Australian National Diabetes Information Audit & Benchmarking (ANDIAB) 2011 Final Report

2.7 Additional Analyses

Data on age by duration of diabetes, broken down by type 1 and type 2 diabetics

Page last updated: December 2011

Tables 18 [a] and [b] provide a breakdown [by Diabetes Type respectively] of Age by Duration of Diabetes (where all three data items were available for analysis).

This shows the majority of individuals who were stated to be Type 1 were in the 20-29 decade age range, [23.7%], with 19.8% [of all Type 1 individuals], in the 30-39 age group.

For Type 2, the predominant age decades of individuals were 60-69 [33.0%], thence 70-79 and 50-59 [24.9% & 21.2% respectively].

Table 18[a] - Age by Duration of Diabetes (Type 1 DM)

Age Group
Count and Percentage
< 18 Mths (Duration of Diabetes)
18Mth-5 Yrs (Duration of Diabetes)
6-10 Yrs (Duration of Diabetes)
11-15 Yrs(Duration of Diabetes)
> 16 Yrs (Duration of Diabetes)
Total (Duration of Diabetes)
< 10
n
133007
< 10
%
14.3%
42.9%
42.9%
0.0%
0.0%
0.7%
10 - 19
n
143743216121
10 - 19
%
11.6%
30.6%
35.5%
17.4%
5.0%
12.0%
20 - 29
n
2536575863239
20 - 29
%
10.5%
15.1%
23.8%
24.3%
26.4%
23.7%
30 - 39
n
1138252488186
30 - 39
%
5.9%
20.4%
13.4%
12.9%
47.3%
18.4%
40 - 49
n
892024110171
40 - 49
%
4.7%
5.3%
11.7%
14.0%
64.3%
16.9%
50 - 59
n
361215113149
50 - 59
%
2.0%
4.0%
8.1%
10.1%
75.8%
14.8%
60 - 69
n
775115282
60 - 69
%
8.5%
8.5%
6.1%
13.4%
63.4%
8.1%
70 - 79
n
14322939
70 - 79
%
2.6%
10.3%
7.7%
5.1%
74.4%
3.9%
80 +
n
10001415
80 +
%
6.7%
0.0%
0.0%
0.0%
93.3%
1.5%
Total
n
711401681554751009
Total
%
7.0%
13.9%
16.7%
15.4%
47.1%
100.0%

Table 18[b] - Age by Duration of Diabetes (Type 2 DM)

Age Group
Count and Percentage
< 18 Mths (Duration of Diabetes)
18 Mths-5 Yrs (Duration of Diabetes)
6-10 Yrs (Duration of Diabetes)
11-15 Yrs (Duration of Diabetes)
> 16 Yrs (Duration of Diabetes)
Total (Duration of Diabetes)
< 10
n
000000
< 10
%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
10 - 19
n
23000 5
10 - 19
%
40.0%
60.0%
0.0%
0.0%
0.0%
0.2%
20 - 29
n
81863035
20 - 29
%
22.9%
51.4%
17.1%
8.6%
0.0%
1.1%
30 - 39
n
24372685100
30 - 39
%
24.0%
37.0%
26.0%
8.0%
5.0%
3.1%
40 - 49
n
4573845038290
40 - 49
%
15.5%
25.2%
29.0%
17.2%
13.1%
9.0%
50 - 59
n
79144176149159707
50 - 59
%
11.2%
20.4%
24.9%
21.1%
22.5%
21.9%
60 - 69
n
861342182373971072
60 - 69
%
8.0%
12.5%
20.3%
22.1%
37.0%
33.3%
70 - 79
n
3949127181384780
70 - 79
%
5.0%
6.3%
16.3%
23.2%
49.2%
24.2%
80 +
n
19173043126235
80 +
%
8.1%
7.2%
12.8%
18.3%
53.6%
7.3%
Total
n
30247566767111093224
Total
%
9.4%
14.7%
20.7%
20.8%
34.4%
100.0%
NB: Duration of diabetes was calculated as: [2011 minus stated ‘Year of Diagnosis’].
The resulting integer would be 0 if diagnosed in 2011, and 1 if diagnosed in 2010 [and in fact a maximum of 18 Mths – 1 Jan ’10 diagnosis to 30 Jun ’11 survey]. Duration 18 Mths-5 Years is thus a minimum 18 Mths {Dec ’09 diagnosis to Jun ’11 survey} to 5 years 06-11].


In regards to duration of Type 1, 7.0% were “newly diagnosed” (duration <=18 Months), with 13.5% 18 Months-5 Years duration, and 15.9% 6-10 Years - the remainder being 15.5% 11-15 Years and 48.1% 16-plus Years. For Type 2 there were 9.1% “newly diagnosed”, the remainder relatively equally spread across the diabetes duration groups, apart from the largest group, 34.0% having a diabetes duration of 16 plus Years.

Document download

This publication is available as a downloadable document.

Australian National Diabetes Information Audit & Benchmarking (ANDIAB) 2011 Final Report(PDF 559 KB)