COVID-19 Vaccine Coverage and Factors Associated with Vaccine Hesitancy: A Cross-Sectional Survey in the City of Kinshasa, Democratic Republic of Congo.

Vaccination against COVID-19 has been the main strategy used by most countries to limit the spread of the virus. However, vaccine uptake has been low in Africa, leading to the implementation of several interventions in order to improve vaccine coverage. This study was conducted due to the lack of information about COVID-19 vaccine coverage and the factors associated with vaccine hesitancy. This cross-sectional study was carried out in Kinshasa city using multi-stage random sampling. A total of 2160 households were included in this study. The data were analyzed using Stata 17 software. The means and standard deviations were computed for continuous data that followed a normal distribution, whereas proportions together with their 95% confidence intervals (CIs) were computed for categorical variables. The connections between dependent variables and each independent variable were tested using either Pearson's chi-square test or Fisher's exact test. The logistic regression method was employed to determine the factors that are linked to hesitation in obtaining the COVID-19 immunization. The majority of respondents were aged between 25 and 34 and 35 and 49 (28.9%). During this study, 15% (95% CI [13.25-17.9]) of respondents had received at least one dose of the COVID-19 vaccine. The prevalence of vaccine hesitancy was 67% (CI95%:64.9-69.1). Among the reasons given for refusing to be vaccinated, most respondents cited concerns about the vaccine being unsafe or causing adverse reactions (45%). Among the reasons given for accepting the vaccine, 26% thought that the vaccine prevented superinfection. The factors associated with hesitancy toward the COVID-19 vaccine were female gender, an age of less than 35 years, and living in non-slum households. Despite the interventions implemented across the country, the reluctance to be vaccinated remains a problem; this could lead to poor health outcomes, especially among the elderly and those with pre-existing conditions. It is important to step up awareness-raising campaigns in the community in order to increase the uptake of vaccination.

Knowledge regarding breast cancer among Congolese women in Kinshasa, Democratic Republic of the Congo.

INTRODUCTION: Breast cancer is the most frequent type of cancer in women and is characterized by late clinical signs in developing countries, including the Democratic Republic of the Congo. One of the main reasons of death from breast cancer is lack of awareness and screening, which has led to late diagnosis (at an advanced stage). This study aims to measure women's knowledge regarding breast cancer in Kinshasa, in the Democratic Republic of the Congo. MATERIALS AND METHODS: A cross-sectional study of 489 women aged 20-65 years was conducted. Data was collected using a predesigned, tested, self-administered questionnaire. The questionnaire included specific sections to test the participants' knowledge related to breast cancer and its screening, and practices related to breast self-examination (BSE). Bivariate and multivariate analyzes were used. RESULTS: Our results indicated that 22.09% of the participants had good breast cancer knowledge and 77.91% had poor breast cancer knowledge. Overall, 322 (65.85%) participants recognized that BSE is a valuable method for early screening of BSE. In total, 136 (27.81%) respondents had learned to do the BSE and 216 (44.17%) had reported doing it. Two hundred and ninety-two (59.71%) respondents mentioned that any woman was at risk for breast cancer and 357 (71.78%) mentioned that it was possible to prevent breast cancer. Determinants of an adequate level of knowledge were higher/university educational level (adjusted odds ratio = 2.70; 95% confidence interval: 1.27-5.73; p = .010) and having previously been screened for breast cancer (adjusted odds ratio = 2.31; 95% confidence interval: 1.40-3.83; p = .001). CONCLUSION: The majority (77.91%) of women have demonstrated poor knowledge of signs/symptoms, risk factors, and screening methods of breast cancer. Additional efforts should be made through women's healthcare workers to raise knowledge of breast cancer screening.

Immunohistochemical Features of Breast Cancer Seen in Women in Kinshasa, Democratic Republic of the Congo: A Six-Year Retrospective Study.

Introduction: The molecular classification of breast cancer (BC) based on gene expression and then protein profile has made it possible to distinguish different molecular subtypes. The objective of this study was to describe immunohistochemical features of BC infiltrating women at the Nganda Hospital Center in Kinshasa, Democratic Republic of the Congo (DRC). Methods: A retrospective study from 2014 to 2019 involved 190 patients with invasive BC who were enrolled at the Nganda Hospital Center. The tumors were analyzed histologically and classified after an immunohistochemical study into subtypes: luminal A, luminal B, HER2-overexpressed, and triple-negative. A chi-square test was performed to assess the relationship between age, histological grade, and these subtypes. Results: The luminal A subtype (44.74%) was the most common, followed by luminal B (40.53%), triple-negative (10.53%), and HER2-overexpressed (4.20%). The mean age of the patients at diagnosis was 48.27 years. Of all cases, 94.21% were ductal, 2.63% were mucinous, and 2.11% were lobular. They were classified as grade I in 68.82% of the cases, grade II in 28.42% of the cases, and grade III in 3.16% of the cases. There was a significant association between histological grade and breast cancer subtypes (p < 0.0001), but no correlation was found with age (p = 0.467). Conclusion: In our BC patients, the luminal A was predominant, while HER2-overexpressed was the least found. A strong association was noted between histological grade and molecular subtypes. These results should allow for important clinical and policy implications for BC control in the DRC.

The emergence of COVID-19 in the Democratic Republic of Congo: Community knowledge, attitudes, and practices in Kinshasa.

BACKGROUND: The first COVID-19 case in the Democratic Republic of Congo (DRC) was reported on 10 March 2020 in Kinshasa, prompting the government to promote internationally agreed non-pharmacological interventions for infection prevention and control. Public compliance to these measures is critical and depends on the knowledge, attitudes, and practices (KAP) of communities regarding COVID-19, for which there was no data. This study aimed to bridge that gap. METHODS: A community-based cross-sectional study was conducted in Kinshasa in June 2020, during the emergency state, following a four-stage sampling process. Master's students from the Kinshasa School of Public Health conducted the survey. Descriptive and regression analyses were performed. RESULTS: The study enrolled 726 women and 600 men (mean age: 43; SD 16-85). Nearly everyone heard about COVID-19 (mainly through television, radio, and street reports), but only 17% were highly knowledgeable about its transmission modes, signs and symptoms, and preventive measures. More than 80% of participants believed in the disease's seriousness; however, only 21% found the total lockdown acceptable. Nonetheless, 86% reported regular hand cleaning and mask-wearing followed by physical distancing (72%). Poorer, younger, and non-Catholic participants were overall markedly less knowledgeable and had comparatively lower levels of health-protective attitudes, acceptance, and practices. The education level and household size did not matter. Female participants tended to show fewer enabling attitudes and practices toward COVID-19 prevention measures compared to men. CONCLUSION: Adequate public health information to improve the population's KAP related to COVID-19 is critical and must be designed with and delivered to the community-considering the specific needs of diverse sub-groups and contexts. Studies in Kinshasa and similar settings are necessary to understand the barriers to and enablers of acquiring, applying, and maintaining the optimal population's KAP for COVID-19 prevention and control.

Fréquence et déterminants de l'édentement partiel des adultes dans les institutions médicodentaires de Kinshasa, en République Démocratique du Congo

Contexte et objectifs. La perte de dents appelée édentement affecte la mastication, la parole, l'esthétique, le comportement social et la qualité de vie. L'objectif de la présente étude était d'évaluer la fréquence et les determinants de l'édentement partiel (EP) chez les adultes dans les institutions médico-dentaires de Kinshasa. Méthodes. C'était étude transversale analytique conduite entre octobre 2019 et juillet 2021 dans quelques institutions médico-dentaires de Kinshasa auprès des patients adultes congolais. Les variables d'intérêts étaient la fréquence et les causes de l'EP, les facteurs sociodémographiques et la présence du diabète et/ou de l'hypertension artérielle (HTA). Les déterminants de l'EP ont été recherchés par l'analyse de régression logistique multivariée. Résultats. Quatre cent vingt sept patients ont été inclus. Leur âge moyen était de 37,9 ±15,4 ans. La fréquence de l'EP était de 71%. Seul le statut diabète et/ou hypertension a été indépendamment associé à l'EP (ORa : 23,8 ; IC 95% : 3,2-174,8). Conclusion. La fréquence de l'EP était très élevée chez les adultes, influencée par la presence du diabète et/ou HTA.

Time to Long-Acting Reversible Contraceptive Uptake Over Twelve Months Postpartum: Findings of the Yam Daabo Cluster Randomized-Controlled Trial in Burkina Faso and the Democratic Republic of the Congo.

PURPOSE: An earlier adoption of contraceptive methods during the postpartum period could help women to extend the inter-pregnancy interval. This article aimed to determine and compare the timing of long-acting reversible contraceptives (LARC) use (ie, intrauterine device and implant) in Burkina Faso (BF) and DR Congo (DRC) between the intervention and control groups. PATIENTS AND METHODS: A total of 1120 postpartum women were enrolled and followed up to 12 months postpartum. We used Yam-Daabo trial data which was a multi-intervention, single-blinded, cluster-randomised controlled trial done in primary health-care centres (clusters) in both countries. Centres were randomly allocated to receive the six-component intervention or standard antenatal and postnatal care in matched pairs (1:1). We did a secondary analysis using Royston-Parmar's semi-parametric model to estimate the effect of the interventions on the median time of LARC uptake. RESULTS: Our analysis included 567 postpartum women in BF (284 in the intervention group and 283 in the control group) and 553 in the DRC (274 in the intervention group and 279 in the control group). After showing an increase in family planning use in these two African countries, Yam Daabo's interventions showed a reduction of the median time of LARCs adoption in the intervention group compared to the control group in both countries (difference of 39 days in Burkina Faso; difference of 86 days in the DR Congo). CONCLUSION: The Yam Daabo intervention package resulted in increased and earlier adoption of LARC in rural settings in Burkina Faso and urban settings in DR Congo. Such an intervention could be relevant in similar contexts in Sub-Saharan Africa with very high fertility rates and high unmet needs for contraception.

Birth spacing and informed family planning choices after childbirth in Burkina Faso and the Democratic Republic of Congo: Participatory action research to design and evaluate a decision-making tool for providers and their clients.

OBJECTIVES: Postpartum family planning (PPFP) is essential for maternal and newborn health but is often not systematically addressed before or after childbirth. This article describes the development and field-testing of a PPFP counseling tool to support providers and women. METHODS: Participatory action research involving women, men, providers, policymakers, researchers, and contraceptive experts from Burkina Faso and the Democratic Republic of Congo. RESULTS: The tool consists of an A4-size flipchart with illustrations on the client side and clinical information and counseling tips on the provider side, and can be used during visits of the antenatal-delivery-postnatal care continuum. Qualitative results suggest that the tool is easily understandable, user-friendly, relevant, and useful with regard to providing PPFP information to clients, and respectful of clients' rights and choices. It may have a positive influence on clients' attitudes towards PPFP and their decision to use contraception. CONCLUSIONS: The tool holds promise in guiding a systematic discussion on birth spacing options among providers and clients. Its impact on contraceptive uptake requires further research. PRACTICE IMPLICATIONS: If proven effective, the tool could be disseminated to Ministries of Health and local, regional, and global partners to strengthen national family planning and maternal and child health strategies in low-resource countries.

Participatory action research to identify a package of interventions to promote postpartum family planning in Burkina Faso and the Democratic Republic of Congo.

BACKGROUND: The YAM DAABO study ("your choice" in Mooré) takes place in Burkina Faso and the Democratic Republic of Congo. It has the objective to identify a package of postpartum family planning (PPFP) interventions to strengthen primary healthcare services and determine its effectiveness on contraceptive uptake during the first year postpartum. This article presents the process of identifying the PPFP interventions and its detailed contents. METHODS: Based on participatory action research principles, we adopted an inclusive process with two complementary approaches: a bottom-up formative approach and a circular reflective approach, both of which involved a wide range of stakeholders. For the bottom-up component, we worked in each country in three formative sites and used qualitative methods to identify barriers and catalysts to PPFP uptake. The results informed the package design which occurred during the circular reflective approach - a research workshop gathering service providers, members of both country research teams, and the WHO coordination team. RESULTS: As barriers and catalysts were found to be similar in both countries and with the view to scaling up our strategy to other comparable settings, we identified a common package of six low-cost, low-technology, and easily-scalable interventions that addressed the main service delivery obstacles related to PPFP: (1) refresher training of service providers, (2) regularly scheduled and strengthened supportive supervision of service providers, (3) enhanced availability of services 7 days a week, (4) a counseling tool, (5) appointment cards for women, and (6) invitation letters for partners. CONCLUSIONS: Our research strategy assumes that postpartum contraceptive uptake can be increased by supporting providers, enhancing the availability of services, and engaging women and their partners. The package does not promote any modern contraceptive method over another but prioritizes the importance of women's right to information and choice regarding postpartum fertility options. The effectiveness of the package will be studied in the experimental phase. If found to be effective, this intervention package may be relevant to and scalable in other parts of Burkina Faso and the DRC, and possibly other Sub-Saharan countries. TRIAL REGISTRATION: Retrospectively registered in the Pan African Clinical Trials Registry ( PACTR201609001784334 , 27 September 2016).

Effectiveness of a package of postpartum family planning interventions on the uptake of contraceptive methods until twelve months postpartum in Burkina Faso and the Democratic Republic of Congo: the YAM DAABO study protocol.

BACKGROUND: Postpartum family planning (PPFP) information and services can prevent maternal and child morbidity and mortality in low-resource countries, where high unmet need for PPFP remains despite opportunities offered by routine postnatal care visits. This study aims to identify a package of PPFP interventions and determine its effectiveness on the uptake of contraceptive methods during the first year postpartum. We hypothesize that implementing a PPFP intervention package that is designed to strengthen existing antenatal and postnatal care services will result in an increase in contraceptive use. METHODS: This is an operational research project using a complex intervention design with three interacting phases. The pre-formative phase aims to map study sites to establish a sampling frame. The formative phase employs a participatory approach using qualitative methodology to identify barriers and catalysts to PPFP uptake to inform the design of a PPFP intervention package. The intervention phase applies a cluster randomized-controlled trial design based at the primary healthcare level, with the experimental group implementing the PPFP package, and the control group implementing usual care. The primary outcome is modern contraceptive method uptake at twelve months postpartum. Qualitative research is embedded in the intervention phase to understand the operational reasons for success or failure of PPFP services. DISCUSSION: Designing, testing, and scaling-up effective, affordable, and sustainable health interventions in low-resource countries is critical to address the high unmet need for PPFP. Due to socio-cultural complexities surrounding contraceptive use, this research assumes that this is more effectively accomplished by engaging key stakeholders, including adolescents, women, men, key community members, service providers, and policy-makers. At the individual level, knowledge, attitudes, and behaviors of women and couples toward PPFP will likely be influenced by a set of low-cost interventions. At the health service delivery level, the implementation of this trial will probably require a shift in behavior and accountability of providers regarding the systematic integration of PPFP into their clinical practice, as well as the optimization of health service organization to ensure the availability of competent staff and contraceptive supplies. TRIAL REGISTRATION: Retrospectively registered in the Pan African Clinical Trials Registry ( PACTR201609001784334 , 27 September 2016).

Factors associated with residual urine volume preservation in patients undergoing hemodialysis for end-stage kidney disease in Kinshasa.

BACKGROUND: Decreased residual urine volume (RUV) is associated with higher mortality in hemodialysis (HD). However, few studies have examined RUV in patients on HD in Sub-Saharan Africa. The aim of this study was to identify predictors of RUV among incident hemodialysis patients in Kinshasa. METHODS: This historical cohort study enrolled 250 patients with ESRD undergoing hemodialysis between January 2007 and July 2013 in two hemodialysis centers in Kinshasa. RUV were collected over 24 h at the initiation of HD and 6 and 12 months later during the interdialytic period. We compared the baseline characteristics of the patients according to their initial RUV (≤ 500 ml/day vs >  500 ml/day) using Student's t, Mann-Whitney U and Chi2 tests. Linear mixed-effects models were used to search for predictors of decreased RUV by adding potentially predictive baseline covariates of the evolution of RUV to the effect of time: age, sex, diabetes mellitus, hypertension, diastolic blood pressure, diuretics, angiotensin conversion enzyme inhibitors (ACEI), angiotensin receptor blockers, hypovolemia, chronic tubulointerstitial nephropathy, left ventricular hypertrophy and initial hemodialysis characteristic. A value of p < 0.05 was considered the threshold of statistical significance. RESULTS: The majority of hemodialysis patients were male (68.8%, sex ratio 2.2), with a mean age of 52.5 ± 12.3 years. The population's RUV decreased with time, but with a slight deceleration. The mean RUV values were 680 ± 537 ml/day, 558 ± 442 ml/day and 499 ± 475 ml/day, respectively, at the initiation of HD and at 6 and 12 months later. The use of ACEI at the initiation of HD (beta coefficient 219.5, p < 0.001) and the presence of chronic tubulointerstitial nephropathy (beta coefficient 291.8, p = 0.007) were significantly associated with RUV preservation over time. In contrast, the presence of left ventricular hypertrophy at the initiation of HD was significantly associated with decreased RUV over time (beta coefficient - 133.9, p = 0.029). CONCLUSIONS: Among incident hemodialysis patients, the use of ACEI, the presence of chronic tubulointerstitial nephropathy and reduced left ventricular hypertrophy are associated with greater RUV preservation in the first year of dialysis.

[Labour in women with scarred uterus in the Democratic Republic of the Congo: trial of scar and factors influencing the outcome]. / Accouchements sur utérus cicatriciel en République Démocratique du Congo: épreuve utérine et facteurs déterminants de l'issue.

OBJECTIVE: Our study aims to identify risks factors associated with failed trial of scar and to set a predictive score of labour in women with scarred uterus in the Democratic Republic of the Congo. METHODS: We conducted a multicenter cross-sectional analytic study of patients with scarred uterus in four maternity units in the Democratic Republic of the Congo (DRC) from 1 January to 31 December 2013. Logistic regression model was used to identify factors associated with failed trial of scar. We set a predictive score based on this model in order to predict trial of scar failure in maternity units in the DRC. ROC curve was used to assess the ability of the set score to identify patients at risk for trial of scar failure. The cut off point for the predictive score was determined on the basis of the Youden-index-based optimal sensitivity and specificity. All the tests in our study were carried out by using a significance threshold of α=0.05. RESULTS: Two explanatory factors in trial of scar failure were retained. They were the socio-demographic factor (maternal age) and three obstetric factors (fundal height, fetal presentation and premature rupture of membranes). Predictive score was set to predict trial of scar failure. This score was determined based on four elements: maternal age, evaluation of the gestational sac on admission, fundal height and fetal presentation. The minimum score was set at 4 and the maximum score was set at 16. The threshold value was set at 7. A total score greater than or equal to 7 reflects a risk of trial of scar failure. CONCLUSION: We set a predictive score to predict trial of scar failure. This score was determined based on four elements: maternal age, evaluation of the gestational sac on admission, fundal height and fetal presentation. A total score greater than or equal to 7 reflects a risk of trial of scar failure.

Impact of residual urine volume decline on the survival of chronic hemodialysis patients in Kinshasa.

BACKGROUND: Despite the multiple benefits of maintaining residual urine volume (RUV) in hemodialysis (HD), there is limited data from Sub-Saharan Africa. The aim of this study was to assess the impact of RUV decline on the survival of HD patients. METHODS: In a retrospective cohort study, 250 consecutive chronic HD patients (mean age 52.5 years; 68.8% male, median HD duration 6 months) from two hospitals in the city of Kinshasa were studied, between January 2007 and July 2013. The primary outcome was lost RUV. Preserved or lost RUV was defined as decline RUV < 25 (median decline) or ≥ 25 ml/day/month, respectively. The second endpoint was survival (time-to death). Survival curves were built using the Kaplan-Meier methods. We used Log-rank test to compare survival curves. Predictors of mortality were assessed by Cox proportional hazards regression models. RESULTS: The cumulative incidence of patients with RUV decline was 52, 4%. The median (IQR) decline in RUV was 25 (20.8-33.3) ml/day/month in the population studied, 56.7 (43.3-116.7) in patients deceased versus 12.9 (8.3-16.7) in survivor patients (p < 0.001). Overall mortality was 78 per 1000 patient years (17 per 1000 in preserved vs 61 per 1000 lost RUV). Forty six patients (18.4%) died from withdrawal of HD due to financial constraints. The Median survival was 17 months in the whole group while, a significant difference was shown between lost (10 months, n = 119) vs preserved RUV group (30 months, n = 131; p = 0001). Multivariate Cox proportional hazards models showed that, decreased RUV (adjusted HR 5.35, 95% CI [2.73-10.51], p < 0.001), financial status (aHR 2.23, [1.11-4.46], p = 0.024), hypervolemia (a HR 2.00, [1.17-3.40], p = 0.011), lacking ACEI (aHR 2.48, [1.40-4.40], p = 0.002) or beta blocker use (aHR 4.04, [1.42-11.54], p = 0.009), central venous catheter (aHR 6.26, [1.71-22.95], p = 0.006), serum albumin (aHR 0.93, [0.89-0.96], p < 0.001) and hemoglobin (aHR 0.73, [0.63-0.84], p < 0.001) had emerged as the independent predictors of all-cause mortality. CONCLUSION: More than half of HD patients in this cohort study experienced fast RUV decline which contributed substantially to increase mortality, highlighting the need for its prevention and management.

[Predictors of physical incapacity degree to chronic hemodialysis patients in Kinshasa : Key role of the residual diuresis]. / Prédicteurs du degré d'incapacité physique chez les hémodialysés de Kinshasa : rôle primordial de la diurèse résiduelle.

OBJECTIVE: Identifying predictors of physical incapacity degree in patients on chronic hemodialysis in Kinshasa. METHODS: Bicentric analytical study, between January 2007 and July 2013. Degree of physical handicap was evaluated at 6months of hemodialysis based on the scale of Rosser. Logistic regression sought the predictors of no or light physical incapacity (Rosser<3) vs. moderate to maximum (Rosser≥3). P was set at 0.05. RESULTS: One hundred twenty-seven patients (127) patients received at least 6months of hemodialysis (53.3±11years; 73.2 % male), 79 (62.2 %) had no or light incapacity and 48 (37.8 %) moderate to maximum. Predictors of lower physical incapacity in univaried analysis were: secured funding, high socioeconomic level, lack of diabetes mellitus, high body weight, normal systolic and diastolic blood pressure, residual diuresis 3months later, hemoglobin and hematocrit, low comorbidity, arteriovenous fistula, erythropoietin, at least 12hours of hemodialysis per week and lack of intradialytic complications. After logistic regression, a high residual diuresis 3months of hemodialysis has proved an independent predictor of lower physical Incapacity (aOR 0.998; P=0.024) next to the lack of diabetes mellitus (aOR 0.239; P=0.024), good control of systolic (aOR 0.958; P=0.013) and diastolic (aOR 1.089; P=0.003) blood pressure and the use of erythropoietin (aOR 5.687; P=0.004). CONCLUSION: Preserving residual diuresis is associated with lower physical incapacity and must be integrated in the management in hemodialysis.