Task shifting to nonphysician health workers for improving access to care and treatment for cancer in low- and middle-income countries- a systematic review.

BACKGROUND

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.

OBJECTIVE

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.

METHODS

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.

RESULTS

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.

CONCLUSIONS

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.