Affiliation:
1. QIMR Berghofer Medical Research Institute Brisbane QLD
2. Cancer Council Queensland Brisbane QLD
Abstract
AbstractObjectivesTo estimate the incidence of melanoma in Australia among people with ancestries associated with low, moderate, or high risk of melanoma, by sex and 5‐year age group; to establish whether age‐specific incidence rates by ancestry risk group have changed over time.Study designModelling study; United States (SEER database) melanoma incidence rates for representative ancestral populations and Australian census data (2006, 2011, 2016, 2021) used to estimate Australian melanoma incidence rates by ancestry‐based risk.Setting, participantsAustralia, 2006–2021.Main outcome measuresAge‐specific invasive melanoma incidence rates, and average annual percentage change (AAPC) in age‐specific melanoma rates, by ancestry‐based risk group, sex, and 5‐year age group.ResultsThe proportion of people in Australia who reported high risk (European) ancestry declined from 85.3% in 2006 to 71.1% in 2021. The estimated age‐standardised melanoma incidence rate was higher for people with high risk ancestry (2021: males, 82.2 [95% confidence interval {CI}, 80.5–83.8] cases per 100 000 population; females, 58.5 [95% CI, 57.0–59.9] cases per 100 000 population) than for all Australians (males, 67.8 [95% CI, 66.5–69.2] cases per 100 000 population; females, 45.4 [95% CI, 44.3–46.5] cases per 100 000 population). AAPCs were consistently positive for Australians aged 50 years or older, both overall and for people with high risk ancestry, but were statistically significant only for some age groups beyond 65 years. AAPCs were negative for people aged 34 years or younger, but were generally not statistically significant.ConclusionsMelanoma incidence has declined in some younger age groups in Australia, including among people with high risk ancestry. Social and behavioural changes over the same period that lead to lower levels of ultraviolet radiation exposure probably contributed to these changes.
Funder
National Health and Medical Research Council
Cited by
1 articles.
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