Gynecologic and obstetric investigation · 2015
Primary Vulvo-Vaginal Cancers: Trends in Incidence and Mortality in Poland (1999-2012).
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Banas Tomasz, Pitynski Kzimierz, Jach Robert, Knafel Anna, Ludwin Artur, Juszczyk Grzegorz, Nieweglowska Dorota
Аннотация
BACKGROUND: The aim of this study was to determine the incidence, mortality rates and trends of vulvar and vaginal cancers in Poland.
METHODS: Data were retrieved from the Polish National Cancer Registry. Age-standardised rates (ASRs) of cancer incidence and mortality were calculated by direct standardisation, and joinpoint regression was performed to describe the trends using the average annual percent change (AAPC).
RESULTS: From 1999 to 2012, the number of diagnosed cases of vulvar cancer was 5,958, and the ASRs of incidence varied from 0.99 to 1.18, with a significant trend towards a decrease (AAPC -0.78; p < 0.05). The ASR of mortality varied from 0.39 to 0.62, with a slight but insignificant increase in trend (AAPC 0.72; p > 0.05). The ASR of vaginal cancer incidence varied from 0.21 to 0.31, while the ASR of mortality ranged from 0.09 to 0.22. This study also proved a significantly falling trend in vaginal cancer mortality (AAPC -4.69; p < 0.05) and a decreasing trend in vaginal cancer incidence (AAPC -1.67; p > 0.05).
CONCLUSION: The rarity of vulvar and vaginal cancers as well as the decline in their incidence rates should not discourage further research on the epidemiology and treatment of these conditions.
METHODS: Data were retrieved from the Polish National Cancer Registry. Age-standardised rates (ASRs) of cancer incidence and mortality were calculated by direct standardisation, and joinpoint regression was performed to describe the trends using the average annual percent change (AAPC).
RESULTS: From 1999 to 2012, the number of diagnosed cases of vulvar cancer was 5,958, and the ASRs of incidence varied from 0.99 to 1.18, with a significant trend towards a decrease (AAPC -0.78; p < 0.05). The ASR of mortality varied from 0.39 to 0.62, with a slight but insignificant increase in trend (AAPC 0.72; p > 0.05). The ASR of vaginal cancer incidence varied from 0.21 to 0.31, while the ASR of mortality ranged from 0.09 to 0.22. This study also proved a significantly falling trend in vaginal cancer mortality (AAPC -4.69; p < 0.05) and a decreasing trend in vaginal cancer incidence (AAPC -1.67; p > 0.05).
CONCLUSION: The rarity of vulvar and vaginal cancers as well as the decline in their incidence rates should not discourage further research on the epidemiology and treatment of these conditions.