Australian Trachoma Surveillance Report 2016

Figure 2.6 b Active trachoma prevalence among children aged 5-9 years in all at-risk communities* by region, Northern Territory 2007-2016

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Figure 2.6 b Active trachoma prevalence among children aged 5-9 years in all at-risk communities* by region, Northern Territory 2007-2016

active trachoma prevalence among children aged 5-9 years in all at-risk communities* by region, northern territory 2007-2016 figure 2.6b is a line graph illustrating the trachoma prevalence in children aged 5 to 9 years in communities that were screened in the years 2007 to 2016 in alice springs remote, barkly, darwin rural, east arnhem and katherine. most regions recorded a spike in 2008, followed by a decline to 2013 with sharp increases in the alice springs remote and barkly regions in 2014 followed by a decrease in 2015 and a slight increase in 2016. alice springs remote data indicates 22% in 2007, an increase to 33% for 2008 to 2010, dropping to 9% in 2012, then sharply increasing to 16% in 2014, decreasing again to 12.7% in 2015, before slightly increasing to 15.9% in 2016. barkly data indicates 30% in 2007, spikes to 61% in 2008 before dropping incrementally to a low of 4.2% in 2013, and rising again to 24.3% in 2014 before dropping down to 9.3% in 2016. darwin rural data indicates 7% in 2007, spikes to 21% in 2008, 2% in 2009, 4% in 2010 and 2011 and under 2% in 2012 to 2016. east arnhem data indicates 6% in 2007, and then fluctuates between 1% to 4% for the years 2008 to 2014, decreasing to 0.8% in 2015, the finally increasing to 1.2% in 2016. katherine data indicates 20% in 2007 followed by a spike to 43% in 2008, down to 15% in 2009, 18% in 2010 and about 5% for 2011 and 2012, rising to 8% in 2013, to 2.6% in 2015, to 7.4% in 2016.

* Most recent estimates carried forward in communities that did not screen in 2016

Figure 2.6 c Overall prevalence of active trachoma* among children aged 5-9 years by region, Northern Territory 2007-2016.

overall prevalence of active trachoma* among children aged 5-9 years by region, northern territory 2007-2016 figure 2.6c is a line graph illustrating the prevalence of active trachoma in children aged 5 to 9 years in the years 2007 to 2016 in alice springs remote, barkly, darwin rural, east arnhem and katherine. most regions record a spike between 2008 to 2009 followed by a sharp decrease to 2011. many regions remain stable to 2016, with some regions experiencing an increase in prevalence. alice springs remote data indicates an increase from 22% in 2007 to 35.9% in 2009 followed by a reduction to 16% in 2011. it remains relatively stable around 14% in 2016. barkly data has an increase from 30% in 2007 to a maximum of 41% in 2009 followed by a steep reduction to 4.1% in 2013. there is a sharp increase to 13% in 2014 then slow decline to 9.4% in 2016. darwin rural is 7.1% in 2007 then has a spike to 20.3% in 2008. there is a decrease to 2.7% in 2009, an increase to 4.4% in 2010, then a gradual decrease to 1.2% in 2016. east arnhem decreases gradually from 6% in 2007 to 1% in 2010, where is remained stable around 1.1% to 2016, with a slight spike to 2.9% in 2011. katherine data indicates a spike from 19.5% in 2007 to 27.3% in 2008, then reduces to 14.3% in 2009 and increases to 16.4% in 2010. there is a slow decline to 3% in 2015 followed by an increase to 7.1% in 2016.

* Calculated carrying forward most recent data in all communities considered at risk of trachoma at some time since 2007

Figure 2.7 Number of at-risk communities* according to level of trachoma prevalence in children aged 5-9 years by region, Northern Territory 2016

number of at-risk communities* according to level of trachoma prevalence in children aged 5-9 years by region, northern territory 2016 figure 2.7 is a stacked bar graph indicating prevalence in the number of screened at-risk communities by region in alice springs remote, barkly, darwin rural, east arnhem and katherine in 2016. alice springs remote data indicates of the 27 communities: 7 have a prevalence of 0%; 0 have a prevalence of greater than 0% but less than 5%; 3 have a prevalence of greater than or equal to 5% but less than 10%; 8 have a prevalence of greater than or equal to 10% but less than 20%; and 9 have a prevalence of greater than or equal to 20%. barkly data indicates of the 11 communities: 3 have a prevalence of 0%; 1 has a prevalence of greater than 0% but less than 5%; 1 has a prevalence of greater than or equal to 5% but less than 10%; 3 have a prevalence of greater than or equal to 10% but less than 20%; and 3 have a prevalence of greater than or equal to 20%. darwin rural data indicates of the 11 communities: 7 have a prevalence of 0%; 3 have a prevalence of greater than 0% but less than 5%; 1 has a prevalence of greater than or equal to 5% but less than 10%; 0 have a prevalence of greater than or equal to 10% but less than 20%; and 0 have a prevalence of greater than or equal to 20%. east arnhem data indicates of the 9 communities: 7 have a prevalence of 0%; 1 has a prevalence of greater than 0% but less than 5%; 1 has a prevalence of greater than or equal to 5% but less than 10%; 0 have a prevalence of greater than or equal to 10% but less than 20%; and 0 have a prevalence of greater than or equal to 20%. katherine data indicates of the 19 communities: 6 have a prevalence of 0%; 5 have a prevalence of greater than 0% but less than 5%; 3 have a prevalence of greater than or equal to 5% but less than 10%; 3 have a prevalence of greater than or equal to 10% but less than 20%; and 2 have a prevalence of greater than or equal to 20%.

* Including at-risk communities that did and did not screen in 2016

Figure 2.8 Number of doses of azithromycin administered for the treatment of trachoma by region, Northern Territory 2007-2016

number of doses of azithromycin administered for the treatment of trachoma by region, northern territory 2007-2016 figure 2.8 is a line graph indicating the number of doses of azithromycin administered for the treatment of trachoma in alice springs remote, barkly, darwin rural, east arnhem and katherine regions between 2007 and 2016. the alice springs remote data indicates 78 doses in 2007 increasing sharply to 1871 in 2008, 1938 in 2009, 2901 in 2010, 3179 in 2011, 2863 in 2012, increasing sharply again to 4206 in 2013 and 5589 in 2014, with a decrease to 4693 in 2015 and finally 6273 in 2016. it has the highest doses than any other region in the northern territories. the barkly data indicates 51 in 2007, 424 in 2008, 479 in 2009, 130 in 2010, 205 in 2011, 124 in 2012, 220 in 2013, 631 in 2014 increasing to 1220 in 2015, then dropping suddenly to 0 in 2016. darwin rural data have no value for 2007. there are 622 doses administered in 2008, a dip to 53 in 2009, then climbs incrementally 765 in 2010, 1659 in 2011, 3402 in 2012, and 3553 in 2013 then decreases steeply to 64 in 2014, a slight increase to 92 in 2015 then decreases to 20 in 2016. east arnhem data have no value for 2007. there are 110 doses in 2008, 54 in 2009, 1 in 2010, 223 in 2011, 147 in 2012 followed by a decreasing trend to 0 in 2015. there is an increase to 93 doses in 2016. katherine data indicates 188 in 2007, 913 in 2008, 746 in 2009, 547 in 2010, 649 in 2011, 867 in 2012, 1172 in 2013, 1452 in 2014, decreasing to 669 in 2015. there is a sudden increase to 2280 doses in 2016.

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