Table 1

Baseline characteristics

VariableGastric bypass subjectsControl subjectsP
n1616
Age (years)*44.4 (10.0)43.5 (11.7)0.82
Female sex13 (82)13 (82)NA
BMI (kg/m2)*38.0 (7.9)40.5 (6.9)0.36
Weight (kg)*104.0 (29.0)114.6 (26.1)0.30
Preoperative BMI (kg/m2)*51.5 (10.3)
Preoperative weight (kg)*141.1 (35.9)
Time elapsed after bypass (months)*17 (13.5)
Creatinine (µmol/L)*62.9 (9.8)65.2 (11.8)0.56
Creatinine clearance (mL/min)*91.3 (25.7)95.7 (25.4)0.63
A1C (%)*5.5 (0.3)5.6 (0.6)0.28
Fasting glucose (mmol/L)*4.4 (0.4)5.1 (0.6)0.0006
AST (units/L)*22.6 (5.4)25.3 (6.6)0.22
Total cholesterol (mmol/L)*3.96 (0.69)4.78 (1.08)0.02
Triglycerides (mmol/L)*1.0 (0.33)1.5 (0.88)0.29§
HDL cholesterol (mmol/L)*1.1 (0.25)1.1 (0.38)0.74
LDL cholesterol (mmol/L)*2.4 (0.53)3.0 (1.02)0.03
Hypertension8 (50)7 (43.8)1.0
Type 2 diabetes1 (6.3)0 (0)1.0
Dyslipidemia1 (6.3)4 (0.25)0.33
Hypothyroidism3 (0.38)2 (0.13)1.0
Sleep apnea7 (43.8)4 (0.25)0.46
Gastrointestinal reflux1 (6.3)4 (0.25)0.33
  • *Data are mean (SD).

  • †Data are n (%).

  • ‡Subjects were sex-matched.

  • §Mann-Whitney U statistic.

  • ‖Diabetes in remission after RYGB.