Stage at diagnosis and survival among adult patients with cancer in Rwanda: A population-based study.

There are marked disparities in cancer survival in low-income countries compared to high-income countries, yet population-based data in the first is largely lacking. In this study, data from the national cancer registry of Rwanda were examined for 542 patients diagnosed with eight of the most common cancers of adults stomach (C16), colorectum (C18-20), liver (C22), breast (female) (C50), cervix (C53), ovary (C56), prostate (C61), and non-Hodgkin lymphomas (C82-85) between 2014 and 2017. Subjects were randomly selected for active followed-up to calculate 1-, 3-, and 5-year observed and relative survival (RS) by cancer type and stage. Overall, 53.7% of cases had died within 5 years of diagnosis. Five-year RS varied by malignancy and ranged from 17.6% (95% confidence interval [CI]: 6.7%-32.6%) for liver cancer to 68% (CI: 51.6%-79.8%) for cancers of the prostate. Stage was assigned for 71.6% of patients (n = 388 of 542), with over half (58%) having advanced stage (III/IV) at diagnosis. For all except liver and ovary, stage was a strong predictor of survival; for example, three-year observed survival was 90.9% and 44.8% (p-value: .002) for early and advanced breast cancer, respectively. This study demonstrates that stage specific survival can be obtained from population based cancer registries in sub Saharan Africa, data that are invaluable for international benchmarking, and for local planning and evaluation of cancer control programs.

Stage at diagnosis and survival by stage for the leading childhood cancers in Rwanda.

BACKGROUND: The lack of accurate population-based information on childhood cancer stage and survival in low-income countries is a barrier to improving childhood cancer outcomes. METHODS: In this study, data from the Rwanda National Cancer Registry (RNCR) were examined for children aged 0-14 diagnosed in 2013-2017 for the eight most commonly occurring childhood cancers: acute lymphoblastic leukaemia, Hodgkin lymphoma (HL), Burkitt lymphoma (BL), non-Hodgkin lymphoma excluding BL, retinoblastoma, Wilms tumour, osteosarcoma and rhabdomyosarcoma. Utilising the Toronto Childhood Cancer Stage Guidelines Tier 1, the study assigned stage at diagnosis to all, except HL, and conducted active follow-ups to calculate 1-, 3- and 5-year observed and relative survival by cancer type and stage at diagnosis. RESULTS: The cohort comprised 412 children, of whom 49% (n = 202) died within 5 years of diagnosis. Five-year survival ranged from 28% (95% confidence interval [CI]: 12.5%-45.6%) for BL to 68% (CI: 55%-78%) for retinoblastoma. For the cancers for which staging was carried out, it was assigned for 83% patients (n = 301 of 362), with over half (58%) having limited or localised stage at diagnosis. Stage was a strong predictor of survival; for example, 3-year survival was 70% (95% CI: 45.1%-85.3%) and 11.8% (2.0%-31.2%) for limited and advanced non-HL, respectively (p < .001). CONCLUSION: This study is only the second to report on stage distribution and stage-specific survival for childhood cancers in sub-Saharan Africa. It demonstrates the feasibility of the Toronto Stage Guidelines in a low-resource setting, and highlights the value of population-based cancer registries in aiding our understanding of the poor outcomes experienced by this population.

Cancer in patients with and without HIV infection in the national cancer registry of Rwanda.

OBJECTIVE: As antiretroviral therapy (ART) has been widely scaled up in Rwanda, life expectancies among people with HIV (PWH) have increased. With increasing viral suppression, AIDS-defining cancers (ADCs) typically decrease; however, as the PWH population ages, non-AIDS-defining cancers (NADCs) will be expected to increase. The aim of this study was to compare cancer diagnoses between PWH and patients without HIV in Rwanda and to describe the changes in the number and types of cancer over time. DESIGN: Retrospective cohort study. METHODS: Rwanda National Cancer Registry (RNCR) recorded the HIV status, primary site, and morphological description for cancer diagnoses from 2007 to 2018. Descriptive analyses were carried out by cancer group (HIV+ and HIV-). A portion of patients whose HIV status was unknown (63%) were excluded from the present analysis. RESULTS: Among the 20 258 cases registered in the Registry, there were 1048 PWH and 6359 HIV- individuals. The proportion of ADCs were significantly higher in the PWH group compared to those without HIV ( P  < 0.001). Among PWH, there was a longitudinal increase in NADCs and a decrease in ADCs ( P  < 0.001) over time. Among the ADCs in the PWH group, there was a significant decline in Kaposi sarcoma cases over time. CONCLUSIONS: The study demonstrates a decreasing frequency of ADCs driven by declines in Kaposi sarcoma diagnoses and an increased frequency of NADCs among PWH in Rwanda over time. These findings support a need for focusing early detection and management efforts on NADCs, as they begin to play a larger role in the disease processes that affect the aging PWH population.

A scoping review: Facilitators and barriers of cervical cancer screening and early diagnosis of breast cancer in Sub-Saharan African health settings.

To address gaps in access to cervical cancer screening and early diagnosis of breast cancer services in Sub-Saharan African (SSA), this scoping review was conducted to explore facilitators and barriers that exist on the patient-, provider-, and system-level. An extensive literature search was conducted in accordance with scoping review methodology and the Cochrane guidelines. Our search criteria were limited to original research studies conducted in community or clinical settings in SSA within the last 10 years (2010-2020). Themes found from this review included patient knowledge and provider education, access to screening services, trust, health-related behaviors, attitudes, values, and practices, community and social values, health infrastructure, resource allocation, and political will. Identified barriers included lack of knowledge about cervical and breast cancer among patients, gaps in education and training among providers, and lack of resources and health infrastructure at the facility level and within the overall health system. Facilitators included perceived risk of cancer, support and encouragement of the provider, and utilization of novel approaches in low-resource settings by health systems. To better address individual-, provider-, and health system and facility-based facilitators and barriers to care, there is a need for political and financial investment and further research on the health service delivery in specific national health systems, especially in the context of the global campaign to eliminate cervical cancer as a public health problem.