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Trends in the Incidence of Pancreatic Adenocarcinoma in All 50 United States Examined Through an Age-Period-Cohort Analysis.


ABSTRACT:

Background

Pancreatic ductal adenocarcinoma is a major contributor to cancer-related mortality in the United States. We aimed to investigate trends in incidence rates from all 50 states from 2001 to 2016, overall and by race, sex, and state and using age-period-cohort analyses.

Methods

Age-adjusted incidence rates and trends in adults aged 35?years and older were calculated using data from the US Cancer Statistics registry. We used joinpoint regression to compute annual percent changes (APC) and average annual percent changes. We also analyzed incidence trends by age groups and birth cohorts through age-period-cohort modeling.

Results

Age-standardized incidence rates increased by 1.23% (95% confidence interval [CI] = 0.92% to 1.54%) annually between 2001 and 2008 but were stable between 2008 and 2016 (APC?=?0.11%, 95% CI = -0.13% to 0.35%). APCs and inflection points were no different for men and women. Rates increased statistically significantly among non-Hispanic whites (NHW) and non-Hispanic blacks between 2001 and 2007 and between 2001 and 2008, respectively, but, in later years, rates increased slowly among NHWs (APC?=?0.36%, 95% CI = 0.12% to 0.60%), and were stable among non-Hispanic blacks (APC = -0.40%, 95% CI = -0.89% to 0.10%). The number of states with age-standardized incidence rates no less than 20.4 per 100 000 increased from 16 in 2001-2003 to 40 by 2015-2016. We found a strong birth cohort effect in both men and women and increasing rates among successive birth cohorts of NHWs.

Conclusions

The incidence of pancreatic ductal adenocarcinoma has consistently increased in the United States, albeit at slower rates recently. We observed notable increases among NHWs and in some states in the central and southern part of the country.

SUBMITTER: da Costa WL 

PROVIDER: S-EPMC7365041 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Publications

Trends in the Incidence of Pancreatic Adenocarcinoma in All 50 United States Examined Through an Age-Period-Cohort Analysis.

da Costa Wilson L WL   Oluyomi Abiodun O AO   Thrift Aaron P AP  

JNCI cancer spectrum 20200509 4


<h4>Background</h4>Pancreatic ductal adenocarcinoma is a major contributor to cancer-related mortality in the United States. We aimed to investigate trends in incidence rates from all 50 states from 2001 to 2016, overall and by race, sex, and state and using age-period-cohort analyses.<h4>Methods</h4>Age-adjusted incidence rates and trends in adults aged 35 years and older were calculated using data from the US Cancer Statistics registry. We used joinpoint regression to compute annual percent ch  ...[more]

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