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Table 1 Demographic and clinical profile of IHD and MI events originating from rural hospitals in WA

From: Transfers to metropolitan hospitals and coronary angiography for rural Aboriginal and non‐Aboriginal patients with acute ischaemic heart disease in Western Australia

 

All IHD (n = 5,377 events)

MI only (n = 1,823 events)

 

Aboriginal

Non-Aboriginal

 

Aboriginal

Non-Aboriginal

 
 

n = 1,059 events (794 patients)

n = 4,318 events (3,587 patients)

p value

n = 365 events (342 patients)

n = 1,458 events (1,386 patients)

p value

Age groups

  

<0.001

  

<0.001

  25-34 years

53 (5.0)

31 (0.7)

 

25 (6.8)

10 (0.7)

 

  35-44 years

222 (21.0)

312 (7.2)

 

83 (22.7)

111 (7.6)

 

  45-54 years

353 (33.3)

760 (17.6)

 

116 (31.8)

295 (20.2)

 

  55-64 years

247 (23.3)

1,073 (24.8)

 

87 (23.8)

359 (24.6)

 

  65-74 years

117 (11.0)

1,051 (24.3)

 

36 (9.9)

333 (22.8)

 

  75-84 years

67 (6.3)

1,091 (25.3)

 

18 (4.9)

350 (24.0)

 

Sex: female (%)

465 (43.9)

1,419 (32.9)

<0.001

120 (34.2)

368 (25.2)

0.001

Residential area (%)

  

<0.001

  

<0.001

  Regional

424 (40.0)

3,431 (79.5)

 

125 (34.2)

1,128 (77.4)

 

  Remote

635 (60.0)

887 (20.5)

 

240 (65.8)

330 (22.6)

 

SES (%)

  

<0.001

  

<0.001

  1st quartile(a)

576 (54.4)

1,218 (28.2)

 

209 (57.3)

401 (27.5)

 

  2nd quartile

209 (19.7)

1,205 (27.9)

 

63 (17.3)

425 (29.1)

 

  3rd quartile

166 (15.7)

1,388 (32.1)

 

50 (13.7)

465 (31.9)

 

  4th quartile(b)

108 (10.2)

507 (11.7)

 

43 (11.8)

167 (11.5)

 

Risk factors (%)

      

  Alcohol

311 (29.4)

234 (5.4)

<0.001

96 (26.3)

59 (4.0)

<0.001

  Smoking

756 (71.4)

2,388 (55.3)

<0.001

263 (72.1)

779.(53.4)

<0.001

Comorbidities (%)

      

  Chronic pulmonary disease

204 (19.3)

483 (11.2)

<0.001

56 (15.3)

128 (8.8)

<0.001

  Diabetes

608 (57.4)

1,113 (25.8)

<0.001

205 (56.2)

340 (23.3)

<0.001

  HF

238 (22.5)

666 (15.4)

<0.001

79 (21.6)

230 (15.8)

0.008

  Kidney disease

175 (16.5)

316 (7.3)

<0.001

67 (18.4)

110 (7.5)

<0.001

First ever IHD/MI event in 2005–09 (%)

591 (55.8)

3,035 (70.3)

<0.001

263 (72.1)

1,241 (85.1)

<0.001

Private insurance (%)

52 (4.9)

1,181 (27.4)

<0.001

21 (5.8)

470 (32.2)

<0.001

IHD category (%)

  

0.497

   

  MI

365 (33.8)

1,458 (33.8)

    

  Unstable angina

340 (32.1)

1,468 (34.0)

    

  Other IHD

354 (33.4)

1,392 (32.2)

    

MI type (%)(c)

      

  Transmural

   

167 (45.8)

641 (44.0)

0.078

  Subendocardial

   

144 (39.5)

527 (36.1)

 

  Other

   

54 (14.8)

290 (19.9)

 
  1. Statistical significance determined using t-test and chi-squared test for continuous and categorical variables respectively.
  2. HF = heart failure; IHD = ischaemic heart disease; MI = myocardial infarction; SES = socio-economic status.
  3. (a)most disadvantaged; (b)least disadvantaged; (c)MI type was based on ICD-10-AM coding terminology.