Weight reduction independent changes from baseline after GBP and VBG/B at the 2 year follow up (multiple linear regression analyses).

a: Unadjusted difference between year 2 and baseline within each group. Minus signs denote reductions. Means (±SD) bDifference between year 2 and baseline within each group after adjustment for change in body mass index (BMI), sex, age, baseline BMI and the baseline level of the respective variables. Minus signs denote reductions. Mean values.
b: Difference between year 2 and baseline after adjustment for change in body mass index (BMI), sex, age, baseline BMI and the baseline level of the respective variables. Minus signs denote reductions. Mean values.
c: Difference between gastric bypass surgery (GBP) and pure restrictive bariatric surgery (VBG/B) after adjustment for BMI change, sex, age, baseline BMI and the baseline level of the respective variables. Minus signs denote larger reductions in GBP compared to VBG/B group. Figures between brackets denote 95% confidence interval.
#Daily salt intake was calculated by multiplying urinary sodium values by 0.0585 (molecular weight of NaCl: 58.5).
*P<0.05,
**P<0.01 and ***P<0.001 for test of difference between the GBP group and the VBG/B group in adjusted changes, using multiple linear regression.