Table 1

Demographic and clinical characteristics of SPAA and CCB+statin primary prevention patients

SPAA

CCB+Statin

Characteristic

(N = 1,537)

(N = 17,910)

p-value


Age: (Years)

Mean

53.5

54.8

<.001

SD

7.6

8.5

Median

55

55

Age group: (n,%)

<.001

<50 years

412

26.8%

4,119

23.0%

50-59 years

816

53.1%

9,636

53.8%

60+ years

309

20.1%

4,155

23.2%

Gender: (n,%)

Male

900

58.6%

9,327

52.1%

<.001

Geographic Region: (n,%)

<.001

Northeast

525

34.2%

4,705

26.3%

Midwest

389

25.3%

7,314

40.8%

South

595

38.7%

5,296

29.6%

West

28

1.8%

595

3.3%

Plan Type: (n,%)

<.001

Health Maintenance Organization (HMO)

311

20.2%

6,429

35.9%

Indemnity Plan

92

6.0%

885

4.9%

Point of Service (POS)

217

14.1%

2,313

12.9%

Preferred Provider Organization (PPO)

884

57.5%

7,805

43.6%

Unknown

33

2.1%

478

2.7%

Payer Type: (n,%)

<.001

Commercial Plan

1,462

95.1%

16,121

90.0%

Medicaid

1

0.1%

158

0.9%

Medicare Risk

26

1.7%

1,086

6.1%

Self-Insured

38

2.5%

464

2.6%

Other/Unknown

10

0.7%

81

0.5%

Charlson Comorbidity Burden:

Mean

0.4

0.5

<.001

SD

0.7

0.8

Comorbid Conditions of Interest: (n,%)

Diabetes Mellitus

363

23.6%

5,242

29.3%

<.001

Dyslipidemia

1,188

77.3%

12,217

68.2%

<.001

Obesity

76

4.9%

1,063

5.9%

0.112

Peripheral Vascular Disease

35

2.3%

476

2.7%

0.371

Chronic Obstructive Pulmonary Disease

39

2.5%

638

3.6%

0.035

Number of Pre-Index Unique Prescriptions:

<.001

1-2

252

16.4%

1,847

10.3%

3-4

392

25.5%

3,646

20.4%

5-6

310

20.2%

3,682

20.6%

7+

583

37.9%

8,735

48.8%

Number of Pre-Index Other Antihypertensive Classes:

<.001

0

675

43.9%

6,771

37.8%

1

718

46.7%

9,237

51.6%

2

127

8.3%

1,693

9.5%

3+

17

1.1%

209

1.2%


Chapman et al. BMC Cardiovascular Disorders 2010 10:29   doi:10.1186/1471-2261-10-29

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