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Table 3 Decomposed differences in life expectancy by health risks, Indigenous vs Non-Indigenous, Northern Territory, Australia, 1986–2005

From: Decomposing Indigenous life expectancy gap by risk factors: a life table analysis

 

LE(a) at birth

Contribution and CI(c)

Health risk

1986-1990

1991-1995

1996-2000

2001-2005

1986-1990

1991-1995

1996-2000

2001-2005

Male

     

%

  

Smoking

3.25

3.41

3.75

4.01

21

24

23

21

Alcohol

1.08

0.83

0.80

1.02

7

6

5

5

Disadvantage

7.01

6.34

7.31

7.79

45

45

44

42

Obesity

1.35

1.46

1.86

1.77

9

10

11

9

Pollution

0.22

0.22

0.23

0.23

1

2

1

1

Assault

−0.02

−0.01

0.01

0.05

0

0

0

0

All-combined(b)

9.8

9.3

10.5

11.4

63

66

63

61

Unexplained

5.8

4.8

6.1

7.3

37

34

37

39

LE (a) at birth

   

95% CI (c)

 

Indigenous

56.2

58.6

59.4

59.5

55.4-57.0

57.7-59.4

58.7-60.2

58.8-60.3

Non- Indigenous

71.8

72.7

76.1

78.3

71.2-72.3

72.2-73.1

75.6-76.6

77.8-78.7

Actual difference

15.6

14.1

16.6

18.8

14.8-16.3

13.4-14.8

16.0-17.3

18.1-19.4

Female

     

%

  

Smoking

3.59

3.28

3.21

2.51

17

19

17

14

Alcohol

0.19

0.26

0.39

0.50

1

2

2

3

Disadvantage

11.17

9.31

9.11

8.97

53

54

48

51

Obesity

2.76

2.95

2.36

2.57

13

17

12

15

Pollution

0.33

0.32

0.27

0.20

2

2

1

1

Assault

0.63

0.52

0.37

0.56

3

3

2

3

All-combined(b)

14.1

12.2

12.1

11.9

66

70

64

68

Unexplained

7.1

5.2

6.9

5.6

34

30

36

32

LE (a) at birth

   

95% CI (c)

 

Indigenous

63.2

64.4

65.0

67.9

62.4-64.0

63.6-65.3

64.2-65.7

67.1-68.7

Non- Indigenous

84.4

81.8

84.0

85.4

83.6-85.3

81.1-82.5

83.4-84.6

84.8-85.9

Actual difference

21.2

17.4

19.0

17.5

20.0-22.5

16.4-18.4

18.2-19.9

16.7-18.2

  1. Notes: (a) LE=life expectancy, (b) All-combined model reflects the explanatory power of all risks combined and is not equivalent to the sum of the individual risks. Apportioning the combined overall risk back to each contributing risk factor would be highly sensitive to assumptions and is therefore not presented in this analysis, (c) CI=confidence interval. Data source: Northern Territory Department of Health, Australia.
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Population Health Metrics

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