Indicator 8: Diagnostic testing for unscreened women This section reports information on the number of women who completed prenatal diagnostic testing but were not screened in the 105 days prior to the diagnostic test. The indication for diagnostic testing is not reliably reported on laboratory request forms but it is likely that many of these women will have had an increased prior risk (eg, family history, previous child with Down syndrome, late maternal age) or a diagnostic test done for another reason and the karyotype reported or an abnormal ultrasound finding. Diagnostic volumes for unscreened women During the 2015 year, 252 diagnostic tests were completed for unscreened women. This is similar to the number undertaken in previous years. Table 32 shows the number of tests by DHB and Table 33 shows the breakdown by age, ethnicity and NZ deprivation quintile. Table 32: Diagnostic testing volumes for unscreened women by DHB, January 2012 to December 2015 DHB Number of diagnostic tests 2012 2013 2014 2015 Northland 10 6 7 8 Waitemata 37 24 22 22 Auckland 31 23 25 18 Counties Manukau 19 27 21 18 Waikato 16 24 14 15 2 5 6 8 Lakes 10 18 12 14 Bay of Plenty 5 - 1 3 Tairawhiti 11 6 7 7 Hawke’s Bay 13 11 5 11 Taranaki 9 11 11 8 MidCentral 4 2 3 2 Whanganui 17 16 30 36 Capital and 9 11 11 22 Hutt Valley 5 1 1 3 Wairarapa 7 1 4 6 Nelson Marlborough - 1 1 - West Coast 27 23 37 30 Canterbury - 2 4 2 South Canterbury 17 18 13 19 Southern 249 203 235 252 Total
Indicator 8: Diagnostic testing for unscreened women This section reports information on the number of women who completed prenatal diagnostic testing but were not screened in the 105 days prior to the diagnostic test. The indication for diagnostic testing is not reliably reported on laboratory request forms but it is likely that many of these women will have had an increased prior risk (eg, family history, previous child with Down syndrome, late maternal age) or a diagnostic test done for another reason and the karyotype reported or an abnormal ultrasound finding. Diagnostic volumes for unscreened women During the 2015 year, 252 diagnostic tests were completed for unscreened women. This is similar to the number undertaken in previous years. Table 32 shows the number of tests by DHB and Table 33 shows the breakdown by age, ethnicity and NZ deprivation quintile. Table 32: Diagnostic testing volumes for unscreened women by DHB, January 2012 to December 2015 DHB Number of diagnostic tests 2012 2013 2014 2015 Northland 10 6 7 8 Waitemata 37 24 22 22 Auckland 31 23 25 18 Counties Manukau 19 27 21 18 Waikato 16 24 14 15 Lakes 2 5 6 8 Bay of Plenty 10 18 12 14 Tairawhiti 5 - 1 3 Hawke’s Bay 11 6 7 7 Taranaki 13 11 5 11 MidCentral 9 11 11 8 Whanganui 4 2 3 2 Capital and 17 16 30 36 Hutt Valley 9 11 11 22 Wairarapa 5 1 1 3 Nelson Marlborough 7 1 4 6 West Coast - 1 1 - Canterbury 27 23 37 30 South Canterbury - 2 4 2 Southern 17 18 13 19 Total 249 203 235 252
antenatal-screening-down-syndrome-other-conditions-monitoring-jan2011-dec2015-may17.docx