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|Title:||Impact of the National Cervical Screening Programme in New Zealand by age: analysis of cervical cancer trends 1985-2013 in all women and in Māori women|
|Authors:||Smith MA; Edwards S; Canfell K|
|Categories:||Cancer Type - Cervical Cancer|
Early Detection, Diagnosis, and Prognosis - Resources and Infrastructure
|Journal Title:||Cancer Causes Control|
|Page number start:||1393|
|Page number end:||1404|
|Abstract:||Background New Zealand is an example of a country with a well-established cytology-based screening program. New Zealand’s National Cervical Screening Programme (NCSP) commenced in 1990, and recommends three-yearly cytology-based screening for women aged 20–69 years. In 2018, the NCSP will transition to five-yearly HPV-based screening for women aged 25–69 years. The aim of this study was to assess the impact of the program to date in different groups, to provide a benchmark for the new program. Methods Analysis of cervical cancer trends in New Zealand by age and ethnicity over the period 1985–2013, and by morphology over the period 1997–2013, using data from the New Zealand Cancer Registry was conducted. Results The overall incidence of cervical cancer was 56% (95% CI 51–60%) lower in 2009–2013 than in 1985–1989, and significant reductions were observed in women aged 25–49, 50–69, and 70 + years. Relative reductions in cervical cancer were very similar for Māori and non-Māori women aged 25–49 (50% in Māori; 52% in non-Māori) and 50–69 years (65% in Māori; 69% in non-Māori). In contrast, incidence appeared to increase after around 1996 in women aged 20–24. The increasing trend was significant for women aged 20–24 overall and for non-Māori women (p < 0.01 in both cases). Conclusion There have been substantial reductions in cervical cancer among women aged 25 + years in New Zealand since the inception of the NCSP, and these reductions are similar in Māori and non-Māori women. Cervical cancer incidence among women 20–24 years has not declined since the NCSP began, and appears to be increasing.|
|Division:||Cancer Research Division|
|Appears in Collections:||Research Articles|
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