Sexually Transmitted Infections in NZ: Annual Surveillance Report 2009

Thursday 22nd August 2019


Summary of sexually transmitted infections in New Zealand in 2009

This report summarises the epidemiology of sexually transmitted infections (STIs) in 2009, and examines trends since 2005 for clinic-based surveillance, and 2006 for laboratory-based surveillance. 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).

Improvements to the reporting of laboratory surveillance data were implemented during 2009. Population-based rates of chlamydia and gonorrhoea for many District Health Boards (DHBs) and estimates of national rates based on the data from these DHBs are now being reported. This is the first time since STI surveillance began that comprehensive regional and national population estimates of STI incidence have been produced.

Chlamydia was again the most commonly reported STI in 2009. The number of cases and the clinic visit rate for chlamydia reported by sexual health clinics (SHCs) decreased between 2008 and 2009. A national chlamydia rate (based on 16 DHBs) of 803 per 100 000 population was reported from laboratory surveillance data. Over 70% of cases reported by SHCs and laboratories were aged less than 25 years.

The number of cases and clinic visit rate of gonorrhoea reported by SHCs decreased between 2008 and 2009. A national gonorrhoea rate (based on 18 DHBs) of 66 per 100 000 population was reported from laboratory surveillance data. Over 60% of cases reported by SHCs and laboratories were aged less than 25 years.

In 2009, the number of cases of syphilis reported by SHCs increased by 50.0% compared to 2008. SHCs reported higher case numbers for individuals aged over 40 years and those of European ethnicity.

In 2009, SHCs reported an increase in the number of cases of genital herpes, while a decrease was reported for genital warts and non-specific urethritis (NSU).

No cases of chancroid, granuloma inguinale (GI) and lymphogranuloma venereum (LGV) were reported in 2009.

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Report:

STIs in NZ: Annual Surveillance Report 2009

 

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STIs in NZ: Annual Surveillance Report 2009

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