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Table 2 Measurements at several time points

From: The link between obesity and vitamin D in bariatric patients with omega-loop gastric bypass surgery - a vitamin D supplementation trial to compare the efficacy of postoperative cholecalciferol loading (LOAD): study protocol for a randomized controlled trial

 

Name

Screening

Intervention

Follow-up

 

Duration

12 months

6 months

6 months

Visits

Time

 

Surgery

Days 1–3

Wk 2

Wk 4

Wk 8

Wk 12

Wk 16

Wk 20

Wk 24

Wk 48

Anamnesis

Anamnesis

X

        

X

X

Body weight

X

  

X

X

X

X

X

X

X

X

Anthropometry

X

   

X

X

X

X

X

X

X

Dietary assessment, BDI

X

   

X

 

X

  

X

X

Bone density

DEXA

X

        

X

X

Liver and microbiota

FibroScan and CAPTM

X

   

X

 

X

  

X

X

Stool samples

X

   

X

 

X

  

X

X

Biopsies

Liver, SAT, VAT

 

X

         

Supplementation

Loading dose

  

X

X

X

      

Maintenance dose

    

X

X

X

X

X

X

X

Blood parameter

Vitamin D

X

  

X

X

X

X

X

X

X

X

Biochemical

X

  

X

X

X

X

X

X

X

X

Liver

X

   

X

 

X

  

X

X

Inflammation

X

  

X

X

X

X

X

X

X

X

Insulin resistance

X

  

X

X

X

X

X

X

X

X

Bone turnover

X

   

X

 

X

  

X

X

  1. Abbreviations: BDI Beck Depression Inventory, CAP controlled attenuation parameter; DEXA dual-energy X-ray absorptiometry, SAT subcutaneous adipose tissue, VAT visceral adipose tissue
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Trials

ISSN: 1745-6215