Australian Bureau of Statistics

Rate the ABS website
ABS Home > Statistics > By Release Date
ABS @ Facebook ABS @ Twitter ABS RSS ABS Email notification service
3303.0 - Causes of Death, Australia, 2010 Quality Declaration 
Previous ISSUE Released at 11:30 AM (CANBERRA TIME) 20/03/2012   
   Page tools: Print Print Page Print all pages in this productPrint All RSS Feed RSS Bookmark and Share Search this Product

TECHNICAL NOTE 2 CAUSES OF DEATH REVISIONS 2008 AND 2009


OVERVIEW

1 There have been two process improvements implemented by the ABS in recent years which have improved the quality of data, with the biggest improvements seen in the external cause chapter and for coroner certified deaths. These processes were both implemented for the 2008 reference year. The first was a revisions process outlined in Explanatory Notes 35-39 and the second was in relation to the use of additional information from the medical certificate cause of death and from information stored within reports on the NCIS, see Explanatory Notes 63-73 for further information. The following technical note outlines the impact of these two processes.

2 Previous publications of the Causes of Death, Australia indicated that all coroner certified deaths registered after 1 January 2007 are now subject to a revisions process. In order to improve the quality of historical data, the 2006 reference year data has also been revised as part of the Causes of Death, Australia, 2010 release. Therefore in the current release 2006, 2007 and 2008 data is final, 2009 data is revised and 2010 data is preliminary. 2009 and 2010 data is subject to further revisions.


PRELIMINARY CODING

3 This section provides preliminary data for the 2007-2010 reference years. Figure 1 provides information on the number of deaths allocated codes which have no specifity of cause (R99), mechanism (X59, X84 and Y09) or intent (Y10-Y34). Over the period from 2007 to 2010 there has been:

  • a reduction in the number of deaths coded to R99 (other ill-defined and unspecified causes of mortality) from a high of 0.8% (1160) of all deaths in 2007 to 0.5% (779) in 2008 and 0.4% (605 and 504) in 2009 and 2010 respectively;
  • a reduction in the number of deaths coded to unspecified mechanism codes (X59-Accident, X84-Intentional self-harm, Y09-Assault) from 0.2% (262) of all deaths in 2008 to 0.1% of all deaths in 2009 (117) and 2010 (93);
  • a reduction in the number of deaths with an undetermined intent from 0.8% in 2007 (1088) to 0.5% (680) in 2010.
Selected Causes of Death, Preliminary Data - Australia - 2007-2010(a)
Graph: Selected Causes of Death, Preliminary Data—Australia—2007-2010(a)



IMPACT OF REVISIONS

4 Data for 2007 and 2008 has now been finalised through the Causes of Death revisions process. This section provides information on the impact of the revisions process. Table 1 shows the impact of revisions for the 2008 reference year at the ICD-10 chapter level. Notable changes occurred in the following chapters:
  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) - reduction of 390 deaths
  • Diseases of the circulatory system (I00-I99) - increase of 217 deaths
  • External causes of morbidity and mortality (V01-Y98) - increase of 96 deaths

Table 1 - CAUSES OF DEATH REVISIONS , (PRELIMINARY, REVISED, FINAL) - by ICD-10 chapter - 2008

2008
Change (prelim to final)
P
R
F
Cause of death and ICD-10 code
no
no
no
no
%

Certain infectious and parasitic diseases (A00-B99)
1 935
1 966
1 969
34
1.8
Neoplasms (C00-D48)
42 418
42 421
42 423
5
0.0
Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism D50-D89
503
503
504
1
0.2
Endocrine, nutritional and metabolic diseases (E00-E90)
5 900
5 899
5 887
-13
-0.2
Mental and behavioural disorders (F00-F99)
6 406
6 408
6 377
-29
-0.5
Diseases of the nervous system (G00-G99)
5 961
5 971
5 983
22
0.4
Diseases of the circulatory system (I00-I99)
48 456
48 455
48 673
217
0.4
Diseases of the respiratory system (J00-J99)
11 260
11 270
11 275
15
0.1
Diseases of the digestive system (K00-K93)
4 939
4 946
4 970
31
0.6
Diseases of the skin and subcutaneous tissue (L00-L99)
401
401
399
-2
-0.5
Diseases of the musculoskeletal system and connective tissue (MOO-M99)
1 179
1 178
1 171
-8
-0.7
Diseases of the genitourinary system (N00-N99)
3 319
3 326
3 333
14
0.4
Certain conditions originating in the perinatal period (P00-P96)
595
597
596
1
0.2
Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
609
606
614
5
0.8
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
1 243
1 157
853
-390
-31.4
External causes of morbidity and mortality (V01-Y98)
8 804
8 824
8 900
96
1.1
Total(a)
143 946
143 946
143 946
0
0.0

(a) Includes deaths coded to H00-H59, H60-H95, and O00-O99.


5 Table 2 shows a comparison of change, from preliminary to final, for 2007 and 2008. There was a 46.6% decrease in the number of deaths attributed to Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) for the 2007 reference year, while there was only a 31.4% decrease for the 2008 reference year. This is consistent with previous findings that show more specific codes have been allocated in preliminary coding.

Table 2 - CAUSES OF DEATH REVISIONS, by selected ICD-10 chapter - changes from preliminary to final data: by percentage - 2007 and 2008

2007
2008
Cause of death and ICD-10 code
%
%

Certain infectious and parasitic diseases (A00-B99)
-0.1
1.8
Neoplasms (C00-D48)
0.1
0.0
Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism D50-D89
0.8
0.2
Endocrine, nutritional and metabolic diseases (E00-E90)
0.5
-0.2
Mental and behavioural disorders (F00-F99)
-0.4
-0.5
Diseases of the nervous system (G00-G99)
0.3
0.4
Diseases of the circulatory system (I00-I99)
0.7
0.4
Diseases of the respiratory system (J00-J99)
0.4
0.1
Diseases of the digestive system (K00-K93)
0.9
0.6
Diseases of the skin and subcutaneous tissue (L00-L99)
0.6
-0.5
Diseases of the musculoskeletal system and connective tissue (MOO-M99)
1.3
-0.7
Diseases of the genitourinary system (N00-N99)
0.2
0.4
Certain conditions originating in the perinatal period (P00-P96)
1.6
0.2
Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
3.7
0.8
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
-46.4
-31.4
External causes of morbidity and mortality (V01-Y98)
4.3
1.1



6 Table 3 shows the impact of revisions on 2008 data at the sub-chapter level with the following notable reductions
  • Other ill-defined and unspecified causes of mortality (406 deaths)
  • Event of undetermined intent (671 deaths)
  • Accidental exposure to other and unspecified factors (108 deaths).

7 and the following notable increases
  • Accidental poisoning by and exposure to noxious substances (254 deaths)
  • Intentional self-harm (150 deaths)
  • Falls (113 deaths)
  • Car occupant injured in transport accident (87 deaths)
  • Assault (48 deaths)

TABLE 3: CAUSES OF DEATH REVISIONS (PRELIMINARY, REVISED, FINAL), by ICD-10 selected causes - 2008

2008
Change (preliminary to final)
Preliminary
Revised
Final
Cause of death and ICD-10 code
no.
no.
no.
no
%

Sudden infant death syndrome (R95)
59
67
77
18
30.5
Other ill-defined and unspecified causes of mortality (R99)
874
778
468
-406
-46.5
Pedestrian injured in transport accident (V01-V09)
183
206
228
45
24.6
Pedal cyclist injured in transport accident (V10-V19)
24
26
28
4
16.7
Motorcycle rider injured in transport accident (V20-V29)
226
251
270
44
19.5
Car occupant injured in transport accident (V40-V49)
742
795
829
87
11.7
Occupant of pick-up truck or van injured in transport accident (V50-V59)
34
51
69
35
102.9
Occupant of heavy transport vehicle injured in transport accident (V60-V69)
41
47
52
11
26.8
Other land transport accidents (V80-V89)
54
62
56
2
3.7
Water transport accidents (V90-V94)
32
33
37
5
15.6
Air and space transport accidents (V95-V97)
44
42
48
4
9.1
Falls (W00-W19)
1 348
1 412
1 461
113
8.4
Exposure to inanimate mechanical forces (W20-W49)
85
95
100
15
17.6
Accidental drowning and submersion (W65-W74)
159
169
184
25
15.7
Other accidental threats to breathing (W75-W84)
208
219
224
16
7.7
Exposure to smoke, fire and flames (X00-X09)
72
78
84
12
16.7
Exposure to forces of nature (X30-X39)
58
58
60
2
3.4
Accidental poisoning by and exposure to noxious substances (X40-X49)
622
784
876
254
40.8
Accidental exposure to other and unspecified factors (X58-X59)
878
815
770
-108
-12.3
Intentional self-harm (X60-X84)(a)
2 190
2 281
2 340
150
6.8
Assault (X85-Y09)
203
215
251
48
23.6
Event of undetermined intent (Y10-Y34)
1 162
749
491
-671
-57.7
Drugs, medicaments and biological substances causing adverse effects in therapeutic use (Y40-Y59)
48
49
51
3
6.3
Surgical and other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure (Y83-Y84)
187
181
181
-6
-3.2
Sequelae of external causes of morbidity and mortality (Y85-Y89)
156
153
153
-3
-1.9

(a) Care needs to be taken in interpreting figures relating to suicide. See Explanatory Notes 98-101.


8 Table 4 shows the percentage change for the 2007 and 2008 data at the sub-chapter level, with the following notable differences:
  • Deaths due to intentional self-harm increased by 18.5% (347 deaths) between preliminary and final coding for the 2007 reference year, but only increased by 6.8% (150 deaths) in the 2008 reference year.
  • Deaths due to event of undetermined intent decreased by 66.7% (726 deaths) and 57.7% (671 deaths) for the 2007 and 2008 reference years.

Table 4 - Cause of Death Revisions, by ICD-10 selected causes - Percentage change between preliminary and final data - 2007 and 2008

Cause of death and ICD-10 code
2007
2008

Sudden infant death syndrome (R95)
15.5
30.5
Other ill-defined and unspecified causes of mortality (R99)
-68.1
-46.5
Pedestrian injured in transport accident (V01-V09)
26.9
24.6
Pedal cyclist injured in transport accident (V10-V19)
32.4
16.7
Motorcycle rider injured in transport accident (V20-V29)
25.0
19.5
Car occupant injured in transport accident (V40-V49)
20.8
11.7
Occupant of pick-up truck or van injured in transport accident (V50-V59)
39.6
102.9
Occupant of heavy transport vehicle injured in transport accident (V60-V69)
56.3
26.8
Other land transport accidents (V80-V89)
84.5
3.7
Water transport accidents (V90-V94)
16.1
15.6
Air and space transport accidents (V95-V97)
47.2
9.1
Falls (W00-W19)
12.4
8.4
Exposure to inanimate mechanical forces (W20-W49)
30.5
17.6
Accidental drowning and submersion (W65-W74)
4.4
15.7
Other accidental threats to breathing (W75-W84)
4.1
7.7
Exposure to smoke, fire and flames (X00-X09)
24.1
16.7
Exposure to forces of nature (X30-X39)
5.8
3.4
Accidental poisoning by and exposure to noxious substances (X40-X49)
32.7
40.8
Accidental exposure to other and unspecified factors (X58-X59)
-18.2
-12.3
Intentional self-harm (X60-X84)(a)
18.5
6.8
Assault (X85-Y09)
33.3
23.6
Event of undetermined intent (Y10-Y34)
-66.7
-57.7
Drugs, medicaments and biological substances causing adverse effects in therapeutic use (Y40-Y59)
1.7
6.3
Surgical and other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure (Y83-Y84)
-2.1
-3.2
Sequelae of external causes of morbidity and mortality (Y85-Y89)
2.1
-1.9

(a) Care needs to be taken in interpreting figures relating to suicide. See Explanatory Notes 98-101.



Bookmark and Share. Opens in a new window

Commonwealth of Australia 2014

Unless otherwise noted, content on this website is licensed under a Creative Commons Attribution 2.5 Australia Licence together with any terms, conditions and exclusions as set out in the website Copyright notice. For permission to do anything beyond the scope of this licence and copyright terms contact us.