Table 1 Baseline characteristics in the 2 groups.

From: 24-hour urine chemistry shows higher stone formation risk after malabsorptive than restrictive type bariatric surgery

 

Restrictive (n = 55)

Malabsorptive (n = 35)

P value

Age, year

43.1 ± 11.3

46.5 ± 9.1

0.137

Male sex

23 (41.8%)

21 (60.0%)

0.093

Body weight, kg

108.0 ± 18.8

103.3 ± 22.1

0.289

Waist circumference, cm

119.3 ± 12.8

117.1 ± 13.1

0.443

Fat percentage, %

37.9 ± 8.0

33.1 ± 6.8

0.005 *

Serum creatinine, µmol/L

67.4 ± 15.1

77.4 ± 24.7

0.039 *

Serum urea, mmol/L

4.9 ± 1.3

5.7 ± 1.8

0.010 *

Serum albumin, g/L

41.3 ± 3.5

39.8 ± 4.3

0.088

Hypertension

41 (74.5%)

30 (85.7%)

0.206

Hyperlipidemia

32 (58.2%)

28 (80.0%)

0.032 *

Diabetes mellitus

24 (43.6%)

29 (82.9%)

0.001 *

  1. Continuous variables: presented as mean ± standard deviation.
  2. Catergorical variables: presented as number (percentage).
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