Table 2: Association of poor glycemic control and social demographic and clinical characteristics of member with diabetes.

Characteristic

%

P value**

Total

HbA1c next year

≤ 9.0%

> 9.0%

(N = 4,458)

(N = 3,482)

(N = 976)

Quintile of HbA1c variability

 

 

 

< 0.0001

1st

20.82

22.2

15.37

2nd

17.92

18.64

15.88

3rd

21.13

21.97

18.14

4th

20.12

19.56

22.13

5th

20.01

17.63

28.47

Absolute change HbA1c

0.1(-0.2-0.4)

0.1(-0.1-0.39)

0.1(-0.3-0.5)

0.0076

Mean HbA1c

6.80(6.28-7.53)

6.75(6.25-7.40)

7.13(6.43-8.15)

< 0.0001

Age group (years)

 

 

 

0.0784

65-74

30.37

29.7

32.79

75-84

51.68

52.56

48.57

≥ 85

17.95

17.75

18.65

Gender

 

 

 

0.2248

Female

54.37

54.85

52.66

Male

45.63

45.15

47.34

Race

 

 

 

0.6097

White

87.01

86.88

87.5

Non-white

12.99

13.12

12.5

Median household income quartile

 

 

 

0.6396

First (< $48,683)

26.61

26.97

25.31

Second ($48,683-$67,236)

24.73

24.48

25.62

Third ($67,237-$81,714)

24.23

24.36

23.76

Fourth (> $81,714)

24.43

24.19

25.31

Education level quartile

 

 

 

0.6334

 1st (< 17.3% college or higher)

23.3

25.23

25.21

 2nd (17.3%-27.0%)

26

26.28

27.38

 3rd (27.1%-43.5%)

25.5

23.69

21.8

 4th (> 43.5%)

25.2

24.8

25.62

Product type

 

 

 

0.1433

HMO

95.72

95.95

94.88

PPO

4.28

4.05

5.12

Comorbidities

 

 

 

 

Obesity

15.03

14.38

17.33

0.0226

Tobacco use

8.6

8.28

9.74

0.1506

Hypertension

90.39

90.39

90.36

0.9738

Hyperlipidemia

86.12

86.11

86.15

0.9713

Ischemic heart disease

11.3

10.99

12.41

0.2149

Stroke

15.39

15.1

16.41

0.316

Anxiety

6.87

6.76

7.28

0.5681

Depression

8.29

7.71

10.36

0.008

Chronic kidney disease

22.48

21.63

25.54

0.0097

Diabetic complications

 

 

 

 

Diabetic retinopathy

17.45

17.86

16

0.1762

Diabetic neuropathy

18.31

18.44

17.85

0.6741

Diabetic nephropathy

12.83

12.42

14.26

0.1306

Modified Charlson comorbidity index

 

 

 

0.3034

0

26.68

26.86

26.05

1-2

34.19

34.6

32.72

 ≥ 3

39.13

38.54

41.23

Emergency department visit

30.62

29.38

35.04

0.0007

Number of outpatient visit*

1(0-3)

1(0-3)

2(0-4)

0.0086

Any hospitalization

18.89

18.09

21.72

0.0105

Number of PCP/internist visit*

9(5-16)

9(5-16)

9(5-16)

0.6334

Endocrinologist visit

19.96

19.96

19.98

0.9891

Nephrologist visit

10.32

9.85

11.99

0.0524

Podiatrist

33.15

33.72

31.15

0.1319

Cardiologist

52.65

53.04

51.23

0.3156

Number of specialist visit*

4(1-9)

4(2-9)

4(1-8)

0.4988

Ambulance use

44.59

44

46.72

0.1303

Echography

28.8

28.37

30.33

0.2337

EKG

44.24

44.69

42.62

0.2512

Stress test

11.84

11.86

11.78

0.9467

DxCG risk score tertile

 

 

 

0.0908

 1st (0.066-3.312)

33.02

33.2

32.38

 2nd (3.313-7.911)

33

33.6

30.84

 3rd (7.911-178.784)

33.98

33.2

36.78

Number of distinct generic drug*

10(7-14)

10(7-14)

10(7-14)

0.0518

Insulin use

22.75

20.42

31.05

< 0.0001

Statin use

72.97

73.03

72.75

0.8585

Antidiabetic MPR ≥ 80%

70.1

70.22

69.67

0.7419

Number of HbA1c measurements

3(3-4)

3(3-4)

3(3-4)

0.8126


*data presented as median (interquartile range)

**comparisons between values for members next year HbA1c ≤ 9.0% and > 9.0%