Secondary prevention of cervical cancer by screen-and-treat approach among HIV negative women in Faith Alive Hospital, Jos Nigeria

Background: Cervical cancer is the second most common cancer among women in Nigeria and the leading cause of cancer-related death in sub-Saharan Africa.  In low-income settings, visual inspections with acetic acid (VIA) and Lugol’s iodine (VILI); and subsequent treatment of cervical precancerous lesions with thermal ablation remains the practical approach for secondary prevention. Objectives were to determine prevalence of pre-cancerous cervical lesions, prevalence of suspected cervical cancer, and associated risk factors. Methods: A retrospective study on sexually active HIV negative women aged 16-55 years screened for cervical cancer using VIA/VILI within 16 months period in Faith Alive Hospital Jos.  Data were analyzed using IBM-SPSS 26. Socio-demographic characteristics and screening results were presented in frequency tables; and logistic regression was performed to determine risk factors for cervical pre-cancerous lesions. Results: 1,073 HIV negative women were screened for cervical cancer using VIA/VILI. 82 (7.6%) tested positive, 30 (2.8%) had suspected cancer with modal age distribution of 36-45 years. Higher positivity yield (58.6%) was found in ages between 36 and ≥55 years while the less positivity yield (41.4%) was found ages ≤35 years. Parity ≥3 had 1.8 fold risk association with precancerous lesion. Conclusions: Our study revealed high prevalence of cervical pre-cancerous lesions among HIV negative women, modal age distribution for suspected cancer and parity ≥3 being significant risk factor. Thus, “screen-and-treat” approach to cervical cancer prevention by VIA/VILI and thermal ablation in resource constraint settings should be undertaken until widespread HPV testing to triage clients is possible

Cost effectiveness of human papilloma virus vaccination in low and middle income countries: a systematic review of literature

Introduction: Low and middle income countries (LMICs) bear more than 50% of the current cervical cancer burden over the last decade with linkages to lack of HPV vaccination, high levels of poverty, illiteracy and nonexistent or poor screening programs. Governments of LMICs need enough convincing evidence that HPV vaccination will be more cost-effective in reducing the scourge of cervical cancer. Area covered: A systematic review to identify suitable studies from MEDLINE(via PubMed), EMBASE and Electronic search through GOOGLE for original and review articles from 2007 to 2014 on cost-effectiveness of human papilloma virus vaccination of pre-adolescent girls in LMICs was conducted. A total of 19 full articles were finally selected and reviewed after screening out those not consistent with the inclusion and exclusion criteria. Expert commentary: Most studies on cost-effectiveness of HPV vaccine in LMICs show that lowering cost of HPV vaccination with or without Pap smear screening is cost-effective in areas with high incidence of cervical cancer

Incident Kaposi sarcoma during the expansion of antiretroviral therapy eligibility in Nigeria: a retrospective cohort study

Abstract Introduction The expansion of antiretroviral therapy (ART) eligibility could lead to earlier initiation of Human Immunodeficiency Virus (HIV) treatment and consequently reduce the risk of HIV-associated Kaposi Sarcoma (KS). We investigated the impact of changes in the Nigerian HIV treatment guidelines on KS incidence among adults enrolled in HIV care in Nigeria. Methods We analyzed data of adults who enrolled for HIV care from January 2006 to December 2016 at one of Nigeria’s largest HIV treatment centers. Based on changes in HIV treatment guidelines, we classified 2006–2009 as the pre-expansion period and 2010–2016 as the post-expansion period. We used Kaplan Meier curves to compare the incidence of KS in the pre-expansion to the post-expansion period. We used Cox regression models to assess the hazard for incident KS between the two periods after adjusting for potential confounders. Results Among 14,479 patients with HIV, the overall KS incidence was 2.35; 95% CI 2.01–2.74/1,000 person-years. The incidence of KS decreased from 2.53 to 1.58 per 1,000 person-years from 2006 to 2009 to 2010–2016. In models adjusting for age, sex, CD4-T cell count, and ART use, the risk for KS remained lower in 2010–2016 compared to 2006–2009. In analyses restricted to time on ART, there was no significant difference in KS incidence between HIV patients who enrolled in 2006–2009 and 2010–2016 after adjusting for age, sex, and CD4 T-cell count. Conclusion The expansion of ART eligibility was associated with a reduced incidence of HIV-associated KS among adults initiating HIV care in Jos, Nigeria. The reduction was likely driven by earlier enrollment for HIV care and ART initiation

Incidence and predictors of adverse drug events in an African cohort of HIV-infected adults treated with efavirenz

INTRODUCTION: Adverse drug reactions associated with efavirenz (EFV) therapy are poorly described beyond the first year of treatment. We aimed to describe the incidence and predictors of EFV-related adverse drug reactions (ADRs) in a cohort of adult Nigerian HIV-infected patients on antiretroviral therapy (ART). METHODS: This retrospective cohort study utilized clinical data of HIV-1 infected adults (aged ≥15 years), commenced on efavirenz containing-regimen between January 2004 and December 2011. The time-dependent occurrence of clinical adverse events as defined by the World Health Organization was analyzed by Cox regression analysis. RESULTS: A total of 2920 patients with baseline median (IQR) age of 39 (33-46) years, largely made up of men (78%) were included in the study. During 8834 person-years of follow up, 358 adverse drug events were reported; the incidence rate was 40.3 ADRs per 1000 person-years of treatment. Lipodystrophy and neuropsychiatric disorders were the most common ADRs with incidences of 63 and 30 per 1000 patients respectively. About one-third of the neuropsychiatric adverse events were within 12 months of commencement of ART. The risk of neuropsychiatric ADRs was independently predicted for women [adjusted hazard ratio (aHR) 9.05; 95% CI: 5.18-15.82], those aged <40 years (aHR 2.59; 95% CI: 1.50-4.45), advanced HIV disease (WHO stage 3 or 4) [aHR 2.26; 95% CI: 1.37-3.72], and zidovudine [aHR 2.21; 95% CI: 1.27-3.83] or stavudine [aHR 4.22; 95% CI: 1.99-8.92] containing regimen compared to tenofovir. CONCLUSION: Neuropsychiatric adverse drug events associated with efavirenz-based ART had both early and late onset in our clinical cohort of patients on chronic EFV therapy. Continuous neuropsychiatric assessment for improved detection and management of neuropsychiatric ADRs is recommended in resource-limited settings where the use of efavirenz-based regimens has been scaled up

Outcome of HIV-associated lymphoma in a resource-limited setting of Jos, Nigeria

Abstract Background Lymphoma is a leading cause of cancer-related death among human immunodeficiency virus (HIV)-infected individuals in the current era of potent anti-retroviral therapy (ART). Globally, mortality after HIV-associated lymphoma has profound regional variation. Little is known about HIV-associated lymphoma mortality in Nigeria and other resource-limited setting in sub-Saharan Africa. Therefore, we evaluated the all-cause mortality after lymphoma and associated risk factors including HIV at the Jos University Teaching Hospital (JUTH) Nigeria. Methods We conducted a ten-year retrospective cohort study of lymphoma patients managed in JUTH. The main outcome measured was all-cause mortality and HIV infection was the main exposure variable. Overall death rate was estimated using the total number of death events and cumulative follow up time from lymphoma diagnosis to death. Cox proportional hazard regression was used to assess factors associated with mortality after lymphoma diagnosis. Results Out of 40 lymphoma patients evaluated, 8(20.0%) were HIV positive and 32(80.0%) were HIV negative. After 127.63 person- years of follow-up, there were 16 deaths leading to a crude mortality rate of 40.0 per 100 person-years. The 2-year probability of survival was 30% for HIV-infected patients and 74% for HIV-uninfected. Median survival probability for HIV-infected patients was 2.1 years and 7.6 years for those without HIV. Unadjusted hazard of death was associated with late stage, HR 11.33(95% CI 2.55, 50.26,p = 0.001); low cumulative cycles of chemotherapy, HR 6.43(95% CI 1.80, 22.89,p = 0.004); greater age, HR 5.12(95% CI 1.45,18.08,p = 0.01); presence of comorbidity, HR 3.43(95% CI 1.10,10.78,p = 0.03); and HIV-infection, HR 3.32(95% CI 1.05, 10.51,p = 0.04). In an adjusted model only stage was significantly associated with death, AHR 5.45(1.14–26.06, p = 0.03). Conclusion Our findings suggest that HIV- infection accounted for three times probability of death in lymphoma patients compared to their HIV-uninfected counterparts due to late stage of lymphoma presentation in this population. Also initiation of chemotherapy was associated with lower probability of death among lymphoma patients managed at JUTH, Nigeria. Earlier stage at lymphoma diagnosis and prompt therapeutic intervention is likely to improve survival in these patients. Future research should undertake collaborative studies to obtain comprehensive regional data and identify unique risk factors of poor outcomes among HIV-infected patients with lymphoma in Nigeria

Additional file 1 of Incident Kaposi sarcoma during the expansion of antiretroviral therapy eligibility in Nigeria: a retrospective cohort study

Additional file 1: Table S1. Characteristics of adults who initiated ART in Jos, Nigeria (2006-2018). Figure S1. Box plot of time from enrollment in care to initiation of antiretroviral therapy in adults with HIV in Jos, Nigeria (2006-2016). Table S2. Cox regression of predictors of Kaposi Sarcoma using Multiply Imputed Data from adults with HIV in Jos, Nigeria (2006-2016) (n=14,479, events=160). Table S3. Missing Data Pattern. Table S4. MICE model and corresponding populations and variables. Figure S2. MICE Mode A (Analytical Models 1 to 3). Figure S3. MICE Model B (Analytical Model 4) and MICE Model C (Analytical Model 5). Figure S4. MICE Model D (Analytical Model 6). Table S5. Cox Regression models of predictors of Kaposi Sarcoma among adults with HIV in Jos Nigeria (2006-2016). Table S6. Multivariate cox regression models of predictors of Kaposi Sarcoma among adults with HIV in Jos, Nigeria based on use of antiretroviral therapy (2006-2016