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Table 2 Characteristics of Four Race-Gender Groups of Primary Care Hypertensive Patients with High Baseline LDL Cholesterol

From: A Retrospective Cohort Study of the Potency of lipid-lowering therapy and Race-gender Differences in LDL cholesterol control

Characteristic

Black

women

(N = 1,440)

Black

men

(N = 666)

White women

(N = 661)

White

men

(N = 717)

P Value

Baseline LDL cholesterol [mg/dl], mean [SD]

142.8 (29.9)

138.9 (28.0)

144.0 (24.3)

137.2 (23.4)

< 0.001

LDL control by 6 months after baseline, %

16.8

18.9

20.3

28.5

< 0.001

LDL cholesterol tests within 6 months after baseline, N [SD]

0.85 (0.75)

0.90 (0.79)

0.80 (0.77)

0.92 (0.90)

0.026

Sociodemographic

     

Age [years], mean [SD]

68.4 (9.7)

61.4 (11.1)

68.4 (9.9)

62.3 (10.5)

< 0.001

Median income in zipcode of residence, mean $ [SD]

28,360 (10,904)

30,692 (12,825)

57,004

(23,790)

58,680 (23,464)

< 0.001

Insurance type [%]

     

   Commercial

46.4

60.7

57.5

72.5

< 0.001

   Medicaid

17.4

14.9

2.0

2.2

 

   Medicare

35.4

22.8

40.2

24.8

 

   Self pay

0.8

1.7

0.3

0.4

 

LDL Cholesterol

     

Baseline LDL [mg/dl], mean [SD]

142.8 (29.9)

138.9 (28.0)

144.0 (24.3)

137.2 (23.4)

< 0.001

LDL tests within 6 months mean [SD]

0.85 (0.75)

0.90 (0.79)

0.80 (0.77)

0.92 (0.90)

0.026

LDL control by 6 months after baseline, %

16.8

18.9

20.3

28.5

< 0.001

Clinical

     

Vascular disease, %

30.1

28.2

21.2

21.1

< 0.001

Diabetes, %

41.5

46.2

19.5

31.1

< 0.001

Renal insufficiency, %

13.3

21.9

3.3

9.6

< 0.001

Unrelated comorbidities, #

6.3

5.4

5.5

4.9

< 0.001

Tobacco use, %

     

   Current

11.2

14.9

5.0

10.3

< 0.001

   No

55.3

45.2

70.8

54.7

 

   Not recorded

33.5

39.9

24.2

35.0

 

Lipid-lowering Drug Therapy

    

Treated (%)

57.4%

54.7%

52.5%

53.7%

0.134

Potency per day of treatment, mean (SD)

0.96 (0.26)

0.97 (0.25)

0.90 (0.25)

0.91 (0.3)

< 0.001

Duration of treatment, days, mean (SD)

964.5 (550.3)

919.6 (537.6)

887.3 (544.9)

911.7 (548.4)

0.01

Total potency, categorical (treated only)

     

   None, %

42.6

45.4

47.5

46.3

 

   Lower [≤840],%

26.5

28.5

26.5

30.3

0.007

   Higher [> 840],%

31.0

26.1

26.0

23.4

 

Health Care

     

Primary care arrived visits per year, mean (SD)

6.3 (4.2)

6.5 (4.6)

5.8 (3.7)

5.7 (6.1)

0.002

Kept < 60% of scheduled visits, %

19.7

20.7

13.0

10.2

< 0.001

Maximum concurrent anti-hypertensive drugs, mean N (SD)

2.5 (1.3)

2.3 (1.3)

1.9 (1.1)

1.8 (1.2)

< 0.001

Provider (N)

     

Race, %

     

   White (157)

60.7

62.5

90.6

91.2

< 0.001

   Asian (27)

11.7

7.7

3.3

2.5

 

Other Minority (18)

27.6

30.0

6.1

6.3

 

   Gender, %

     

Female (110)

60.3

47.3

53.7

31.3

< 0.001

   Type, %

     

Attending (74)

56.7

61.0

69.6

73.1

< 0.001

Resident (105)

17.0

16.2

7.9

8.4

 

Nurse practitioner/Physician assistant (23)

26.3

22.8

22.5

18.6

 

Annual arrived visits to

1916.8

1980.1

2009.0

2202.7

< 0.001

provider, mean N (SD)

(1464.7)

(1454.6)

(1207.5)

(1404.4)

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