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Table 1 Inflammatory rheumatic disease (IRD) and non-IRD patients by statin initiation

From: Statin initiation and treatment non-adherence following a first acute myocardial infarction in patients with inflammatory rheumatic disease versus the general population

Variable

IRD patients (n =415)

Non-IRD patients (n =18,103)

Statins initiated

Statins not initiated

Statins initiated

Statins not initiated

 

n

%

n

%

n

%

n

%

Number of patients

207

100

208

100

11,893

100

6,210

100

Age, years

        

<50

9

4.4

12

5.8

1,445

12.2

613

9.9

50 to 59

32

15.5

18

8.7

2,368

19.9

804

12.9

60 to 69

38

18.4

21

10.1

2,748

23.1

947

15.3

70 to 79

77

37.2

60

28.9

3,085

25.9

1,367

22.0

80+

51

24.6

97

46.6

2,247

18.9

2,479

39.9

Female

112

54.1

149

71.6

3,853

32.4

2,784

44.8

Indigenous

1

0.5

7

3.4

338

2.8

376

6.1

Married/de-facto

117

56.5

93

44.7

7,888

66.3

3,188

51.3

High accessibility to services1

164

79.2

164

78.8

8,500

71.5

4,390

70.7

Accessibility/Remoteness Index of Australia (ARIA) - remote2

6

2.9

10

4.8

478

4.0

410

6.6

Lowest quartile of Socio-Economic Indexes for Areas Index of Relative Socio-Economic Disadvantage (SEIFA-IRSD)

11

5.3

16

7.7

805

6.8

547

8.8

Length of stay, median (IQR)

8

(5 to 16)

17

(7 to 42)

5

(4 to 10)

9

(5 to 24)

Statin use within 1 month prior to index MI

60

29.0

6

2.9

3,090

26.0

369

5.9

Comorbidities at index admission 3

        

Cancer

12

5.7

8

3.9

340

2.9

550

8.9

Cerebral vascular accident

6

2.9

14

6.7

376

3.2

435

7.0

Dementia

3

1.4

11

5.3

108

0.9

183

2.9

Diabetes

35

16.9

45

21.7

1,803

15.2

1,194

19.2

Liver disease

0

0.0

3

1.5

18

0.2

63

1.0

Paraplegia

3

1.4

7

3.4

153

1.3

227

3.7

Peptic ulcer

3

1.4

10

4.8

110

0.9

110

1.8

Pulmonary disease

19

9.2

38

18.3

586

4.9

651

10.5

Peripheral vascular disease

3

1.4

6

2.9

274

2.3

202

3.3

Renal Disease

29

14.0

32

15.4

882

7.4

788

12.7

Cardiovascular risk factors

        

Smoker

40

19.3

30

14.4

3,071

25.8

1,244

20.0

Hypertension

109

52.7

97

46.6

6,299

53.0

2,825

45.5

Hypercholesterolaemia

57

27.5

15

7.2

3,873

32.6

1,165

18.8

Arrhythmia

58

28.0

71

34.1

2,584

21.7

1,849

29.8

Obesity

16

7.7

7

3.4

865

7.3

313

5.0

Procedure, during admission

        

PTCA

45

21.7

20

9.6

3,358

28.2

679

10.9

CABG

4

1.9

4

1.9

570

4.8

159

2.6

Count of medications at 1 months post MI, median (IQR)

7

(4 to 10)

3

(0 to 7)

4

(2 to 7)

0

(0 to 4)

  1. Results are presented as number (n) and percent (%) unless stated otherwise. 1Based on ARIA code =1, major cities, highly accessible. 2Based on ARIA code = 4 (remote) and ARIA code = 5 (very remote). 3Based on Charlson comorbidity components and other risk factors. MI, myocardial infarction; CABG, coronary artery bypass graft; PTCA, percutaneous transluminal coronary angioplasty.
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Arthritis Research & Therapy

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