HIV Infection in South Australia
HIV Infection 1985 - 31/12/02
In
South Australia, 841 individuals have been diagnosed with HIV infection,
758 (90%) males
and 83 (10%) females.
Of the males, 579 (76%) reported male-to-male sexual contact, 57
(8%) reported injecting drug use and 33 (4%) reported both risk factors.
Heterosexual transmission was reported by 51 (62%) females diagnosed with
HIV infection, 26 (31%) females reported injecting drug use
(Table
1.1).
HIV Infection 01/10/02 - 31/12/02
Six
individuals (four male, two female) were diagnosed with HIV infection
during the fourth
quarter (Table 1.2).
Three men reported male-to-male sexual contact as their risk factor.
Newly acquired infections
Of
the four males diagnosed during the fourth quarter one had acquired his
infection in the preceding 12 months and he reported male-to-male sexual
contact as his risk factor
(Table 1.3).
Newly acquired cases are infections acquired in the last 12 months,
and are identified by negative serology in the preceding 12 months or
diagnosed seroconversion
illness in the preceding 12 months.
Laboratory Screening For HIV Infection 01/10/02
- 31/12/02
During
the fourth quarter of 2002, 18766 screening tests were performed, 8107
(43%) on
males, 10577 (53%) on females and 81 tests on individuals whose
sex was unknown
(Table 1.5).
Table 1.1
HIV infection
detected in South Australia, 1985 - 31/12/02.
Exposure category by sex.
|
|
Male
|
Female
|
Total
|
|
Exposure
category
|
No.
|
%
|
No.
|
%
|
No.
|
%
|
|
Homosexual
contact
|
579
|
76
|
na
|
|
579
|
69
|
|
Homosexual
contact/IDU
|
33
|
4
|
na
|
|
33
|
4
|
|
Heterosexual
contact
|
49
|
6
|
51
|
62
|
100
|
12
|
|
IDU
|
57
|
8
|
26
|
31
|
83
|
10
|
|
Blood
products
|
7
|
1
|
2
|
2
|
9
|
1
|
|
Other
|
4
|
1
|
3
|
4
|
7
|
1
|
|
Unknown
|
29
|
4
|
1
|
1
|
30
|
3
|
|
Total
|
758
|
|
83
|
|
841
|
|
Table 1.2
HIV infection detected in South Australia, 01/10/02 - 31/12/02
and year.
Exposure category by sex.
|
|
4th Quarter
01/10/02 - 31/12/02
|
Year
01/01/02 - 31/12/02
|
|
Exposure category
|
Male
|
Female
|
Male
|
Female
|
|
Homosexual
|
3
|
na
|
19
|
na
|
|
Homosexual/IDU
|
-
|
na
|
3
|
na
|
|
Heterosexual/IDU
|
-
|
-
|
-
|
1
|
|
Heterosexual
contact
|
-
|
2
|
2
|
7
|
|
Not stated
|
1
|
-
|
1
|
-
|
|
Total
|
4
|
2
|
25
|
8
|
na
not applicable
Table
1.4 HIV
infection in males in South Australia, 01/10/02 - 31/12/02
and
year.
Case category by age at diagnosis.
|
|
4th
Quarter
|
Year
|
|
|
01/10/02
- 31/12/02
|
01/01/02
- 31/12/02
|
|
|
Age group
(years)
|
Age group
(years)
|
|
Case
category
|
<25
|
25
- 39
|
³40
|
<25
|
25
- 39
|
³40
|
|
Newly
acquired1
|
-
|
-
|
1
|
2
|
2
|
2
|
|
Greater
than 12 months2
|
-
|
1
|
-
|
-
|
6
|
3
|
|
Uncertain
duration3
|
-
|
-
|
2
|
-
|
-
|
8
|
|
Known
positive overseas
|
-
|
-
|
-
|
-
|
1
|
1
|
|
Total
|
|
1
|
3
|
2
|
9
|
14
|
1
Incident case - negative serology in the preceding 12 months or diagnosed
seroconversion illness in the
preceding
12 months.
2
Infection likely to be greater than 12 months - risk behaviour confined to
more than 12 months ago or
diagnosed
seroconversion illness more than 12 months ago.
3
Uncertain duration - tested for the first time this year and no
seroconversion illness or AIDS defining illness
present.
Table 1.3
Newly acquired infections (Incident cases*) of HIV, 01/10/02 -
31/12/02 and year.
Exposure category by sex.
|
|
4th
Quarter
|
Year
|
|
|
01/10/02 - 31/12/02
|
01/01/02
- 31/12/02
|
|
Exposure
category
|
Male
|
Female
|
Male
|
Female
|
|
Homosexual
|
1
|
na
|
4
|
na
|
|
Homosexual/IDU
|
-
|
na
|
2
|
na
|
|
Total
|
1
|
|
6
|
|
Table 1.5 Summary
of HIV antibody tests, 01/10/02 - 31/12/02 and year.
Laboratory by sex.
|
|
4th
Quarter
01/10/02
- 31/12/02
|
Year
01/01/02
- 31/12/02
|
|
Laboratory
|
Male
|
Female
|
Unknown
|
Male
|
Female
|
Unknown
|
Total
|
|
Public
|
5011
|
6127
|
69
|
19792
|
24212
|
280
|
44284
|
|
Private
|
3096
|
4450
|
12
|
12954
|
18099
|
23
|
31076
|
|
Total
|
8107
|
10577
|
81
|
32746
|
42311
|
303
|
75360
|
|
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