Cohort baseline characteristics including 798 patients who are morbidly obese before bariatric surgery
| All patients (n=798) | |
|---|---|
| Demographic | |
| Age at surgery (year) | 42.7 (41.9 to 43.6) |
| Age at onset of obesity (year) | 18 (15 to 21) |
| Duration of obesity (year) | 22 (21 to 23) |
| Female gender | 620 (78%) |
| Caucasian | 522 (73.5%) |
| Clinical | |
| Hypertension | 369 (48%) |
| Type 2 diabetes mellitus | 266 (39%) |
| Dyslipidemia | 388 (50%) |
| Obstructive sleep apnoea | 257 (32%) |
| Anthropometric | |
| BMI (kg/m2) | 47.5 (47.0 to 48.1) |
| Weight (kg) | 131.8 (130.1 to 133.5) |
| Waist circumference (cm) | 166.2 (165.6 to 166.9) |
| Body fat mass (%) | 48.8 (48.4 to 49.1) |
| Trunk/limb fat mass | 1.2 (1.18 to 1.23) |
| Liver function tests | |
| ALT (IU/L) | 35.8 (33.6 to 37.9) |
| AST (IU/L) | 29.2 (28.2 to 30.3) |
| GGT (IU/L) | 50.2 (43.9 to 56.4) |
| Laboratory parameters | |
| Fasting glucose (mmol/L) | 6.2 (6.0 to 6.4) |
| Haemoglobin A1C (%) | 6.4 (6.3 to 6.5) |
| Fasting insulin (µU/mL) | 22.8 (20.3 to 25.3) |
| Total cholesterol (mmol/L) | 4.8 (4.8 to 4.9) |
| HDL cholesterol (mmol/L) | 1.2 (1.1 to 1.2) |
| Triglycerides (mmol/L) | 1.6 (1.5 to 1.7) |
ALT, alanine aminotransferase; AST, aspartate aminotransferase; BMI, body mass index; GGT, γ-glutamyl transpeptidase; HDL, high-density lipoprotein; IU, international unit; Y, year.
Data are given as Mean (95% CI) or n (%).