Document Detail


Incidence and outcomes of pregnancy-associated melanoma in New South Wales 1994-2008.
MedLine Citation:
PMID:  25349945     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: There is controversy about the interaction between melanoma and pregnancy. There is a lack of Australian data on pregnancy outcomes associated with melanoma in pregnancy, despite Australia having the highest incidence of melanoma in the world.
AIMS: Describe trends, maternal characteristics and pregnancy outcomes associated with pregnancy-associated melanoma in New South Wales.
MATERIALS AND METHODS: Population-based cohort study of all births (n = 1 309 501) of at least 20-week gestation or 400 g birthweight in New South Wales, 1994-2008. Logistic regression was used to analyse the association between melanoma in pregnancy and adverse birth outcomes.
RESULTS: 577 pregnancy-associated melanomas were identified, including 195 diagnosed during pregnancy and 382 diagnosed within 12 months postpartum. The crude incidence of pregnancy-associated melanoma increased from 37.1 per 100 000 maternities in 1994 to 51.84 per 100 000 maternities in 2008. Adjusting for maternal age accounted for the trend in pregnancy-associated melanoma. Melanomas diagnosed in pregnancy were thicker (median = 0.75 mm) than melanomas diagnosed postpartum (median = 0.60 mm) (P = 0.002). Pregnancy-associated melanoma was associated with the increased risk of large-for-gestational-age infant but not preterm birth, planned birth, caesarean section or stillbirth. Parity was inversely associated with pregnancy-associated melanoma, as women with three or more previous pregnancies had 0.59 times the odds of pregnancy-associated melanoma compared to nulliparous women (95% CI 0.42-0.84, P = 0.003).
CONCLUSIONS: The incidence of pregnancy-associated melanoma has increased with increasing maternal age. The observation of thicker melanomas in pregnancy and increased risk of large-for-gestational-age infants may suggest a role for growth-related pregnancy factors in pregnancy-associated melanoma.
Authors:
Melanie Bannister-Tyrrell; Christine L Roberts; Csilla Hasovits; Tanya Nippita; Jane B Ford
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-10-28
Journal Detail:
Title:  The Australian & New Zealand journal of obstetrics & gynaecology     Volume:  -     ISSN:  1479-828X     ISO Abbreviation:  Aust N Z J Obstet Gynaecol     Publication Date:  2014 Oct 
Date Detail:
Created Date:  2014-10-28     Completed Date:  -     Revised Date:  2014-10-29    
Medline Journal Info:
Nlm Unique ID:  0001027     Medline TA:  Aust N Z J Obstet Gynaecol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2014 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists.
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