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Table 1 Characteristics of separations by Aboriginal status (n = 122,145)

From: Unplanned readmission or death after discharge for Aboriginal and non-Aboriginal people with chronic disease in NSW Australia: a retrospective cohort study

   Aboriginal (n = 77,427) n (%) Non-Aboriginal (n = 44,718) n (%) p-value
Sex % Female 42,982 (55.5) 22,422 (50.1) > 0.001
Age Mean (SD) 53.5 (16.5) 66.7 (17.9) > 0.001
Marital status Married/de facto 30,992 (40.1) 23,815 (53.3) > 0.001
Single 25,178 (32.5) 5673 (12.7)  
Widowed 9385 (12.1) 9884 (22.1)  
Divorced/separated 10,434 (13.5) 4720 (10.6)  
Not known 1372 (1.8) 592 (1.3)  
Chronic diseases present at admission Diabetes 32,865 (39.5) 11,853 (26.5) > 0.001
Chronic respiratory disease 15,403 (19.9) 6135 (13.7) < 0.0001
Cardiovascular disease 41,977 (54.2) 29,231 (65.4) < 0.0001
Renal disease 20,133 (26.0) 12,638 (28.3) < 0.0001
Charlson Co-morbidity Index score 0 43,888 (56.7) 25,454 (56.9) < 0.0001
1 18,835 (24.3) 9979 (22.3)  
2+ 14,704 (19.0) 9285 (20.8)  
IRSD 1st quintile - most disadvantaged 19,505 (25.2) 5823 (13.0) < 0.0001
2nd quintile 22,584 (29.2) 10,529 (23.6)  
3rd quintile 16,701 (21.6) 8788 (19.7)  
4th quintile 14,286 (18.5) 9985 (22.3)  
5th quintile - least disadvantaged 4351 (5.6) 9593 (21.4)  
ARIA Highly Accessible (major cities) 29,855 (38.6) 31,521 (70.5) < 0.0001
Accessible (inner regional) 29,132 (37.6) 10,348 (23.1)  
Moderately Accessible (outer regional) 13,692 (17.7) 2560 (5.7)  
Remote / Very Remote 4748 (6.1) 289 (0.7)  
Year of separation 2005–06 7547 (10.3) 4680 (11.2) < 0.0001
2006–07 7840 (10.7) 4719 (11.3)  
2007–08 7980 (10.9) 4693 (11.2)  
2008–09 6905 (9.5) 4143 (9.9)  
2009–10 7041 (9.6) 4169 (10.0)  
2010–11 7010 (9.6) 4061 (9.7)  
2011–12 7807 (10.7) 4343 (10.4)  
2012–13 10,243 (14.0) 5391 (12.9)  
2013–14 10,643 (14.6) 5644 (13.5)  
Length of stay (days) Mean (SD) 5.6 (14.2) 6.9 (17.2) < 0.0001