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Table 2 Maximal changes in glucose-related variables

From: Gastric bypass surgery reveals independency of obesity and diabetes melitus type 2

HBA1CIFCC (mmol/mol) Range <48

 

NDM

DMT2-NDM

DMT2-DMT2

 

Pre-surgery

Pre-surgery

Pre-surgery

Post-surgery

Pre-surgery

Post-surgery

Number of subjects

179

 

47

 

8

 

Mean

37

32

63

38

84

53

Range

27–47

24–43

42–113

28–46

54–122

48–70

Comparison of conditions,

p-values*

    
 

Pre-surgery

Post-surgery

    

NDM v DMT2-NDM

<0.001

<0.001

    

NDM v DMT2-DMT2

<0.001

<0.001

    

DMT2-NDM v DMT2-DMT2

0.031

<0.001

    

Glucose (mmol/L) Range 4.2–6.1

 

NDM

DMT2-NDM

DMT2-DMT2

 

Pre-surgery

Post-surgery

Pre-surgery

Post-surgery

Pre-surgery

Post-surgery

Number of subjects

182

 

43

 

7

 

Mean

5.4

4.9

8.8

5.8

9.8

6.4

Range

3.9–8.0

1.3–7.1

3.3–24

4.1–9.1

3.4–19

4.8–8.4

Comparison of conditions,

p-values

    
 

Pre-surgery

Post-surgery

    

NDM v DMT2-NDM

<0.001

<0.001

    

NDM v DMT2-DMT2

0.070

0.032

    

DMT2-NDM v DMT2-DMT2

0.647

0.323

    

Insulin (pmol/L) Range 10–125

 

NDM

DMT2-NDM

DMT2-DMT2

 

Pre-surgery

Post-surgery

Pre-surgery

Post-surgery

Pre-surgery

Post-surgery

Number of subjects

177

 

42

 

7

 

Mean

113

41

150

50

69

32

Range

23–486

1–112

13–494

2–11

4–167

1–53

Comparison of conditions,

p-values

    
 

Pre-surgery

Post-surgery

    

NDM v DMT2-NDM

0.020

0.019

    

NDM v DMT2-DMT2

0.074

0.176

    

DMT2-NDM v DMT2-DMT2

0.007

0.022

    

HOMA-IR

 

NDM

DMT2-NDM

DMT2-DMT2

 

Pre-surgery

Post-surgery

Pre-surgery

Post-surgery

Pre-surgery

Post-surgery

Number of subjects

175

 

42

 

7

 

Mean

28.1

9.5

59.1

13.5

36.8

9.3

Range

4.7–164.0

0.3–28.7

1.9–199.0

0.6–36.7

0.6–107.6

0.3–15.4

Comparison of conditions,

p-values

    
 

Pre-surgery

Post-surgery

    

NDM v DMT2-NDM

<0.001

<0.001

    

NDM v DMT2-DMT2

0.564

0.925

    

DMT2-NDM v DMT2-DMT2

0.190

0.082

    

HOMA-BETA

 

NDM

DMT2-NDM

DMT2-DMT2

 

Pre-surgery

Post-surgery

Pre-surgery

Post-surgery

Pre-surgery

Post-surgery

Number of subjects

174

 

41

 

6

 

Mean

1303

489

869

430

239

261

Range

236–5215

40–2072

113–1101

8–1184

88–369

121–546

Comparison of conditions,

p-values

    
 

Pre-surgery

Post-surgery

    

NDM v DMT2-NDM

0.023

0.204

    

NDM v DMT2-DMT2

<0.001

0.020

    

DMT2-NDM v DMT2-DMT2

0.001

0.063

    
  1. Subjects were only included if both pre- and post-surgery values were available
  2. NDM, glycemic non-diabetics pre- and post-surgery
  3. DMT2-NDM; pre-surgery glycemic diabetics, post-surgery glycemic non-diabetics
  4. *The p-values are given as nominal values. Only p-values <0.001 can be considered significant after Bonferoni correction for multiple testing