Table 2: Standardized differences of categorial variables both before (original sample) and after matching (matched sample).

 

Roux-en-Y-Gastric Bypass

Sleeve Gastrektomy

Standardized Differences

[n]

[%]

[n]

[%]

Matched Sample

Original Sample

Male

324

27.91

320

27.56

0.008

0.229

Comorbidities

1050

90.44

1074

92.51

0.074

0.088

Comorbidity diabetes

333

28.68

332

28.60

0.002

0.009

Comorbidity sleepapnea

302

26.01

303

26.10

0.002

0.126

Comorbidity hypertension

779

67.10

794

68.39

0.028

0.046

ASA I

36

3.10

36

3.10

< 0.001

0.043

ASA II

481

41.43

477

41.09

0.007

0.155

ASA III

620

53.40

630

54.26

0.017

0.151

ASA IV

23

1.98

16

1.38

0.047

0.048