|
Demographic group
|
Landline frame
|
Mobile frame
|
Landline plus mobile only
|
Both frames combined #
|
2011 Census
|
|---|
|
Total (%)
|
p-value
|
Total (%)
|
p-value
|
%
|
p-value
|
%
|
p-value
|
|---|
|
Age groups
|
0-15
|
14.1
|
<0.001
|
11.4
|
0.03
|
13.4
|
<0.001
|
12.1
|
0.01
|
20.5
|
|
16-24
|
4.1
|
12.4
|
5.8
|
7.3
|
11.6
|
|
25-34
|
5.6
|
23.1
|
10.2
|
13.2
|
13.6
|
|
35-44
|
7.6
|
15.0
|
8.2
|
9.9
|
14.1
|
|
45-54
|
13.0
|
16.9
|
12.7
|
13.4
|
13.8
|
|
55-64
|
21.6
|
12.9
|
19.8
|
17.4
|
11.7
|
|
65-74
|
18.4
|
6.5
|
16.4
|
14.1
|
7.8
|
|
75-high
|
15.6
|
1.7
|
13.5
|
12.5
|
6.9
|
|
Sex
|
Male
|
38.9
|
0.04
|
48.4
|
0.85
|
40.1
|
0.07
|
42.8
|
0.20
|
49.3
|
|
Female
|
61.1
|
51.6
|
59.9
|
57.2
|
50.7
|
|
Aboriginality
|
Aboriginal
|
2.2
|
0.86
|
2.6
|
0.94
|
2.6
|
0.96
|
2.6
|
0.96
|
2.5
|
|
Non-Aboriginal
|
97.8
|
97.4
|
97.4
|
97.4
|
97.5
|
|
Country of birth
|
Australia
|
79.4
|
0.02
|
64.9
|
0.42
|
77.1
|
0.07
|
73.4
|
0.30
|
68.6
|
|
Overseas
|
20.6
|
35.1
|
22.9
|
26.6
|
31.4
|
|
Marital status
|
Married
|
54.1
|
<0.001
|
54.0
|
0.76
|
51.3
|
0.01
|
51.5
|
0.08
|
49.4
|
|
Widowed
|
13.7
|
3.1
|
12.2
|
11.1
|
5.8
|
|
Separated
|
4.0
|
3.3
|
3.9
|
3.7
|
3.1
|
|
Divorced
|
12.3
|
7.1
|
11.7
|
10.2
|
8.3
|
|
Never married
|
15.9
|
32.5
|
20.9
|
23.5
|
33.4
|
|
Income*
|
< $20,000
|
24.0
|
0.02
|
12.0
|
0.04
|
23.4
|
0.02
|
21.9
|
0.05
|
13.7
|
|
$20,001-$40,000
|
19.8
|
15.4
|
19.2
|
18.5
|
19.8
|
|
$40,001-$60,000
|
15.1
|
14.9
|
15.3
|
14.7
|
16.9
|
|
$60,001-$80,000
|
10.4
|
14.0
|
10.8
|
11.2
|
19.8
|
|
$80,000 plus
|
30.8
|
43.7
|
31.3
|
33.7
|
29.8
|
-
Notes: # Calculation numbers for combined frame = ((Sa+λSab
A)+ (Sb+(1-λ)Sab
B) where S =sample; λ=overlap adjustment (set to 0.5); A landline sample frame; B denotes mobile sample frame; a landline-only phone users; b mobile-only phone users; ab denotes both mobile phone and landline users.
- * Census income information was converted from weekly income to annual income for the comparison.
- χ2 testing, setting the significance level of p<0.05, was used for the comparisons between the sample demographic categories and the population profile (2011 census).
