Australia Trachoma Surveillance Report 2011

National results 2011

Page last updated: 09 April 2013

Figure 1.1 Trachoma prevalence in children aged 5-9 years and number of communities screened/ number of at-risk communities in 2011

Map of Australia, with shading legend distinguishing the number of at-risk communities identified over the number of communities screened and trachoma prevalence in 2011

Including communities screened but not at risk


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Figure 1.2 Number of communities screened* by year and jurisdiction

line graph demonstrating the number of communities screened by year (2007-2011) and jurisdiction (NT, SA and WA)

Including communities screened but not at risk


Figure 1.3 Population screening coverage* of children aged 5-9 years by year and jurisdiction

line graph demonstrates the population screening coverage of children aged 5-9 years (%) by year (2007-2011) and jurisdiction (NT, SA and WA)

* Calculated as the number of children screened (in at-risk and not-at-risk communities) in region containing at least one at-risk community divided by the estimated population size of region

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Figure 1.4 Proportion of screened children* aged 5-9 years who had a clean face by year and jurisdiction

shows the proportion of screened children aged 5-9 years with clean face by year (2007-2011) and jurisdiction (NT, SA and WA).  The trend for all jurisdictions remained stable around 80% until 2011 when SA increased to 88% and the NT and WA decreased.

* Including children in communities screened but not at risk


Figure 1.5 Proportion of communities screened* meeting clean face target in children aged 5-9 years by year and jurisdiction

line graph demonstrates the proportion of communities screened meeting the clean face target in children aged 5-9 by year (2007-2011) and jurisdiction (NT, SA and WA).

* Including children in communities screened but not at risk

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Figure 1.6 Trachoma prevalence among screened* children aged 1-4 years by year and jurisdiction

Trachoma prevalence among screened* children aged 1-4 years by year and jurisdiction

* Including children in communities screened but not at risk


Figure 1.7 Trachoma prevalence among screened* children aged 5-9 years by year and jurisdiction

line graph demonstrates trachoma prevalence in screened children aged 5-9 years by year (2007-2011) and jurisdiction (NT, SA and WA)

* Including children in communities screened but not at risk

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Figure 1.8 Trachoma prevalence among screened* children aged 10-14 years by year and jurisdiction

line graph demonstrates trachoma prevalence in screened children aged 10-14 years by year (2007-2011) and jurisdiction (NT, SA and WA)

* Including children in communities screened but not at risk


Figure 1.9 Proportion of screened* communities in which no trachoma was reported among children aged 5-9 years by year and jurisdiction

line graph demonstrates the proportion of communities screened where no trachoma was reported among children aged 5-9 years by year (2007-2011) and jurisdiction (NT, SA and WA).

* Including communities screened but not at risk

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Figure 1.10 Proportion of screened communities* with endemic trachoma† among children aged 5-9 years by year and jurisdiction

line graph demonstrates the proportion of communities screened with endemic (≥ 5%) trachoma prevalence in children aged 5-9 years by year (2007-2011) and jurisdiction (NT, SA and WA)

* Including communities screened but not at risk
† Prevalence greater than 5%


Figure 1.11 Trachoma prevalence (and 95% CI) in communities with at least 10 children consistently screened each year between 2007 and 2011, among children aged 5-9 years by year and jurisdiction

line graph demonstrates trachoma prevalence in communities consistently screened each year (2007-2011) by year and jurisdiction (NT and WA)
Figure 1.12 Screening coverage of children in at-risk communities in 2011 by age group and jurisdiction
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histogram demonstrates screening coverage of children in at-risk communities in 2011 by age group (1-4years, 5-9 years, and 10-14 years) and jurisdiction (NT, SA and WA)

* Number of children screened


Figure 1.13 Trachoma prevalence in children screened in at-risk communities in 2011 by age group and jurisdiction*

histogram demonstrates trachoma prevalence in children screened in at-risk communities in 2011 by age group (1-4 years, 5-9 years and 10-14 years) and jurisdiction (NT and WA)

* In communities where more than 5 children were screened
† Number of children detected with trachoma

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Figure 1.14 Clean face prevalence among children screened in at-risk communities in 2011 by age group and jurisdiction*

histogram demonstrates the prevalence of Clean Face is children screened in at-risk communities in 2011 (%) by age (1-4 years, 5-9 years and 10-14 years) and jurisdiction (NT and WA)

* In communities where more than 5 children were screened
† Number of children observed to have a clean face


Figure 1.15 Proportion of screened at-risk communities according to level of trachoma prevalence in 5-9 year old children in 2011, by jurisdiction

graph demonstrates trachoma prevalence among screened at-risk communities in 2011 by jurisdiction (NT, SA and WA)

* Number of communities screened for trachoma

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Figure 1.16 Estimated proportion of population treated of those requiring treatment in at-risk communities, by jurisdiction

graph illustrates estimated proportion of population requiring treatment in at-risk communities according to treatment coverage (treated or not treated) (NT, SA and WA)

* Number of people estimated to require treatment for trachoma


Table 1.1 Trachoma screening coverage, trachoma prevalence and clean face prevalence among at-risk communities in 2011 by jurisdiction

* Calculated as the proportions of children with active trachoma in age groups 1-4 and 5-9 years, weighted by the estimated population sizes of each age group. This was done in order to account for uneven coverage with respect to age groups

Northern Territory South Australia Western Australia Total
Number of communities at risk* 86 46 75 207
Number of communities screened 65 19 68 152
Age group (years)  1-4 5-9 10-14 1-14 1-4 5-9 10-14 1-14 1-4 5-9 10-14 1-14 1-4 5-9 10-14 1-14
Estimated number of Aboriginal children at risk* 3637 3909 3653 11199 938 931 935 2804 2265 2498 2095 6858 6840 7338 6683 20861
Children examined for clean face 498 2550 1790 4838 150 683 405 1238 207 1498 946 2651 855 4731 3141 8727
Children with clean face 281 1875 1550 3706 148 599 386 1133 123 1117 820 2060 552 3591 2756 6899
Clean face prevalence 56% 74% 87% 77% 99% 88% 95% 92% 59% 75% 87% 78% 65% 76% 88% 79%
Children examined for trachoma 439 2530 1785 4754 151 718 468 1337 203 1498 946 2647 793 4746 3199 8738
Trachoma screening coverage 12% 65% 49% 42% 16% 77% 50% 48% 9% 60% 45% 39% 12% 65% 48% 15%
Children with active trachoma 19 175 91 285 2 29 5 36 3 123 38 164 24 327 134 485
Active trachoma prevalence 4% 7% 5% 6% 1% 4% 1% 3% 1% 8% 4% 6% 3% 7% 4% 6%
Trachoma prevalence 1-9 years 7% 4% 7% 6%
Trachoma prevalence 1-9 years
(weighted by population)*
6% 3% 5% 5%
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    Table 1.2 Trachoma treatment coverage among at-risk communities in 2011 by jurisdiction

    * Estimated using average number of household contacts per child in communities who reported number of contacts requiring treatment and population statistics (see Methodology for detail)

    Northern Territory
    South Australia
    Western Australia
    Total
    Number of communities at risk
    86
    46
    75
    207
    Number of communities requiring treatment
    43
    8
    29
    80
    Age group (years)
    1-4
    5-9
    10-14
    15+
    All
    1-4
    5-9
    10-14
    15+
    All
    1-4
    5-9
    10-14
    15+
    All
    1-4
    5-9
    10-14
    15+
    All
    Active cases requiring treatment
    19
    175
    91
    285
    2
    29
    5
    36
    3
    123
    38
    164
    24
    327
    134
    0
    485
    Active cases who received treatment
    19
    150
    66
    235
    2
    27
    5
    34
    3
    121
    35
    159
    24
    298
    106
    0
    428
    % Active cases received treatment
    82%
    94%
    97%
    88%
    Estimated contacts requiring treatment (according to jurisdictional interpretation of guidelines)
    8772
    466
    1304
    9509
    Number of contacts who received treatment
    626
    841
    512
    2636
    4615
    36
    51
    52
    316
    455
    118
    254
    177
    556
    1105
    780
    1146
    741
    3508
    6175
    Estimated overall treatment coverage (total) *
    53%
    98%
    85%
    65%
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    Table 1.3 Number of at-risk communities according to trachoma prevalence ranges among children aged 5-9 years in 2011
    Prevalence
    Northern Territory
    South Australia
    Western Australia
    Total
    0%
    22
    34%
    11
    58%
    39
    57%
    72
    47%
    >0 but <5%
    14
    22%
    1
    5%
    4
    6%
    19
    12%
    ≥5 but <10%
    11
    17%
    2
    11%
    7
    10%
    20
    13%
    ≥10 but <20%
    9
    14%
    3
    16%
    8
    12%
    20
    13%
    ≥20%
    9
    14%
    2
    11%
    10
    15%
    21
    14%
    Total
    65
    100%
    19
    100%
    68
    100%
    152
    100%
    Table 1.4 Trichiasis screening coverage, prevalence and treatment among Aboriginal adults aged over 40 years in 2011
    Northern

    Territory

    South Australia
    Western

    Australia

    Total
    Adult population size of at-risk* communities
    7007
    1921
    4538
    13466
    Number of communities at risk*
    86
    46
    75
    207
    Number of communities screened for trichiasis
    8
    9%
    7
    15%
    5
    7%
    20
    10%
    Number (%) of adults examined
    212
    3%
    712
    37%
    255
    6%
    1179
    9%
    Number (%) of adults with trichiasis
    9
    4%
    1%
    2
    1%
    19
    2%
    Number of adults offered ophthalmic consultation
    1
    2
    3
    6
    Number of adults receiving trichiasis surgery in past 12 months
    0
    0
    0
    0
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