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Table 1 Checklist of baseline and follow-up visits of patients enrolled in the Base-NAFLD study

From: Bariatric surgery for non-alcoholic fatty liver disease in individuals with obesity (Base-NAFLD): protocol of a prospective multicenter observational follow-up study

  Visit 1
Visit 2
(3-month intervals)
Visit 3
(6-month intervals)
Visit 4
(1-year intervals)
Visit 5
(2-year intervals)
Demographic data
Disease history and medication usage
Surgical information
Weight loss
Routine blood tests
Fasting insulin and fasting C-peptide
Biochemical examination
Thyroid function
Serum iron and TIBC
Ferritin and folate and Vitamin B12
Coagulation function
C13 breath tests
Abdominal ultrasonography
Lower extremity vascular ultrasound
Abdominal MRI
Liver biopsy
Adverse events
  1. Base-NAFLD, Bariatric Surgery for Non-alcoholic Fatty Liver Diseases in Individuals with Obesity; HbA1c, glycosylated haemoglobin; OGTT, oral glucose tolerance test; FBG, fasting blood glucose; TIBC, total iron-binding capacity; AFP, alpha-fetoprotein
  2. : Mandatory; : Optional; ✗: Not required