Objectives To evaluate the incidence and trends of cervical cancer in native Asians compared to Asians in the United States.
Methods Data were obtained from Taiwan Cancer Registry in Health and Welfare Data Center and United States Cancer Statistics between 2001 and 2017. SEER*Stat 8.3.8, Joinpoint regression program 22.214.171.124, Microsoft Excel calculated the age-adjusted incidence (AAI, per 100,000 women), age-specific incidence (ASI, per 100,000 women), and trends (average annual percent change, AAPC).
Results Compared to US Asians, native Asians had a significantly higher cervical cancer incidence at 7.8 vs. 5.1 per 100,000. Over time, the incidence in Taiwan is improving at a rate of 6% per year but remains high. Based on age groups, the incidence increased at a younger age in Whites (25–29 years) compared to an older age in US Asians (30–34 years) and native Asians (35–39 years). Although new cases peaked in Whites and US Asians after age 40 and then plateaued in the older age groups, native Asians continued to have an increase into age 80. In fact, the incidence of cancer in native Asians age 85 and older was 53.6 vs. 12.7 in US Asians, a four-fold difference.
Conclusions After age 40, cervical cancer incidence was increasing every 5-age years in native Asians while plateauing in the US. Native Asians aged 85+ years had a four-fold higher incidence of cervical cancer compared to age-matched US Asians. The lack of screening may explain these disparities.
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