Comparison of major variables between patients with or without liver biopsy
| Variable | Liver biopsy (n = 29); mean (SD) or n (%) | No liver biopsy (n = 37); mean (SD) or n (%) | p Value |
| Age (years) | 13.2 (4.1) | 14.6 (3.7) | 0.15 |
| Male gender (male/total) | 19 (65%) | 18 (49%) | 0.17 |
| BMI (kg/m2) | 30.1 (6.5) | 32.1 (8.3) | 0.29 |
| Abdominal pain at presentation | 13 (45%) | 18 (48%) | 0.76 |
| Obesity (BMI>95th percentile) | 18 (55%) | 24 (65%) | 0.96 |
| Dyslipidaemia | 10 (34%) | 14 (38%) | 0.78 |
| Hypertriglyceridaemia | 12 (41%) | 19 (51%) | 0.47 |
| Hypercholesterolaemia | 12 (41%) | 14 (38%) | 0.89 |
| Hypertension | 3 (10%) | 5 (13%) | 0.69 |
| ALT (IU/l) | 166.7 (125.8) | 105.1 (54.9) | 0.03 |
| AST (IU/l) | 103.3 (69.4) | 87.0 (54.6) | 0.29 |
| Glucose (mg/dl) | 92.9 (13.0) | 117.3 (66.8) | 0.09 |
| Cholesterol (mg/dl) | 193.6 (41.6) | 235.4 (92.6) | 0.04 |
| Triglyceride (mg/dl) | 149.9 (61.1) | 272.1 (208.1) | 0.007 |
| Duration of follow-up (years) | 6.2 (4.7) | 6.6 (4.2) | 0.73 |
ALT, alanine aminotransferase; AST, serum aspartate aminotransferase; BMI, body mass index.