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Table 1 Schedule of study assessments

From: Different limb lengths in gastric bypass surgery: study protocol for a Swiss multicenter randomized controlled trial (SLIM)

Study periods Screening Intervention Follow-up
Visit 1 2 3 4 5 6 7 8 9 10 11
Time (day, month, year) − 3 months 0–5 days 3 months 6 months 9 months 1 year 1.5 years 2 years 3 years 4 years 5 years
Patient information and informed consent x           
Demographics x           
Medical history x           
Inclusion/exclusion criteria x x          
Physical examination x x x x x x x x x x x
Vital signs x x x x x x x x x x x
Laboratory tests x x x x x x x x x x x
Randomization   x          
Operation   x          
Complications   x x x x x x x x x x
Primary variables x x x x x x x x x x x
Secondary variables x x x x x x x x x x x
Questionnaires x    x   x   x x x x
Adverse events   x x x x x x x x x x