Skip to main content

Table 1 Chlamydia test data collected from 15 Australian laboratories obtained over a three-year period displayed by year

From: Analysis of laboratory testing results collected in an enhanced chlamydia surveillance system in Australia, 2008–2010

Sex and age in years Chlamydia tests Positive tests Positivity rates  
2008 2009 2010 2008 2009 2010 2008 2009 2010 P*
(n) (n) (n) (n) (n) (n) (%) (%) (%)  
Female patients <16 2,174 3,172 2,761 279 352 367 12.8 11.1 13.3 0.56
16-19 21,403 25,265 22,190 2,539 2,937 2,826 11.9 11.6 12.7 <0.01
20-24 40,124 48,076 42,943 3,237 3,780 3,562 8.1 7.9 8.3 0.2
25-29 32,570 38,999 34,178 1,468 1,723 1,457 4.5 4.4 4.3 0.14
30-39 16,161 27,834 20,009 382 643 554 2.4 2.3 2.8 0.02
40+ 8,711 16,734 11,765 93 218 127 1.1 1.3 1.1 0.98
all 121,143 160,080 133,846 7,998 9,653 8,893 6.6 6 6.6 0.50
Male patients <16 895 1,145 1,242 77 82 111 8.6 7.2 9 0.64
16-19 6,019 7,307 6,710 856 1,072 1,102 14.2 14.7 16.4 <0.01
20-24 14,789 17,794 16,205 1,979 2,328 2,165 13.4 13.1 13.4 0.99
25-29 13,431 15,597 13,922 1,261 1,404 1,253 9.4 9 9 0.28
30-39 8,070 12,458 9,583 488 775 581 6.1 6.2 6.1 0.91
40+ 8,425 13,747 10,218 287 513 314 3.4 3.7 3.1 0.17
all 51,629 68,048 57,880 4,948 6,174 5,526 9.6 9.1 9.6 0.93
Total   172,772 228,128 191,726 12,946 15,827 14,419 7.5 6.9 7.5 0.56
  1. *The number of tests per year and the percentage positivity by age group and gender are shown with the differences between the percentage positivity estimated using Chi-squared and expressed as p value and the significant values presented in bold type.