Table 2 Blood glucose result data by prior hyperglycaemia category.

From: Dysglycaemia and the interaction of chronic and acute glycaemia with mortality post cardiac surgery

Characteristic

HBA1C Level

p-values

Control1

Diabetes1

HbA1c <6.5%1

HbA1c 6.5–7.9%1

HbA1c ≥ 8.0%1

Median Number of Blood Tests

30

(22, 47)

29

(23, 46)

28

(22, 43)

33

(24, 55)

38

(25, 61)

<0.0014

<0.0015

0.0026

Median Number of Blood Tests/24hrs

23 (19, 30)

24 (21, 27)

23 (19, 28)

25 (22, 31)

26

(22, 31)

<0.0014

<0.0015

0.0536

Mean BG Level

6.83 (6.49, 7.20)

7.51 (7.00, 8.14)

6.83 (6.50, 7.21)

7.42 (6.92, 8.02)

7.79 (7.14, 8.46)

<0.0014

<0.0015

<0.0016

Peak BG Level

9.56 (8.67, 10.83)

11.72 (10.06, 13.81(

9.50 (8.67, 10.72)

11.56 (10.06, 13.50)

13.06 (11.06, 15.39)

<0.0014

<0.0015

<0.0016

Minimum BG Level

4.56 (4.00, 5.11)

4.56 (4.00, 5.11)

4.61 (4.06, 5.11)

4.50 (3.83, 5.00)

4.28 (3.67, 4.94)

<0.0014

<0.0015

0.0036

Coefficient of Variation

19 (15, 24)

24 (20, 30)

19 (15, 23)

25 (20, 30)

28 (23, 34)

<0.0014

<0.0015

<0.0016

Median A1c

5.70 (5.40, 6.00)

6.90 (6.30, 7.80)

5.70 (5.40, 5.90)

7.00 (6.70, 7.40)

8.90 (8.30, 10.00)

<0.0014

<0.0015

<0.0016

Cumulative Dose of Hyperglycaemia

0.05 (0.21)

0.24 (0.41)

0.03 (0.18)

0.21 (0.37)

0.41 (0.50)

<0.0014

<0.0015

<0.0016

Number of Hyperglycaemic Events

     

<0.0014

<0.0015

<0.0016

0

4,040 (61%)

594 (24%)

4,133 (61%)

395 (23%)

106 (13%)

 

1

679(10%)

275 (11%)

708 (11%)

188(11%)

55 (6.8%)

 

2

498 (7.4%)

259 (10%)

542(8.1%)

161 (9.5%)

54 (6.6%)

 

3

1,503 (22%)

1,399 (55%)

1,347

(20%)

949 (56%)

606 (74%)

 

Number of Hypoglycaemic Events

     

<0.0014

<0.0015

0.0446

0

5,210 (78%)

1,956

(77%)

5,390

(80%)

1,224

(72%)

552

(67%)

 

1

436

(6.4%)

209 (8.3%)

437 (6.5%)

130 (7.7%)

78 (9.5%)

 

2

340 (5.1%)

135 (5.3%)

319 (4.7%)

105 (6.2%)

51 (6.2%)

 

3

731

(11%)

227 (9.0%)

584 (8.7%)

234 (14%)

140 (17%)

 
  1. 1Median (IQR); Mean (SD); n (%).
  2. 2Fisher’s exact test; Wilcoxon rank sum test.
  3. 4A1 vs A2 p-values.
  4. 5A1 vs A3 p-values.
  5. 6A2 vs A3 p-values.