Cervical cancer in Tanzania: A systematic review of current challenges in six domains

Evaluation of dose distribution to the tumor and organs at risk for cervical cancer patients treated using HDR-ICBT without central tandem applicator: A single center based experience

BACKGROUND AND PURPOSE

Cervical cancer is the most prevalent type of cancer among women in numerous low and middle-income countries. Tandem-based applicator is a widely used technique in High Dose Rate Intercavitary Brachytherapy (HDR-ICBT) for treating cervical cancer. For cases where central tandem insertion is not feasible due to patient-specific conditions, a ring-only applicator is used as an alternative. This paper presents an assessment of the impacts of dose distribution on cervical cancer treatment using HDR-ICBT without a central tandem applicator.

MATERIALS AND METHOD

Total 30 patients with cervical cancer (stage IB to IVA) who received brachytherapy with a ring applicator alone were singled out and used in the study. Orthogonal radiographs were used during dose treatment planning.

RESULTS

Results indicate that the dose normalized to the Equivalent dose in 2 Gy fractions (EQD2) at Manchester Dosimetry System (MDS) point A was 60.60 ± 1.08 Gy, which is significantly below the recommended curative dose of 80 Gy. This suggests that relying solely on a ring applicator may not provide enough radiation doses to the tumor. The results also show that the International Commission on Radiation Units (ICRU) dose point underestimated the radiation doses to the bladder and rectum, with the ratios of maximum dose (DMax) to DICRU for both organs being 1.15.

CONCLUSION

The study underscores the importance of not exclusively depending on a ring applicator alone in HDR-ICBT treatment for cervical cancer, as it may lead to suboptimal tumor doses. The ICRU point's results show an underestimation of the rectum and bladder dose during HDR-ICBT.

Towards 90-70-90 targets: Individual and community level factors associated with cervical cancer screening among women of reproductive age in Tanzania: A multi-level analysis based on 2022 Tanzania demographic and health survey

INTRODUCTION

Cervical cancer is a major public health problem worldwide, and is mainly caused by human papillomaviruses. More than 90% of cervical cancer cases can be prevented by using a human papilloma vaccine and screening. Despite the ongoing global cervical cancer screening target, uptake remains unacceptably low in sub-Saharan Africa such as Tanzania. Although cervical cancer is the leading cause of mortality in Tanzania, evidence on the individual- and community-level factors associated with cervical cancer screening among women of reproductive age is scarce. Therefore, this study aimed to determine the individual- and community-level factors associated with cervical cancer screening among women of reproductive age in Tanzania.

METHODS

This study used data from the 2022 Tanzania Demographic and Health Survey (TDHS). A weighted sample of 15,140 women of reproductive age was included in this study. Given the effect of clustering and binary nature of the outcome variable, we used a multilevel binary logistic regression model. The adjusted odds ratio (AOR) with 95% Confidence Interval (CI) was statistically significant. Moreover, the model with the lowest deviance best suited the data.

RESULTS

The overall uptake of cervical cancer screening among Tanzanian women was 7.28% (95% confidence interval [CI]: 6.87%, 7.70%). Women's age (25-34, 35-49), women with primary, secondary, and higher educational levels, being employed, a high household wealth index, visiting health facilities in the last 12 months, owning mobile phones, urban residence, and southern highlands, Southern, and Zanzibar administrative zones, were significantly associated with cervical cancer screening.

CONCLUSION

Cervical cancer screening among women in Tanzania was low. Low uptake underscores the need for increased focus on addressing the coverage of the 2030 Sustainable Development Goals (SDGs). The study would help policymakers create programs that consider education, employment, visiting health facilities, mobile phones, wealth, residence, and administrative zones, which would make women undergo cervical cancer screening. Pointing to women living with low cervical cancer screening could help increase their uptake and achieve the targets of the national and World Health Organization.

Preparing patient navigators and assessing the impact of patient navigation in promoting cervical cancer screening uptake, knowledge, awareness, intention, and health beliefs: a protocol for a randomized controlled trial

Aim

There are limited studies in Tanzania concerning the modality of preparing patient navigators and the influence of patient navigation strategies on cervical cancer screening. This protocol describes the preparation of patient navigators and assesses the impact of a patient navigation strategy on promoting cervical cancer screening uptake, knowledge, awareness, intention, and health beliefs.

Design

This is a protocol for a community-based randomized controlled trial.

Methods

The method is categorized into two phases. (1) Preparing patient navigators, which will involve the training of five patient navigators guided by a validated training manual. The training will be conducted over three consecutive days, covering the basic concepts of cervical cancer screening and guiding navigators on how to implement a patient navigation strategy in the communities. (2) Delivering a patient navigation intervention to community women (COMW) which will involve health education, screening appointments, navigation services, and counseling. The study will recruit 202 COMW who will be randomized 1:1 by computer-based blocks to either the patient navigation intervention group or the control group.

Public contribution

The study will prove that the trained patient navigators are easily accessible and offer timely and culturally acceptable services to promote cervical cancer screening uptake in communities.

Correlates associated with health insurance on cervical cancer screening in Tanzania: a comparison between the insured and uninsured women using demographic and health survey 2022

BACKGROUND

Cervical cancer is the most common cancer in women worldwide. This cancer affects more women in low- and middle-income countries (LMICs) including Tanzania. Economic losses related to cervical cancer can lead to a serious threat to collective financial well-being and increased risk for the households to catastrophic health expenditure. In most LMICs, out-of-pocket (OOP) payments are often necessary for utilizing medical care and co-payments of health insurance to access some of the health services. This study aimed to assess the influence of health insurance among women on access to cervical cancer screening by comparing insured and non-insured women in Tanzania.

METHODS

This study used secondary data collected through cross-sectional design during the Tanzania Demographic and Health Survey 2022. The study analyzed the information from a total sample of 15,254 women. In the analysis, all data were weighted using individual women sample weight to account for complex sampling design and non-response rate. The analysis of this study used univariate, bivariate and multivariable logistic regression analysis models.

RESULTS

Our analysis revealed that only 7.01% of women were screened for cervical cancer. Health insurance coverage was statistically significant with the cervical cancer screening. This means that the insured women had higher odds than those uninsured women for both the crude model (COR 3.12; CI 2.46, 3.96) and adjusted models (AOR 1.75; CI 1.35, 2.27). Age, education level, currently engaging in income-generating jobs and those who visited the health facility at least once in 12 months influenced the cervical cancer screening for both crude and adjusted models.

CONCLUSION

This study emphasizes the significance of various factors in cervical cancer screening in Tanzania. These factors include being covered by health insurance, socio-economic status and education. Health insurance coverage seems to be a predictor of accessing health services including screening for cervical cancer. Therefore, the government should take these factors, especially health insurance into account when formulating policies and making decisions to enhance access to cervical cancer screening for women in Tanzania including fasterning an ongoing process of establishing a prepayment scheme of mandatory health insurance for all citizens.

"In the Village That She Comes from, Most of the People Don't Know Anything about Cervical Cancer": A Health Systems Appraisal of Cervical Cancer Prevention Services in Tanzania

INTRODUCTION

Cervical cancer is the fourth most common cancer in women globally. It is the most common cancer in Tanzania, resulting in about 9772 new cases and 6695 deaths each year. Research has shown an association between low levels of risk perception and knowledge of the prevention, risks, signs, etiology, and treatment of cervical cancer and low screening uptake, as contributing to high rates of cervical cancer-related mortality. However, there is scant literature on the perspectives of a wider group of stakeholders (e.g., policymakers, healthcare providers (HCPs), and women at risk), especially those living in rural and semi-rural settings. The main objective of this study is to understand knowledge and perspectives on cervical cancer risk and screening among these populations.

METHODS

We adapted Risso-Gill and colleagues' framework for a Health Systems Appraisal (HSA), to identify HCPs' perspective of the extent to which health system requirements for effective cervical cancer screening, prevention, and control are in place in Tanzania. We adapted interview topic guides for cervical cancer screening using the HSA framework approach. Study participants (69 in total) were interviewed between 2014 and 2018-participants included key stakeholders, HCPs, and women at risk for cervical cancer. The data were analyzed using reflexive thematic analysis methodology.

RESULTS

Seven themes emerged from our analysis of semi-structured interviews and focus groups: (1) knowledge of the role of screening and preventive care/services (e.g., prevention, risks, signs, etiology, and treatment), (2) training and knowledge of HCPs, (3) knowledge of cervical cancer screening among women at risk, (4) beliefs about cervical cancer screening, (5) role of traditional medicine, (6) risk factors, and (7) symptoms and signs.

CONCLUSIONS

Our results demonstrate that there is a low level of knowledge of the role of screening and preventive services among stakeholders, HCPs, and women living in rural and semi-rural locations in Tanzania. There is a critical need to implement more initiatives and programs to increase the uptake of screening and related services and allow women to make more informed decisions on their health.

Cervical cancer screening among women with comorbidities: evidence from the 2022 Tanzania demographic and health survey

BACKGROUND

The aim of this study is to examine cervical cancer screening (CCS) uptake among women living with hypertension and HIV in Tanzania.

METHODS

We used the recently released 2022 Tanzania Demographic and Health Survey. The outcome variable assessed in the study was CCS, whereas chronic morbidities constituted the main explanatory variable. Data analysis was based on observations from 6,298 women aged 30-49 years. Multivariable logistic regression models were used to determine the association between hypertension and HIV status, and CCS uptake. The analyses were computed in STATA 18.

RESULTS

Out of the 6,298 respondents, only 805 (12.8%) had undergone CCS with higher screening uptake among those living with either one of the disease (28.5%) than among those living with neither hypertension or HIV. The highest proportion was found among those who had ever been diagnosed with hypertension (24.1%) and among women with positive HIV test results (36.7%). There was a significantly higher likelihood of undergoing screening for cervical cancer among women living with at least one of the diseases [AOR = 2.4; 95% CI: 1.4-2.8], compared to those without these conditions. Women diagnosed with hypertension showed increased likelihood of undergoing CCS [AOR = 1.4; 95%CI: 1.1-1.7]. Similarly, women with a positive HIV test result demonstrated higher odds of screening uptake [AOR = 5.2; 95%CI: 4.0-6.7].

CONCLUSION

The study found a positive association between comorbidities and CCS uptake in Tanzanian women. Our findings emphasize the critical importance of ensuring accessibility and adherence to essential screenings for individuals with chronic morbid conditions. Future efforts should focus on strengthening existing integrated services and identifying potential barriers to accessing CCS within these healthcare settings to optimize cervical cancer prevention efforts for individuals with chronic morbidities.

Medicolegal, infrastructural, and financial aspects in gynecologic cancer surgery and their implications in decision making processes: Quo Vadis?

Surgical decision making is complex and involves a combination of analytic, intuitive, and cognitive processes. Medicolegal, infrastructural, and financial factors may influence these processes depending on the context and setting, but to what extent can they influence surgical decision making in gynecologic oncology? This scoping review evaluates existing literature related to medicolegal, infrastructural, and financial aspects of gynecologic cancer surgery and their implications in surgical decision making. Our objective was to summarize the findings and limitations of published research, identify gaps in the literature, and make recommendations for future research to inform policy.

Cervical cancer management in a low resource setting: A 10-year review in a tertiary care hospital in Kenya

Background

Cervical cancer is one of the leading causes of cancer mortality among women in Kenya due to late presentations, poor access to health care, and limited resources. Across many low- and middle-income countries infrastructure and human resources for cervical cancer management are currently insufficient to meet the high population needs therefore patients are not able to get appropriate treatment.

Objective

This study aimed to describe the clinicopathological characteristics and the treatment profiles of cervical cancer cases seen at Moi Teaching and Referral Hospital (MTRH).

Methods

This was a retrospective cross-sectional study conducted at MTRH involving the review of the electronic database and medical charts of 1541 patients with a histologically confirmed diagnosis of cervical cancer between January 2012 and December 2021.

Results

Of the 1541 cases analyzed, 91% were squamous cell carcinomas, 8% were adenocarcinomas, and 1% were other histological types. Thirty-eight percent of the patients were HIV infected and less than 30% of the women had health insurance. A majority (75%) of the patients presented with advanced-stage disease (stage IIB-IV). Only 13.9% received chemoradiotherapy with curative intent; of which 33.8% received suboptimal treatment. Of the 13% who received surgical treatment, 45.3% required adjuvant therapy, of which only 27.5% received treatment. Over 40% of the women were lost to follow-up.

Conclusion

Most of the patients with cervical cancer in Kenya present at advanced stages with only a third receiving the necessary treatment while the majority receive only palliative treatment or supportive care.

The impact of in-house pathology services on downstaging cervical cancer in Tanzania over an 18-year period

PURPOSE

Reducing time between cancer screening, diagnosis, and initiation of treatment is best achieved when services are available in the same hospital. Yet, comprehensive cancer centers are typically unavailable in low- and middle-income countries (LMICs), where resources are limited and services scattered. This study explored the impact of establishing an in-house pathology laboratory at the largest public cancer hospital in Tanzania on the downstaging of cervical cancer.

METHODS

We examined clinical datasets of 8,322 cervical cancer patients treated at the Ocean Road Cancer Institute (ORCI). The first period included patients treated from 2002 to 2016, before establishment of the pathology laboratory at ORCI; the second period (post-pathology establishment) included data from 2017 to 2020. Logistic regression analysis evaluated the impact of the pathology laboratory on stage of cervical cancer diagnosis.

RESULTS

Patients treated during the post-pathology period were more likely to be clinically diagnosed at earlier disease stages compared to patients in the pre-pathology period (pre-pathology population diagnosed at early disease stage: 44.08%; post-pathology population diagnosed at early disease stage: 59.38%, p < 0.001). After adjustment for age, region of residence, and place of biopsy, regression results showed patients diagnosed during the post-pathology period had higher odds of early stage cervical cancer diagnosis than patients in the pre-pathology period (OR 1.35, 95% CI (1.16, 1.57), p < 0.001).

CONCLUSIONS

Integrated and comprehensive cancer centers can overcome challenges in delivering expedited cervical cancer diagnosis and treatment. In-house pathology laboratories play an important role in facilitating timely diagnosis and rapid treatment of cervical and possibly other cancers in LMICs.

Factors affecting cervical screening using the health belief model during the last decade: A systematic review and meta-analysis

AIMS

To examine the utility of the health belief model (HBM) and other socioeconomic factors in shaping cervical screening behaviors. Also, to provide recommendations on improving screening uptake.

METHODOLOGY

A systematic literature search was conducted using the PubMed/MEDLINE, Cochrane/CENTRAL, and Web of Science databases for articles reporting on the factors associated with cervical screening using the HBM within the period from January of 2002 to January of 2023. Effect sizes for the various HBM constructs were pre-determined using the log odds ratio (logOR) and expressed with their confidence intervals. All reporting was in line with the PRISMA guidelines.

RESULTS

A total of 21 studies were included in the final analysis comprised of 15,365 participants. Our pooled analysis demonstrated that perceived susceptibility (OR: 1.40, 95% CI, 1.03-1.89), perceived benefits (OR: 1.30; 95% CI, 1.13-1.50), and self-efficacy (OR: 1.11; 95% CI, 1.05-1.17) were significantly associated with both the uptake of and intention to adopt preventive measures against cervical cancer. Conversely, women with higher perceptions of barriers were less likely to adopt any measure for cervical cancer screening or prevention (OR: 0.72; 95% CI, 0.57-0.91). In terms of sociodemographic effectors, older age (OR: 1.09; 95% CI, 1.01-1.19), graduate/post-graduate education (OR: 2.80; 95% CI, 1.46-5.37), higher knowledge of cervical cancer (OR: 2.21; 95% CI, 1.27-3.84), and being married (OR: 3.89; 95% CI, 1.38-10.92) were all associated with altering preventive behaviors and intentions toward cervical cancer.

CONCLUSION

This review delineates the most important and effective cognitive components that should be targeted within interventions aiming to promote cervical cancer prevention.

Benefits and harms of cervical screening, triage and treatment strategies in women living with HIV

To support a strategy to eliminate cervical cancer as a public health problem, the World Health Organisation (WHO) reviewed its guidelines for screening and treatment of cervical pre-cancerous lesions in 2021. Women living with HIV have 6-times the risk of cervical cancer compared to women in the general population, and we harnessed a model platform ('Policy1-Cervix-HIV') to evaluate the benefits and harms of a range of screening strategies for women living with HIV in Tanzania, a country with endemic HIV. Assuming 70% coverage, we found that 3-yearly primary HPV screening without triage would reduce age-standardised cervical cancer mortality rates by 72%, with a number needed to treat (NNT) of 38.7, to prevent a cervical cancer death. Triaging HPV positive women before treatment resulted in minimal loss of effectiveness and had more favorable NNTs (19.7-33.0). Screening using visual inspection with acetic acid (VIA) or cytology was less effective than primary HPV and, in the case of VIA, generated a far higher NNT of 107.5. These findings support the WHO 2021 recommendation that women living with HIV are screened with primary HPV testing in a screen-triage-and-treat approach starting at 25 years, with regular screening every 3-5 years.

Prevalence of blood stream infections and associated factors among febrile neutropenic cancer patients on chemotherapy at Ocean Road Cancer Institute, Tanzania

BACKGROUND

Febrile Neutropenia (FN) caused by bacteria in cancer patients is associated with poor prognosis. The aim of this study was to determine the prevalence of FN and associated factors among cancer patients on chemotherapy at Ocean Road Cancer Institute (ORCI), Tanzania.

METHODS

A cross-sectional study was conducted from June to September 2019. Study participants were conveniently recruited. A desk review of participants medical records was performed. Standard microbiological procedures used to culture and identify the bacterial isolates from the positive blood cultures of participants that presented with FN. Kirby-Bauer disc diffusion was used to perform the antibiotics susceptibility testing. SPSS version 20.0 and MS Excel were used in data entry and analysis. Chi-Square was used as a measure of association between various factors and neutropenia. P-value less than 0.05 was considered statistically significant.

RESULTS

A total 213 participants were enrolled. Of these 76.1% were female. Most of the participants came from the Coast region. Majority of participants presented with breast Cancer (36.2%) and GIT (20.2%). The prevalence of FN and bacteremia was 5.6% and 35.3% respectively. Staphylococcus Aureus (60%) and Coagulase-Negative Staphylococci (40%) were the main isolates. Of the 6 isolates tested most were resistant to Co-Trimoxazole 4/6 (66.7%) and Doxycycline 3/6 (50%). FN was positively associated with chemotherapy regimen (P = 0.0001), platelets count (P = 0.0001) and use of G-CSF (P = 0.0001).

CONCLUSION

The prevalence of FN among the cancer patients on chemotherapy in Tanzania is low but associated with drug-resistant bacteria.

High-risk human papillomavirus genotype distribution among women living with and at risk for HIV in Africa

OBJECTIVE

Cervical cancer is a common preventable cancer among African women living with HIV (WLWH). Molecular diagnostics for high-risk human papillomavirus (HR-HPV) genotypes are standard components of cervical cancer screening in resource-rich countries but not in resource-limited settings. We evaluated HR-HPV genotypes among women with and without HIV in four African countries to inform cervical cancer preventive strategies.

METHODS

The African Cohort Study (AFRICOS) enrolled participants with and without HIV at 12 clinics in Tanzania, Kenya, Uganda, and Nigeria. Cervical cytobrush specimens from women were genotyped for 14 HR-HPV types using the multiplex Seegene Anyplex real-time PCR assay. Robust Poisson regression was used to estimate relative risks (RRs) and 95% confidence intervals (CIs) for factors associated with HR-HPV in WLWH.

RESULTS

From January 2015 to March 2020, 868 WLWH and 134 women living without HIV (WLWoH) were tested for HR-HPV with prevalence of 50.9 and 38.1%, respectively ( P  = 0.007). Among WLWH, 844 (97.4%) were antiretroviral therapy (ART)-experienced and 772 (89.7%) virally suppressed 1000 copies/ml or less. The most frequent HR-HPV types among WLWH were HPV-16 (13.5%), HPV-52 (9.5%), and HPV-35 (9.3%). HR-HPV infection was more common among Tanzanian WLWH (adjusted RR: 1.23, 95% CI 1.05-1.44, P  = 0.012). Also, WLWH with CD4 + T cells of less than 200 cell/μl had 1.51-fold increased risk of having HR-HPV (95% CI 1.23-1.86, P  < 0.001).

CONCLUSION

HR-HPV was common in WLWH in four African countries, particularly among women with low CD4 + cell count. Scale up of HPV vaccines and development of vaccines with broader activity against less common HR-HPV types may improve cervical cancer prevention in Africa.

Costs of delivering human papillomavirus vaccination using a one- or two-dose strategy in Tanzania

OBJECTIVE

As part of the Dose Reduction Immunobridging and Safety Study of Two HPV Vaccines in Tanzanian Girls (DoRIS; NCT02834637), the current study is one of the first to evaluate the financial and economic costs of the national rollout of an HPV vaccination program in school-aged girls in sub-Saharan Africa and the potential costs associated with a single dose HPV vaccine program, given recent evidence suggesting that a single dose may be as efficacious as a two-dose regimen.

METHODS

The World Health Organization's (WHO) Cervical Cancer Prevention and Control Costing (C4P) micro-costing tool was used to estimate the total financial and economic costs of the national vaccination program from the perspective of the Tanzanian government. Cost data were collected in 2019 via surveys, workshops, and interviews with local stakeholders for vaccines and injection supplies, microplanning, training, sensitization, service delivery, supervision, and cold chain. The cost per two-dose and one-dose fully immunized girl (FIG) was calculated.

RESULTS

The total financial and economic costs were US$10,117,455 and US$45,683,204, respectively, at a financial cost of $5.17 per two-dose FIG, and an economic cost of $23.34 per FIG. Vaccine and vaccine-related costs comprised the largest proportion of costs, followed by service delivery. In a one-dose scenario, the cost per FIG reduced to $2.51 (financial) and $12.18 (economic), with the largest reductions in vaccine and injection supply costs, and service delivery.

CONCLUSIONS

The overall cost of Tanzania's HPV vaccination program was lower per vaccinee than costs estimated from previous demonstration projects in the region, especially in a single-dose scenario. Given the WHO Strategic Advisory Group of Experts on Immunization's recent recommendation to update dosing schedules to either one or two doses of the HPV vaccine, these data provide important baseline data for Tanzania and may serve as a guide for improving coverage going forward. The findings may also aid in the prioritization of funding for countries that have not yet added HPV vaccines to their routine immunizations.

Acceptability of an integrated school-based HPV vaccination program within two districts of Tanzania: A qualitative descriptive study

Tanzania has one of the highest cervical cancer incidence and mortality rates in sub-Saharan Africa. The Tanzanian Ministry of Health developed an integrated adolescent health program, HPV-Plus, that combines HPV vaccination with additional health services: nutritional assessments, vision screening, and vaccination for adolescent girls, and education for all genders. This qualitative descriptive study evaluated the acceptability of the HPV-Plus program in two districts in Tanzania. Key informants comprising of adolescent girls, parents, program planners, and program implementers in Njombe and Dar es Salaam Tanzania were interviewed to assess the program acceptability. Transcripts were analyzed using a team-based iterative thematic analysis approach, consisting of both inductive and deductive coding. The Theoretical Framework of Acceptability was used to guide analysis, with themes categorized according to theoretical constructs of intervention coherence, affective attitudes and perceptions, and perceived effectiveness. Overall acceptability of the HPV-Plus program was high among stakeholders. The most salient finding regarding factors that influenced HPV vaccine acceptability was largely related to education and knowledge levels surrounding the HPV, cervical cancer, and HPV vaccines. The educational component of the HPV-Plus program was key in increasing acceptability. Parents reported the lowest acceptability towards the program. This was found to be primarily due to perceptions of not being sufficiently engaged throughout program implementation. Increasing acceptability of HPV vaccination programs among key stakeholders is critical to facilitating vaccine uptake and meeting vaccination coverage targets. Our results demonstrate that the inclusion of a comprehensive education component within the HPV-Plus program was key in facilitating HPV vaccine acceptability amongst stakeholders.

Long-term follow-up on HIV infected and non-infected women with cervical cancer from Tanzania: staging, access to cancer-directed therapies and associated survival in a real-life remote setting

Background

Worldwide 85% of cervical cancer (CC) related deaths occur in low- and middle-income countries. Sub-Saharan Africa is burdend by an overlapping high incidence of CC as well as HIV infection, a risk factor for HPV associated disease progression. Recent upscaling of CC screening activities increased the number of CC diagnoses in a previous unscreened population. The aim of the 2H study was to follow up on women with CC in the context of available health care services in Tanzania in relation to their HIV infection status.

Methods

This longitudinal observational cohort study included women with histological confirmed CC from Mbeya, Tanzania, between 2013–2019. All women were referred for CC staging and cancer-directed therapies (CDT), including surgery and/or radio-chemotherapy, or palliative care. Annual follow-up focused on successful linkage to CDT, interventions and survival. We assessed factors on compliance, used Kaplan–Meier-Survivor functions to evaluate survival time and poisson regression models to calculate incidence rate ratios on mortality (IRR) two years after diagnosis.

Results

Overall, 270 women with CC (123 HIV infected) were included. Staging information, available in 185 cases, showed 84.9% presented with advanced stage disease (FIGO ≥ IIB), no difference was seen in respect to HIV status. HIV-infected women were 12 years younger at the time of cancer diagnosis (median age 44.8 versus 56.4 years, p < 0.001). Median follow up period was 11.9 months (range 0.2–67.2). Survival information, available in 231 cases, demonstrated for women diagnosed in early-stage disease a median survival time of 38.3 months, in advanced-stage 16.0 months and late-stage disease 6.5 months after diagnosis. Of all women, 42% received CDT or palliative support. HIV co-infection and education were associated with higher health care compliance. CDT was significantly associated with lower 2-year mortality rates (IRR 0.62, p = 0.004). HIV coinfection did not impact mortality rates after diagnosis.

Conclusion

High numbers of advanced and late staged CC were diagnosed, compliance to CDT was low. A beneficial impact of CDT on CC mortality could be demonstrated for local health care services. This study indicates challenges for successful linkage and supports an effective scale up of cancer care and treatment facilities.

Factors Promoting Breast, Cervical and Colorectal Cancer Screenings participation: A Systematic Review

Objective

The present study aims at systematically reviewing research conducted on factors promoting breast, cervical and colorectal cancer screenings participation.

Methods

A literature search in MEDLINE/PubMed and PsycInfo from January 2017 to October 2021 was performed. Data extraction, researchers' full agreement and the inclusion criteria produced 102 eligible studies. Data were narratively synthesized and critically interpreted.

Results

Multiple factors favoring or hindering breast, cervical and colorectal cancer screenings were identified and summarized as factors operating at the individual level (background information, individual characteristics, emotions related to screening procedure and to cancer, knowledge and awareness), at the relational level (relationships with healthcare staff, significant others, community members), and at the healthcare system level (systems barriers/policy, lack of staff). A critical appraisal of studies revealed a fragmentation in the literature, with a compartmentalization of studies by type of cancer screening, country and specific populations of destination.

Conclusions

Overall findings indicated that greater integration of research results obtained independently for each cancer diagnosis and within the different countries/populations could foster a more comprehensive understanding of factors potentially enhancing the participation in breast, cervical and colorectal cancer screenings worldwide. This review, which is grounded in the current context of globalization and superdiversification in population, can help to enhance a better integration between research and practices, by supporting the development of more effective and inclusive evidence‐based interventions and health‐promotion campaigns worldwide. Research and practical implications are highlighted and discussed.

Human papillomavirus self-sampling for cervical cancer screening among women in sub-Saharan Africa: a scoping review protocol

INTRODUCTION

Evidence shows that women in sub-Saharan Africa have high rates of cervical cancer (CC) mortality compared with women in high-income countries. Effective screening programmes have significantly reduced the burden of CC in high-income countries. Self-sampling for human papillomavirus testing (HPVSS) has been reported to increase the participation and engagement of women in CC screening. Before HPVSS can be introduced for CC screening there is a need to establish its acceptability among end-users to ensure the increase in CC screening rates. Here, we outline a protocol for a scoping review aimed at mapping literature on the use and acceptability of HPVSS for screening CC in sub-Saharan Africa to reveal gaps to guide future research and practice.

METHOD

The scoping review protocol was developed according to Arksey and O'Malley and Levac et al, and guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews. We will search Scopus, PubMed, Medline Ovid, Cochrane and Web of Science databases for evidence on the use and acceptability of HPVSS published between January 2011 and July 2021. We will also search grey literature in the form of dissertations/theses, conference proceedings, websites of international organisations such as the WHO, and relevant government reports reporting evidence on HPVSS programmes for screening CC among women in sub-Saharan Africa.

ETHICS AND DISSEMINATION

No ethical approval is needed for the study as it will not include animals or human participants. The results of the proposed scoping review will be disseminated electronically in peer-reviewed journals, in print and through conference presentations.

Establishment of a Percutaneous Nephrostomy Service to Treat Obstructive Uropathy Secondary to Cervical Cancer in Tanzania

Background Cervical cancer is the fourth most common cancer among women globally. Age-standardized cervical cancer mortality is higher in East Africa than anywhere else in the world. Prior to October 2018, patients presenting with obstructive uropathy secondary to late-stage cervical cancer in Tanzania who were no longer eligible for palliative chemoradiation therapy were discharged home without intervention. The purpose of this study was to evaluate whether the establishment of a percutaneous nephrostomy service in a quaternary hospital in Dar es Salaam, Tanzania, a resource-limited country, benefits patients who have late-stage cancer induced obstructive uropathy.

Materials and Methods A retrospective study was performed on patients who presented with obstructive uropathy secondary to late-stage cervical cancer and have undergone percutaneous nephrostomy at Muhimbili National Hospital and Ocean Road Cancer Institute from October 2018 to May 2021. Twenty-one interventional radiology (IR) teaching teams consisting of IR attendings, IR technologists, and nurses travelled to Tanzania from North America on monthly 2-week trips during that period. A review of preprocedural, procedural, and follow-up data was performed using Research Electronic Data Capture. Statistical analysis and comparison were performed on patients' creatinine levels preprocedure, 7 days and 30 days postprocedure.

Results Sixty-two patients qualified to be included in this study. In addition to the initial 62 nephrostomy placements, 14 follow-up procedures were performed either under visiting faculty supervision or independently by the Tanzanian IR fellows. Technical success rate was 98.7%. Complications (SIR Class A and B) occurred in eight cases. The average preprocedure creatinine (1051.48 ± 704.08µmol/L) decreased by 59% 7 days postprocedure and by 77% 30 days postintervention. Postprocedural clinical information was obtained for 28 (45.2%) patients and 18 were able to restart chemotherapy following nephrostomy.

Conclusion Prior to 2018, percutaneous nephrostomy placement was not available in Tanzania. This study presented the initial safety, technical feasibility, and clinical benefit of establishing a percutaneous nephrostomy service in such a resource-limited setting.

Risk factors for cervical cancer among distinct populations in low-resource countries: feasibility of cervical cancer screen-and-treat program on ukerewe island of lake victoria, Tanzania

PURPOSE OF REVIEW

A mass cervical cancer screening using World Health Organization-endorsed visual inspection with acetic acid (VIA) and cryotherapy triage was conducted over 5 days at Nansio District Hospital on Ukerewe Island, Tanzania in Lake Victoria. The aim was to evaluate the feasibility of a pilot screen-and-treat on a lower resource island and compare the results to previously held screen-and-treats in higher resource mainland settings.

RECENT FINDINGS

Two hundred and eight-two women underwent VIA on Ukerewe Island during July 2017. The frequency of abnormal VIA screens was nearly twice that observed on the mainland in 2016 (18.4% vs 10.7%, respectively; P = 0.0091). Island women had lower rates of grand multiparity (19.8% vs 26.8%, P = 0.02) and more island women did not know their HIV status (80% vs 50%, P < 0.0001). Overall, 31% of abnormal VIA screens occurred among women under 30 years between the two sites. Due to the cost of transporting CO2 tanks, cryotherapy was nearly twice as expensive on the island as compared to the mainland.

SUMMARY

Although transfer of an entire pilot screen-and-treat program to Ukerewe Island is feasible and well-received, expenses associated with ferrying equipment may be prohibitive to long-term sustainability. Higher VIA positivity rates were observed on the island.

The Effect of Peer-Led Navigation Approach as a Form of Task Shifting in Promoting Cervical Cancer Screening Knowledge, Intention, and Practices Among Urban Women in Tanzania: A Randomized Controlled Trial

BACKGROUND

Even though the government's priorities in preventing cervical cancer are implemented in urban areas, the screening rate remains unsatisfactory at 6%, compared to 70% recommended by the world health organization. The ongoing public health education has not resulted in sufficient screening rates. The study aims to assess peer-led navigation (PLNav) in promoting cervical cancer screening knowledge, intention, and practices among urban women in Tanzania. Since PLNav is the form of task shifting, it involves delegating cervical-cancer-related tasks from healthcare professionals to community health workers (CHWs).

METHODS

It is a community-based randomized controlled trial conducted in Dar es Salaam in Tanzania March-Sept 2020. The PLNav involved the CHWs delivering health education, counselling and navigation assistance to community women (COMW). The CHWs help women who have never undergone cervical cancer screening (CCS) and those who have undergone CCS but with a precancerous cervical lesion to overcome screening barriers. The data related to PLNav were analyzed by descriptive statistics, an independent-samples t-test, repeated measures ANOVA and linear regression.

RESULTS

The repeated measures ANOVA across time showed that PLNav intervention on mean knowledge score changes was statistically significant in the intervention group compared with the control group's usual care, [F (1, 43) = 56.9, P < .001]. At the six-month follow-up, 32 (72.7%) out of 44 participants from the intervention group had screened for cervical cancer, and only one participant (2.3%) from the control group screened. The PLNav intervention on CCS uptake changes was statistically significant in the intervention group compared with usual care in the control group [F (1, 43) = 100.4, P < .001]. The effect of time on CCS uptake in the intervention and control groups was statistically significant [F (1.64, 70.62) = 73.4, P < .001].

CONCLUSION

Peer-led navigation (PLNav) was effective in promoting cervical cancer screening knowledge, intention, and uptake.

Precancerous cervical lesion in Ethiopia: systematic review and meta-analysis

BACKGROUND

Though cervical cancer is largely preventable, it is still the second most common female cancer globally and the leading cause of cancer deaths among females in African. Though many efforts have been done to study the burden of the disease in Ethiopia, primary studies examining the prevalence of precancerous cervical lesions are fragmented. Hence, this systematic review and meta-analysis is aimed at estimating the pooled prevalence of precancerous cervical lesion and its trends in Ethiopia.

METHODS

This systematic review and meta-analysis was conducted using the following electronic databases. PubMed, Web of Science, SCOPUS, Science Direct, Google Scholar, African Index Medicus (AIM), African Journals Online databases, and Addis Ababa and Bahir Dar Universities research repositories were searched following the Preferred Items for Systematic Review and Meta-analysis (PRISMA) Guideline. STATA 15 statistical software was used to analyze the data. The quality of the included studies was assessed using the Joanna Briggs Institute (JBI) quality appraisal tool for meta-analysis. Heterogeneity between studies was assessed using the Cochrane Q test and I2 test statistics based on the random effects model. A random effects model was computed to estimate the pooled prevalence of precancerous cervical lesion in Ethiopia. Finally, the trend of precancerous cervical lesion in the country was presented.

RESULT

Seventeen studies with a total of 26,112 participants were included in the analysis. The pooled prevalence of precancerous cervical lesion was 15.16 (95% CI 10.16-19.70). The subgroup analysis by region showed the highest prevalence of precancerous cervical lesion at the Southern Nations and Nationalities Peoples Region (19.65%; 95% CI 15.51-23.80). The trend of precancerous cervical lesion prevalence showed an increased pattern over time.

CONCLUSION

Approximately one among six of the study participants had precancerous cervical lesion. The trend also showed that there is still an increasing precancerous cervical lesion in Ethiopia. Best practices in achieving high vaccination coverage shall be informed by practices in other successful countries.

Expression analysis of p16 and TOP2A protein biomarkers in cervical cancer lesions and their correlation with clinico-histopathological characteristics in a referral hospital, Tanzania

Introduction

Biomarkers yield important information for early diagnosis of cervical cancer. However, they are rarely applied for prognosis of cervical cancer in Tanzania, where visual inspection assay with acetic acid or Lugol’s iodine and Pap test are being used as the standard screening/ diagnostic methods.

Methods

This was a retrospective hospital-based cross-sectional study that was conducted to assess cyclin-dependent kinase inhibitor (p16) and topoisomerase II-alpha (TOP2A) proteins expression among women seeking cervical cancer care at Kilimanjaro Christian Medical Centre, Tanzania between May 1, 2017 and May 10, 2018. Immunohistochemistry technique was used to detect the expressions of p16 and TOP2A proteins from the retrieved formalin-fixed and paraffin-embedded (FFPE) cervical biopsies.

Results

A total of 145 patients, with a mean age of 52.1 ± 12.9 years, were included in this study. Upon immunohistochemistry staining, 103 (71.0%) and 90 (62.1%) were p16 and TOP2A positive respectively. There was a strong association between histopathological class and p16/TOP2A expression levels (Fisher’s exact test, p<0.001). Moreover, there was a strong positive correlation between p16/TOP2A and cancerous cervical lesions (Spearman’s rank correlation coefficients = 0.833 and 0.687, p = 0.006 and 0.005, respectively). The age-adjusted odds ratio for predicting cervical cancer lesions were independently significant for p16/TOP2A biomarkers in FFPE cervical tissues [p16: OR = 1.142 (95% CI: 1.059–1.232, p<0.001) and TOP2A: OR = 1.046 (95% CI: 1.008–1.085, p = 0.015)]. Importantly, the diagnostic performance of p16 was higher than that of TOP2A in the diagnosis of cancerous lesions from non-cancerous cervical lesions (sensitivity: 97.2% versus 77.6%, accuracy: 92.8% versus 87.8%, respectively).

Conclusion

Our study has highlighted that over-expression of TOP2A is related to the grade of cervical intraepithelial neoplasia but does not predict prognosis in cervical cancer. Similarly, expression of p16 is related to degree of histological dysplasia and malignancy, suggesting its prognostic and predictive value in the management of cervical cancers. Further bigger studies are needed to validate their applications in the early diagnosis of cervical cancer.

Visual inspection with acetic acid screening for cervical cancer among women receiving anti-retroviral therapy for human immunodeficiency virus infection in northern Tanzania

AIM

To evaluate visual inspection with acetic acid (VIA) screening for cervical cancer among human immunodeficiency virus (HIV)-positive patients in an East African community.

METHODS

During a July 2018 cervical cancer screen-and-treat in Mwanza, Tanzania, participants were offered free cervical VIA screening, cryotherapy when indicated, and HIV testing. Acetowhite lesions and/or abnormal vascularity were designated VIA positive in accordance with current guidelines. The association between VIA results and HIV status was compared using Chi-square and Fisher exact tests.

RESULTS

Eight hundred and twenty-four of 921 consented participants underwent VIA screening and 25.0% (n = 206) were VIA positive. VIA-positive nonpregnant women (n = 147) received cryotherapy and 15 (1.8%) with cancerous-appearing lesions were referred to Bugando Hospital. Sixty-six women were HIV-positive and included 25 diagnosed with HIV at the cervical cancer VIA screening and 41 with a prior diagnosis of HIV who were receiving antiretroviral therapy (ART) at the time of cervical cancer VIA screening. Sixty-four of these 66 patients, were screened with VIA. HIV infection was not associated with VIA findings. Abnormal VIA positive screening was observed in 20.3% (n = 13) of HIV-positive patients and in 24.4% (n = 145) of HIV-negative patients (p = 0.508). A nonsignificant trend of higher VIA positive screens among newly diagnosed HIV patients of 26.1% (n = 6) versus patients with preexisting HIV on ART of 17.1% (n = 7) was observed (p = 0.580).

CONCLUSION

The unexpected lack of correlation between HIV infection and VIA positivity in a community with access to ART warrants additional research regarding the previously described role of ART in attenuating HPV-mediated neoplasia.

Cervical Cancer Prevention in Low- and Middle-Income Countries

Cervical cancer is one of the commonest cancers afflicting women in low and middle income countries, however, both primary prevention with human papillomavirus vaccination, and secondary prevention with screening programs and treatment of preinvasive disease are possible. A coordinated approach to eliminating cervical cancer, as has been called for by the World Health Organization, requires a complex series of steps at all levels of a health system. This article outlines the current state of cervical cancer prevention in low and middle income countries, the innovations being employed to improve outcomes, and consideration of the next steps needed as we move towards global elimination.

Developing Research Education Groups in African Cancer Centers: The Experience in Tanzania

Research productivity and outcomes of junior researchers are usually correlated with the degree and quality of mentorship they receive. A bottom-up approach was followed to develop a research group at the Ocean Road Cancer Institute (ORCI), the major cancer center in Tanzania, to build upon the existing clinical and research resources and institutional global collaborations. The ORCI is a clinical center focused on radio- and chemo-therapy treatment of cancer patients from all over Tanzania. In addition, ORCI has a long-standing early detection program for educating women and screening them for cervical cancer. The ORCI physicians have been exposed to cancer research for the past 20 years through non-degree and degree training in the USA and Europe. In addition, US and European groups have been conducting collaborative research and training of oncologists and graduate students at ORCI. The exposure to research through the above-listed venues motivated the clinicians at ORCI to develop their own Research Club (RC) to learn about research methods, seek independent funding, and outline a research agenda for cancer research in Tanzania. However, it seems that mentorship is needed to help the RC members apply the lessons learned from didactic teaching. Mentorship is also needed to enable the RC members to utilize the enormous clinical and epidemiologic data generated by the institutional programs for prevention, treatment, and follow up of patients. This manuscript describes the inception of the program and its achievements, limitations, and suggested opportunities for improvement as a possible model for other LMICs.

Views from Multidisciplinary Oncology Clinicians on Strengthening Cancer Care Delivery Systems in Tanzania

Background

In response to the increasing burden of cancer in Tanzania, the Ministry of Health, Community Development, Gender, Elderly and Children launched National Cancer Treatment Guidelines (TNCTG) in February 2020. The guidelines aimed to improve and standardize oncology care in the country. At Ocean Road Cancer Institute (ORCI), we developed a theory‐informed implementation strategy to promote guideline‐concordant care. As part of the situation analysis for implementation strategy development, we conducted focus group discussions to evaluate clinical systems and contextual factors that influence guideline‐based practice prior to the launch of the TNCTG.

Materials and Methods

In June 2019, three focus group discussions were conducted with a total of 21 oncology clinicians at ORCI, stratified by profession. A discussion guide was used to stimulate dialogue about facilitators and barriers to delivery of guideline‐concordant care. Discussions were audio recorded, transcribed, translated, and analyzed using thematic framework analysis.

Results

Participants identified factors both within the inner context of ORCI clinical systems and outside of ORCI. Themes within the clinical systems included capacity and infrastructure, information technology, communication, efficiency, and quality of services provided. Contextual factors external to ORCI included interinstitutional coordination, oncology capacity in peripheral hospitals, public awareness and beliefs, and financial barriers. Participants provided pragmatic suggestions for strengthening cancer care delivery in Tanzania.

Conclusion

Our results highlight several barriers and facilitators within and outside of the clinical systems at ORCI that may affect uptake of the TNCTG. Our findings were used to inform a broader guideline implementation strategy, in an effort to improve uptake of the TNCTGs at ORCI.

Implications for Practice

This study provides an assessment of cancer care delivery systems in a low resource setting from the unique perspectives of local multidisciplinary oncology clinicians. Situational analysis of contextual factors that are likely to influence guideline implementation outcomes is the first step of developing an implementation strategy for cancer treatment guidelines. Many of the barriers identified in this study represent actionable targets that will inform the next phases of our implementation strategy for guideline‐concordant cancer care in Tanzania and comparable settings.

Guidelines to improve and standardize oncology care in Tanzania were developed in 2020. This study utilized focus group discussions to assess the barriers and facilitators to guideline implementation at Ocean Road Cancer Institute.

Multimodality screening and prevention of cervical cancer in sub-Saharan Africa: a collaborative model

PURPOSE OF REVIEW

Although cervical cancer continues to decrease in incidence throughout the developed world because of rigorous screening and vaccination campaigns, the disease remains a major cause of cancer-related morbidity and mortality in resource-limited regions including sub-Saharan Africa. This review summarizes current efforts to implement cost-effective and widespread cervical cancer education, screening, and community-based interventions in Africa and the challenges faced by local healthcare workers.

RECENT FINDINGS

Effective screening with cytology (with or without high-risk human papillomavirus [HPV] DNA testing) as well as HPV self-sampling remains problematic in African countries because of a paucity of cytopathologists and resources. Accordingly, visual inspection of the cervix with acetic acid (VIA) with cryotherapy triage has gained traction in mass-screening campaigns because of low-cost supplies.

SUMMARY

Public education to facilitate screening is essential. VIA remains a strong community-based approach. The involvement of technology in teaching local providers, advertising screenings to the community, and helping improve follow-up may also improve screening efforts. Ultimately, the best form of prevention is through HPV vaccination, which also requires implementation of ongoing public education programs.

Tanzanian women´s knowledge about Cervical Cancer and HPV and their prevalence of positive VIA cervical screening results. Data from a Prevention and Awareness Campaign in Northern Tanzania, 2017 - 2019

Background: 14.9 million women (≥15 years) in Tanzania are at risk of developing cervical cancer.

Limited cancer care facilities, prevention programs and sparse knowledge among community members and healthcare workers contribute to late-stage presentation leading to a high mortality rate.

Objective: This study aims to scientifically accompany prevention and awareness campaigns (PrevACamp) in northern Tanzania in its real-world settings to obtain (1) a better understanding about cervical cancer and HPV knowledge amongst female PrevACamp participants and (2) to determine the prevalence of pre-cancerous lesions among women undergoing cervical cancer VIA screening.

Method: Cross-sectional survey among PrevACamp attendees in two regions in Northern Tanzania. Two data collections tools were used: Questionnaires and clinical data from VIA screening. Data were collected from October 2017 to March 2019.

Results: 2,192 PrevACamp attendees were interviewed and 2,224 received VIA screening. There was significant nescience on cervical cancer regardless of education level, resident status, or number of children as well as nescience on HPV in all age groups, especially in urban areas and misconceptions about cancer. Screening revealed VIA positivity rate of 3.1%.

Conclusion: There is an alarming lack of knowledge about cervical cancer and, to a lesser Extent, about HPV among the study participants. Having health insurance influenced the level of knowledge significantly. Outreach programs in rural areas appear to target the population in need of health education. Low positive VIA screening results are paralleled with lower HIV rates among the women. We assume that the high density of primary health care coverage in northern Tanzania contributes to these findings..

Elimination of cervical cancer in Tanzania: Modelled analysis of elimination in the context of endemic HIV infection and active HIV control

The World Health Organisation (WHO) has launched a strategic initiative for cervical cancer (CC) elimination which involves scaling up three interventions: human papillomavirus (HPV) vaccination, twice-lifetime HPV-screening screening and pre-cancer/cancer treatment by 2030. CC is challenging to control in countries with endemic human immunodeficiency virus (HIV), as women living with HIV (WLHIV) are at elevated risk of HPV infection, persistence and progression. This analysis estimated the impact of the elimination interventions on CC incidence and mortality but additionally considered more intensive screening for WLHIV, using Tanzania as an example. A dynamic HIV/HPV model was used to simulate the elimination strategy for vaccination, screening and pre-cancer/cancer treatment, with 3-yearly HPV-screening in WLHIV starting at age 25 years, in the context of sustained HIV control in Tanzania from 2020 to 2119. Without vaccination or HPV screening, CC incidence rates per 100 000 women are predicted to fall from 58.0 in 2020 to 41.6 (range: 39.1-44.7) in 2119, due to existing HIV control. HPV vaccination and twice-lifetime HPV-screening for the general population and 3-yearly screening for WLHIV, would reduce CC incidence to 1.3 (range: 1.3-2.5) by 2119, with elimination (<4/100 000) in 2076 (range: 2076-2092). CC mortality rates per 100 000 women are predicted to reach 1.1 (range: 1.1-2.1) with further reductions contingent on increased CC treatment access. Vaccination and 3-yearly HPV-screening for WLHIV is predicted to achieve elimination in the subgroup of WLHIV potentially as early as 2061 (range: 2061-2078), with a 2119 CC incidence rate of 1.7 (range: 1.7-3.3). Scaling-up vaccination and HPV-screening will substantially reduce CC incidence in Tanzania, with elimination predicted within a century. Three-yearly HPV-screening and HPV vaccination, at high coverage rates, would facilitate CC elimination among WLHIV, and thus accelerate elimination in the overall population.

An initiative to assess the quality of Tanzanian cervical cancer specimens for HPV and telomerase detection

The aim of our study was to assess the quality of Tanzanian cervical cancer specimens, evaluating telomerase alterations and human papilloma virus (HPV) infection in relation to histopathological characteristics since these biomarkers are not routinely analyzed. Thirty-two Tanzanian women with invasive cervical cancer were included in the study. Histopathological classification and all the analyses on tissue, including TERT immunohistochemistry, were performed at IRST IRCCS (Meldola, Italy). HPV typization was performed by pyrosequencing. FHACT™ was used to identify chromosomal aberrations. Nonparametric ranking statistics were used. The majority (75 %) of the cases analyzed were squamous carcinoma, while 12.5 % were adenocarcinoma. The presence of HPV infection was confirmed in 26/27 (96.3 %) cases. A high percentage of patients (88 %) were infected with HPV16 of whom 12 (44.4 %) with African type 1, and 4 (14.8 %) with African type 2. TERT expression evaluated in the entire case series showed a median H-score of 130 (range 3-270), with only one negative case. 88 % of the FISH-evaluable samples showed an amplification of the chromosomal region 3q26 (TERC) and/or 5p15, and 20q13, associated with a higher median expression of TERT (P = 0.0226). Despite pre-analytical problems in terms of sample fixation, we showed that the search for biomarkers such as HPV and telomerase is feasible in Tanzanian tissue. These markers could be important risk-stratification tools in this population.

Implementation of human papillomavirus video education for women participating in mass cervical cancer screening in Tanzania

BACKGROUND

Because the global disease burden of cervical cancer is greatest in Africa, the World Health Organization has endorsed visual inspection with acetic acid screening with cryotherapy triage for the screen-and-treat approach. With the lowest doctor-to-patient ratio worldwide (1:50,000), Tanzania has nearly 10,000 new cases of cervical cancer and 7000 deaths annually.

OBJECTIVE

We report on the feasibility of visual inspection with acetic acid in the severely resource-limited Mwanza district and on the impact of intervening education on baseline human papillomavirus and cervical cancer knowledge.

STUDY DESIGN

Two 5-day free visual inspection with acetic acid (VIA) clinics in urban Buzuruga and rural Sangabuye on the shores of Lake Victoria were approved by our university institutional review board and local Tanzanian health authorities. Participants completed a demographic survey and a 6-question (1 point per question) multiple choice test written in Kiswahili to assess baseline knowledge. A 15-minute educational video in Kiswahili (MedicalAidFilms: Understanding screening, treatment, and prevention of cervical cancer) was followed by repeated assessment using the same test, visual inspection with acetic acid screening, and optional HIV testing. Pre- and postvideo scores and change of score were analyzed via t test, analysis of variance, and multivariate regression. Significance was considered at P<.05.

RESULTS

From July 2, 2018 to July 6, 2018, 825 women were screened, and 207 women (25.1%) were VIA positive (VIA+). One hundred forty-seven VIA+ nonpregnant women received same-day cryotherapy. Seven hundred sixty women participated in an educational intervention-61.6% of whom were from an urban site and 38.2% from a rural site. The mean age was 36.4 (standard deviation, 11.1). Primary languages were Kiswahili (62.2%) and Kisukuma (30.6%). Literacy was approximately 73%, and average education level was equivalent to the seventh grade (United States). Less than 20% of urban and rural women reported access to healthcare providers. Mean score of the participants before watching the video was 2.22 (standard deviation, 1.76) and was not different between VIA+ and VIA negative groups. Mean score of the participants after watching the video was 3.86 (standard deviation, 1.78). Postvideo scores significantly improved regardless of age group, clinic site, primary language, education level, literacy, or access to healthcare provider (P<.0001). Change of score after watching the video was significantly greater in participants from urban areas (1.99±2.07) than in those from rural areas (1.07±1.95) (P<.0001). Multivariate analysis identified urban site as an independent factor in change of score (P=.0211).

CONCLUSION

Visual inspection with acetic acid screening for cervical cancer is feasible and accepted in northern Tanzania. Short video-based educational intervention improved baseline knowledge on the consequences of human papillomavirus infection in the studied populations. The impact was greater in the urban setting than in the rural setting.

Predictors of uptake of cervical cancer screening among women in Urban Tanzania: community-based cross-sectional study

OBJECTIVES

The proportion of women screened for cervical cancer in Tanzania remains small at 6-21%. Even though some studies have been conducted to address barriers, the screening uptake remains low, which denotes the presence of unidentified barriers. The main objective of this study is to assess the predictors in the uptake of cervical cancer screening (CCS) among women in Tanzania.

METHODS

This is a community-based cross-sectional study conducted to obtain quantitative data through validated questionnaires to assess predictors of CCS.

RESULTS

1013 (91.8%) of the respondents had not been screened for cervical cancer. Three predictors of CCS were identified in this study; screening intention, health beliefs, and knowledge level. 600 (54.4%) of respondents had no screening intention. 552 (50%) had negative health beliefs, and 585 (53%) had inadequate knowledge of cervical cancer and CCS. Respondents who had no intention to screen were 0.482 (AOR) times less likely to uptake CCS (P = 0.002; 95% CI: 0.305, 0.761).

CONCLUSIONS

The ongoing community-awareness raising campaigns should be coupled with community knowledge-raising campaign, and there should be an establishing of peer-supporting screening programs in communities.

Detection of high-risk human papillomavirus (HPV) by the novel AmpFire isothermal HPV assay among pregnant women in Pemba Island, Tanzania

Introduction

human papillomavirus (HPV) is the most common sexually transmitted virus in the world. Prevalence of infection differs, with highest rates reported in sub-Saharan African, including the country of Tanzania. In pregnancy, the hormonal changes and immune changes seem to facilitate HPV persistence, increasing the cancer risk and the risk of vertical transmission towards the placenta and the fetus. The burden of HPV infection is still high despite multiple screening and detection test available. The AmpFire® HPV assay is a novel nucleic acid isothermal amplification with real-time fluorescence detection assay that can test simultaneously 15 high-risk HPV. This nested cohort study aims to contribute evidence on the prevalence of HPV infection and persistence across two time points among pregnant women in Pemba island, Tanzania.

Methods

vaginal swabs that were previously collected during pregnancy were stored in eNAT buffer (n₁=385 and n₂=187) and were tested with AmpFire® screening assay, for simultaneous detection of the HPV 16, 18 and other high-risk HPV genotypes 31, 33, 35, 39, 45, 51, 52, 53, 56, 58, 59, 66 and 68.

Results

the AmpFire® HPV assay detected an 11% and 6% high-risk HPV prevalence at the two time points among pregnant women in Pemba island, consecutively. For the 133 women whose samples were tested at both time points, the persistence rate of high-risk HPV was 64%.

Conclusion

novel isothermal HPV assay, such as the AmpFire®, might be feasible to use in low-income regions.

Smartphone-Enhanced Training, QA, Monitoring, and Evaluation of a Platform for Secondary Prevention of Cervical Cancer: Opportunities and Challenges to Implementation in Tanzania

PURPOSE

Until human papillomavirus (HPV)-based cervical screening is more affordable and widely available, visual inspection with acetic acid (VIA) is recommended by the WHO for screening in lower-resource settings. Visual inspection will still be required to assess the cervix for women whose screening is positive for high-risk HPV. However, the quality of VIA can vary widely, and it is difficult to maintain a well-trained cadre of providers. We developed a smartphone-enhanced VIA platform (SEVIA) for real-time secure sharing of cervical images for remote supportive supervision, data monitoring, and evaluation.

METHODS

We assessed programmatic outcomes so that findings could be translated into routine care in the Tanzania National Cervical Cancer Prevention Program. We compared VIA positivity rates (for HIV-positive and HIV-negative women) before and after implementation. We collected demographic, diagnostic, treatment, and loss-to-follow-up data.

RESULTS

From July 2016 to June 2017, 10,545 women were screened using SEVIA at 24 health facilities across 5 regions of Tanzania. In the first 6 months of implementation, screening quality increased significantly from the baseline rate in the prior year, with a well-trained cadre of more than 50 health providers who "graduated" from the supportive-supervision training model. However, losses to follow-up for women referred for further evaluation or to a higher level of care were considerable.

CONCLUSION

The SEVIA platform is a feasible, quality improvement, mobile health intervention that can be integrated into a national cervical screening program. Our model demonstrates potential for scalability. As HPV screening becomes more affordable, the platform can be used for visual assessment of the cervix to determine amenability for same-day ablative therapy and/or as a secondary triage step, if needed.

Cervical cancer in low and middle-income countries

Cervical cancer is a malignant tumour that occurs in the cervix and is classified into two histological types, adenocarcinoma and squamous cell carcinoma (SCC); SCC is more common and accounts for 70% of all cases. In 2018 there were ~569,000 new cases of cervical cancer diagnosed worldwide and ~311,000 deaths were attributed to cervical cancer. Of these, between 84 and 90% occurred in low- and middle-income countries (LMICs) such as South Africa, India, China and Brazil. The most common cause of cervical cancer is persistent infection caused by the sexually transmitted human papilloma virus. Other factors that contribute to the incidence of cervical cancer include geography, traditional practices and beliefs, the screening levels, socioeconomic status, healthcare access, public awareness, use of oral contraceptives, smoking and co-infection with HIV. An estimated 11 million women from LMICs will be diagnosed with cervical cancer in the next 10-20 years. The aim of this review was to explore various types of genetic and epigenetic factors that influence the development, progression or suppression of cervical cancer.

"The best thing is that you are doing it for yourself" - perspectives on acceptability and feasibility of HPV self-sampling among cervical cancer screening clients in Tanzania: a qualitative pilot study

BACKGROUND

Cervical cancer is the most common type of cancer in sub-Saharan Africa, and it is also the cancer disease that most women die from. The high mortality rate is partly due to low attendance rates to screening services and low sensitivity of visual inspection with acetic acid, which is the standard screening method used in screening programs in sub-Saharan Africa. In order to overcome of the burden of disease new screening strategies and methods are warranted. This study aims to explore the acceptability and feasibility of HPV self-sampling compared to provider-based sampling among cervical cancer screening clients living in Dar es Salaam.

METHODS

Women attending cervical cancer screening at Ocean Road Cancer Institute in Dar es Salaam, Tanzania between February - April 2017 were invited into the study. The participants had (1) a provider-collected sample, and (2) a self-sample for HPV on top of the regular cervical cancer screening. 50% of the participants conducted the self-sample after receiving a written instruction guide of how to collect the sample (written). The other 50% received both the written and an oral introduction to self-sampling (written+). All participants could ask for nurse assistance during self-sample collection if needed. Individual semi-structured interviews were conducted with the participants post sample collection. Data collection stopped when saturation was reached. Data were analysed using a thematic content analysis.

RESULTS

Twenty-one women participated in the study. Regardless of how women were introduced to the self-sample (written or written+), there was a high demand for nurse presence as they felt uncertain of their personal capabilities to collect the self-sample correctly. However, as long as nurse assistance was an option most women perceived self-sampling as easy and comfortable though few experienced bleeding and pain. The majority of women preferred self-sampling over provider-sampling primarily due to the method being more private than the provider-sampling.

CONCLUSIONS

HPV self-sampling was well-perceived and accepted, however, for the method to be feasible a nurse needed to be present. HPV Self-sampling may be an alternative method to increase uptake of cervical cancer screening. Larger quantitative studies are recommended to support the study findings.