11.6)

10.6 (8.6–13.2)

< 0.01

Visceral fat area, cm2

124.8 (104.7-149.2)

132.8 (117.7-156.8)

0.08

Waist-hip ratio

0.95 (0.91–0.99)

0.96 (0.92-1)

0.21

SMI/BFMI

0.79 (0.58–1.05)

0.66 (0.52–0.85)

< 0.01

  1. Wilcoxon test or unpaired t-test was used. P < 0.05 was considered statistically significant
  2. IQR, interquartile range; ht2, height squared; ASM, appendicular skeletal muscle mass; SMI, skeletal muscle index; BFMI, body fat mass index