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Table 2 Comparison between the successful (> 50% EBW loss) vs non-successful surgeries (n = 130)

From: Are there really any predictive factors for a successful weight loss after bariatric surgery?

 

Non-successful

n = 26

Successful

n = 104

p

Age (years)

> 50 years of age at the time of surgery

52 ± 8

16 (61.5%)

46 ± 9

40 (38.5%)

0.005

0.04

Female

21 (81%)

85 (80%)

0.55 Fisher

Highschool or higher level of education.

12 (46%)

55 (53%)

0.53

Without a full time job

13 (54%)

33 (33%)

0.05

Married or living with a partner

20 (77%)

67 (64%)

0.22

Medical history

 Altered glucose metabolism

18 (69%)

57 (55%)

0.18

 Hypertension

20 (77%)

54(52%)

0.02

 Dyslipidemia

10 (38.5%)

28 (27%)

0.24

 Hypothyroidism

9 (35%)

27 (26%)

0.37

 Cardiovascular event

1 (4%)

5 (5%)

0.65

 Venous thrombosis

0 (0%)

3 (3%)

0.50

 Sleep Apnea

7 (27%)

28 (27%)

1.0

 Osteoarthrosis

8 (31%)

19 (18%)

0.16

 Previous abdominal surgery

18 (69%)

48 (46%)

0.03

 Depression or anxiety

7 (27%)

11 (11%)

0.03

Total comorbidities

3 (3–4)

2 (1–3)

0.02

Before Surgery

 Maximum weight ever (kg)

131.5 (121–146.5)

130 (117–140)

0.39

 Weight at initial evaluation (kg)

124.5 (113.5–135)

119.5(108–133)

0.319

 BMI at first evaluation (kg/m2)

49 (46–53)

48 (43–53)

0.22

 %EBW loss before surgery

7 (1.5–13)

3 (0–12)

0.29

Type of surgery:

 RYGB

13 (50%)

36 (35%)

0.001

 OAGB

5 (19%)

59 (57%)

 

 Gastric sleeve

8 (31%)

9 (9%)

 

EXERCISE AND DIET AFTER SURGERY

 At least 150 min of physical activity per week (%)

7 (27%)

32 (31%)

0.70

 Average daily calorie intake during the 1st year (kcal)

846 (567.5–930)

723 (602–955)

0.94

 Protein content of the diet (g)

50.5 (35–52)

47 (32–62)

0.82

 Lipid content of the diet (g)

30 (16–39)

23 (17.5–33)

0.58

 Carbohydrate content of the diet (g)

92.5 (58–109)

92 (73–128)

0.25

 %EBW loss 12 months after surgery

43 (38–47)

66 (60–76)

< 0.001

  1. BMI body mass index, EBW excess body weight, RYGB Y-Roux Gastric Bypass, OAGB One anastomosis gastric bypass