癌症是全球性的复杂健康问题，对低收入和中等收入国家（LMICs）的卫生系统造成了巨大负担。随着全球癌症护理人力资源短缺的持续存在，这一负担变得更加严重和复杂。由于任务转移提供了解决人力资源短缺的替代方法，因此进行了以下研究问题的系统回顾：非医生卫生工作者在改善癌症控制服务准入方面的角色和任务范围是什么？本回顾的目的是批判性地确定、评估和呈现证据，以表明如何将任务转移整合和扩大规模，以扩大低收入和中等收入国家的优质癌症控制服务准入。检索了四个数据库――CINAHL、EMBASE、MEDLINE和SCOPUS，时间段为从创刊至2022年10月15日，包括所有报道将癌症控制服务任务转移给非医生卫生工作者的研究。按照2020年首选报告系统评价和荟萃分析（PRISMA）指南报告回顾过程。使用国立心脏、肺脏和血液研究所质量评估量表评估了偏倚风险。采用叙事综合法对研究进行了归纳总结。由于回顾只评估了被转移给非医生卫生工作者的任务范围，并且包含的研究特征存在异质性，因此无法进行荟萃分析。搜索共找到170篇文章，其中有16篇纳入了回顾。其中3篇是随机对照试验，4篇是集群随机对照试验，而9篇是横断面研究。任务转移到了初级卫生保健工作者、护士和社区卫生工作者。转移的任务包括筛查、患者教育和诊断程序。研究证据显示，执行的任务的质量和有效性是可比较的，并且在某些情况下甚至优于常规护理。研究结果表明，在某些癌症控制服务领域，如筛查、教育和诊断，任务可以转移给非医生卫生工作者，并且这种转移对改善某些癌症控制服务的准入是有效的。因此，本回顾显示，任务转移可能是解决当前癌症护理中人力资源短缺的有效策略，并且有必要研究沿着癌症连续体所需的护理，以更好地了解哪些干预措施最有效地可以转移给更高级的卫生专业人员，例如药剂师，以改善低收入和中等收入国家的癌症控制服务准入。版权所有© 2023 Elsevier Inc. 保留所有权利。

Cancer is a complex global health issue overburdening health systems especially in low- and middle-income countries (LMICs). This burden is becoming more severe and complex as the global shortage of cancer care workforce persists. Since task shifting offers an alternative to address workforce shortages, a systematic review with the following research question was carried out: What is the scope of roles and tasks shifted to nonphysician health workers in improving access to cancer control services? The aim of this review is to critically identify, appraise and present evidence on how task shifting could be integrated and scaled to expand access to quality cancer control services in LMICs.The aim of this review is to critically identify, appraise and present evidence on how task shifting could be integrated and scaled to expand access to quality cancer control services in LMICs.Four databases were searched - CINAHL, EMBASE, MEDLINE and SCOPUS from inception to October 15, 2022, and included all studies that reported task shifting of cancer control services to nonphysician health workers. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines was followed to report the review process. Risk of bias was assessed using the National Heart, Lung, and Blood Institute quality assessment scale. The studies were summarized using narrative synthesis. A meta-analysis could not be carried out because the review only assessed the scope of roles that were shifted to nonphysician health workers and because of the heterogeneity in the characteristics of the studies included in the review.The search identified 170 articles out of which 16 were included in the review. Three studies were randomized controlled trials, four were cluster randomized trials, while 9 were cross-sectional. Tasks were shifted to primary healthcare workers, nurses, and community health workers. Tasks shifted included screening, patient education, and diagnostic procedures. Evidence from the studies showed that the quality and effectiveness of tasks performed were comparable, and in some cases, better than usual care.Findings showed that tasks in certain areas of cancer control services such as screening, education, and diagnosis can be shifted to nonphysician health workers and that it could be effective in improving access to certain cancer control services. Therefore, this review has shown that task shifting could be an effective strategy in addressing current workforce shortages in cancer care and that there is a need to examine the care required along the cancer continuum to better understand which interventions can most effectively be shifted to more advanced health professionals such as pharmacists to improve access to cancer control services in LMICs.Copyright © 2023 Elsevier Inc. All rights reserved.