Projected time to elimination of cervical cancer in the USA: a comparative modelling study.
Projected time to elimination of cervical cancer in the USA: a comparative modelling study.
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DOI:
10.1016/s2468-2667(20)30006-2
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发表时间:
2020-04
期刊:
影响因子:
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通讯作者:
Kim JJ
中科院分区:
文献类型:
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作者:
Burger EA;Smith MA;Killen J;Sy S;Simms KT;Canfell K;Kim JJ
In May 2018, the World Health Organization (WHO) Director-General issued a global call to eliminate cervical cancer (CC) as a public health problem, which will involve setting ambitious screening and vaccination coverage targets. We performed a comparative modeling analysis using two models from the Cancer Intervention and Surveillance Modeling Network (CISNET) to explore the impact of adopting CC coverage targets outlined by the WHO on cervical cancer incidence in the United States. We used two independently-developed CISNET models that involved a dynamic multicohort-modeling platform to capture changes in human papillomavirus (HPV)-induced CC over time, including herd effects from vaccination. We evaluated nine alternative prophylactic HPV vaccination and cervical screening scale-up scenarios compared with a ‘status quo’ scenario that involved no additional interventions in the context of a threshold for CC elimination of 4 cases/100,000 women. Under status-quo assumptions, both models projected that CC incidence would fall below 4/100,000 women by year 2038–2046. Scaling up screening coverage to 90% was the most impactful intervention in terms of expediting elimination timing (10–13 years earlier) and relative cancer reductions, averting an average of 1,400–2,088 additional cases per year over 2020–2100. Increasing HPV vaccination coverage to 90% or vaccinating adults aged 26–45 years had minimal impacts on CC incidence. Sensitivity analysis using different population structures generated a range of −10/+27 years around ‘status quo’ predictions. These validated CISNET-Cervical models, which reflect uncertainty in the natural history of CC, found that the United States is on track to eliminate cervical cancer as a public health problem by 2038–2046. Elimination timing could be brought forward to 2028–2033 if higher screening coverage is achieved. These national average estimates do not apply to all subgroups of women; therefore, reaching under-screened and under-vaccinated women remain key to achieving CC elimination for all women.