The percentage of Cervical Screening Tests (CST) reported as technically unsatisfactory was as follows:
Year Quarter % Unsatisfactory
2006 1st 1.9%
2nd 2.0%
3rd 2.3%
4th 2.0%
2007 1st 2.0%
2nd 2.0%
3rd 2.1%
4th 2.0%
2008 1st 2.1%
2nd 1.9%
3rd 1.8%
4th 1.8%
2009 1st 1.9%
2nd 2.1%
3rd 2.4%
4th 2.6%
2010 1st 2.3%
2nd 2.2%
3rd 2.3%
4th 2.1%
2011 1st 2.0%
2nd 2.3%
3rd 2.3%
4th 2.6%
2012 1st 2.4%
2nd 2.4%
3rd 2.5%
4th 2.7%
2013 1st 2.6%
2nd 2.6%
3rd 2.8%
4th^ 2.8%
 2014 1st 2.7%
  2nd 2.5%
  3rd 2.7%
   4th 2.6%
 2015  1st 2.6%
   2nd 2.7%
   3rd 3.0%
   4th 2.9%
2016 1st 2.6%
  2nd 2.6%
  3rd 2.7%
  4th 2.5%
2017 1st 2.7%
  2nd 3.1%
  3rd 3.2%

^ From Quarter 4 2013, the number of unsatisfactory CST includes Pap tests and HPV DNA tests completed as part of the Compass trial.


The above table includes a small proportion of unsatisfactory HPV DNA tests since the commencement of the Compass trial in the fourth quarter of 2013. However prior to this, the proportion of unsatisfactory Pap tests had slightly increased. The Commonwealth Performance Standards require laboratories to report between 0.5% and 5% of Pap tests as technically unsatisfactory.