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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