Table 2 The relationship of early glucose measurements with preoperative and postoperative DM status

Preoperative DM

New diagnosis DM after surgery

Never diagnosed DM

Total

p

Postoperative day

Glucose level

Day 0

High

3

4

22

29

0.854

Normal

0

0

1

1

Day 1

High

3

4

21

28

0.722

Normal

0

0

2

2

Day 2

High

2

1

11

14

0.536

Normal

1

3

12

16

Day 3

High

2

2

8

12

0.518

Normal

1

2

15

18

Glucose course

for 4 days

High

2

1

6

9

0.579

Fluctuating

0

1

1

2

Decreasing

1

2

15

18

Increasing

0

0

1

1

Total

3

4

23

30