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Injuries and poisoning are a significant source of preventable illness, disability and mortality in Australia, and place a heavy burden on health services. Injuries (e.g. fractured bones, lacerations) and poisoning (e.g. drug overdose) result from events such as car crashes, falls, suicide or attempted suicide, and interpersonal violence. Such events, and factors involved in them, are known collectively as 'External causes' of injury and poisoning.

"Injury, poisoning and certain other consequences of external causes" was recorded as the principal diagnosis for more than 413,735 episodes of inpatient care in Australian hospitals during 1999-2000 (table 9.13).

Falls are the most common external cause of injuries resulting in admission to a hospital. This is reflected in the draft National Injury Prevention Plan: Priorities for 2001 - 2003, which nominated falls among persons aged 65 years and older and falls among children under 15 years of age as two of four areas for priority action. The other areas are drowning and near drowning; and poisoning of infants and children less than 5 years of age. Although the number of deaths from these four types of injuries is relatively small, they account for a large number of hospital admissions.

Suicide and transport accidents presently account for more than half of all injury deaths in Australia. Suicide numbers and rates have risen in recent decades, especially for young and middle-aged men, bringing this topic substantial public and government attention since the mid-1990s. In contrast, the annual number of road deaths has dropped to about half the number in 1970, despite large increases in population and the amount of travel on roads. This decrease is attributable to the range of agencies and programs at Commonwealth and State/Territory level which have had long-standing responsibility for road safety issues, and other aspects of transport safety.

9.13 EXTERNAL CAUSES OF MORTALITY(a) AND HOSPITAL SEPARATIONS(b), Australia
	Transport accidents	Suicide (Intentional self-harm)	Other external causes	All external causes
Mortality(a)
-Number	2,011	2,492	3,858	8,361
-Rate(c)	10.6	13.2	20.4	44.2
Hospital separations(b)
-Number	51,460	20,927	341,348	413,735
-Rate(c)	270.1	109.8	1,791.7	2,171.7
(a) Deaths, for which the underlying cause was external cause, registered in the calendar year 1999. (b) Separations from hospital during the year beginning 1 July 1999 for which the principal diagnosis was "Injury, poisoning and certain other consequences of external causes". (c) Crude rate per 100,000 population. Source: AIHW National Injury Surveillance Unit.