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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.