Sexually Transmitted Infections in New Zealand: Annual Surveillance Report 2011

Wednesday 26th June 2019


Summary of sexually transmitted infections in New Zealand in 2011

In New Zealand, sexually transmitted infections (STIs) are not notifiable. Therefore, surveillance efforts are based on the voluntary provision of data from several different sources (sexual health clinics (SHCs), family planning clinics (FPCs), student and youth health clinics (SYHCs) and laboratories). Population and disease coverage varies with the data source.
 
This report summarises the surveillance information for STIs in 2011, and examines trends over time. It covers the STIs of public health importance, including chlamydia, gonorrhoea, genital herpes, genital warts, syphilis, non-specific urethritis (NSU), chancroid, granuloma inguinale (GI) and lymphogranuloma venereum (LGV). A slide set containing selected figures from the report is available by clicking here.

In 2011 in both the laboratory and clinic settings. A national estimated chlamydia rate (based on 15 DHBs) of 786 per 100 000 population was calculated from laboratory surveillance data. Over 70% of cases reported through laboratory surveillance data were aged between 15 and 24 years, and there were 105 cases of chlamydia in infants. Of the 15 DHBs meeting the laboratory selection criteria for analysis in 2011, Tairawhiti, Lakes and Hawke’s Bay DHBs reported the highest chlamydia rates.For both SHCs and SYHCs, the number of reported cases of chlamydia increased between 2006 and 2011. In contrast, FPCs reported a decrease in the number of cases over the same time period.

In 2011, a national gonorrhoea rate (based on 17 DHBs) of 67 per 100 000 population was estimated from laboratory surveillance data. Over 60% of cases reported by laboratories were aged between 15 and 24 years, and there were two cases of gonorrhoea in infants. Of the 17 DHBs meeting the laboratory selection criteria for analysis in 2011, Tairawhiti DHB reported the highest gonorrhoea rate, over five-times the estimated national rate. Between 2008 and 2011, there was an overall decrease of 11.3% in the gonorrhoea estimated national rate (calculated based on laboratory data from 13 DHBs). A decrease was also seen in gonorrhoea cases diagnosed in SHCs, FPCs and SYHCs during the same four year period.

The number of cases of syphilis reported by SHCs again decreased, from 119 cases in 2010 to 82 cases in 2011. One additional case was reported by a FPC.

From 2010 to 2011, SHCs reported a decrease in case counts of genital warts and non-specific urethritis (NSU) (by 10.9%, and 17.4%, respectively) and an increase in genital herpes case counts (2.7%).

No cases of chancroid, GI and LGV were reported in 2011.

Note: Click on the document links below to open. These documents are in PDF format. You will need to download the free Adobe Acrobat Reader to view them.

Report:

STIs in NZ: Annual Surveillance Report 2011

Tables:

SLIDES STIs in NZ: Annual Surveillance 2011

 

DOWNLOADS

STIs in NZ: Annual Surveillance Report 2011

Tables:

SLIDES STIs in NZ: Annual Surveillance 2011

Ph: +64 4 914 0700 Fax: +64 4 914 0770 Email: survqueries@esr.cri.nz