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During 2011-12, there were 1,024,462 hospital separations in WA, of which 75,306 (7.4%) were identified as Indigenous . 10 The age-standardised separation rate of 1,563 separations per 1,000 for Indigenous people was 3.8 times higher than the rate for other people in WA. Around 39% of the separations identified as Indigenous involved overnight hospital stays, and 60% were same-day acute separations (the details of a small number of the overall separations were not reported). The age-standardised separation rate for Indigenous people for overnight stays was 2.4 times the rate for non-Indigenous people. Excluding same-day separations for renal dialysis, for which rates were much higher for Indigenous people than for non-Indigenous people, the age-adjusted separation rate for same-day separations was 1.3 times higher for non-Indigenous people than for Indigenous people
In WA in 2008-10, separation rates were higher for Indigenous people than those for non-Indigenous people for all age-groups, except the 65 years and older age-group; the highest disparities occurred in the middle adult years (Table 5) .
|Indigenous||Non-Indigenous||Rate ratio||Indigenous||Non-Indigenous||Rate ratio||Indigenous||Non-Indigenous||Rate ratio|
|Source: AIHW, 2013 |
In 2008-10, the most common cause of hospitalisation among Indigenous people living in WA was for the International Classification of Diseases (ICD) group ‘Care involving dialysis’ (Table 6) . (Many of these separations involved repeat admissions for the same people, some on an almost daily basis.) After age-adjustment, the rate of 764 per 1,000 for Indigenous people was almost 16 times higher than the rate for non-Indigenous people. After excluding dialysis, ICD ‘Injury, poisoning and certain other consequences of external causes’ (including motor vehicle accidents, assaults, self-inflicted harm and falls) was the next most common cause of hospitalisation for Indigenous people, with an Indigenous rate of 65 per 1,000 which was 2.9 times higher than the non-Indigenous rate. The next leading cause of hospitalisation for Indigenous people was for respiratory conditions with an Indigenous rate of 56 per 1,000 which was 4.0 times higher than the non-Indigenous rate.
|Principal diagnosis||Indigenous||Non-Indigenous||Rate ratio|
|Source: Derived from AIHW, 2013 |
|Injury, poisoning and certain other consequences of external causes||65||23||2.9|
|Disease of the respiratory system||56||14||4.0|
|Disease of the digestive system||38||39||1.0|
|Symptoms, signs and abnormal clinical and laboratory findings||37||23||1.6|
|Disease of the circulatory system||36||19||1.9|
|Pregnancy, childbirth and the puerperium||35||21||1.6|
|Mental and behavioural disorders||33||13||2.6|
|Endocrine, nutritional and metabolic diseases||29||8.6||3.4|
|Disease of the genitourinary system||23||16||1.4|
|Disease of the skin and subcutaneous tissue||19||5.7||3.3|
|Certain infectious and parasitic diseases||14||4.8||2.9|
|Care involving dialysis||764||49||15.5|