Feasibility and acceptability of a specialist clinical service for HIV-infected mineworkers in South Africa

Implementation strategies for infection prevention and control promotion for nurses in Sub-Saharan Africa: a systematic review

Background

Despite impressive reductions in infectious disease burden within Sub-Saharan Africa (SSA), half of the top ten causes of poor health or death in SSA are communicable illnesses. With emerging and re-emerging infections affecting the region, the possibility of healthcare-acquired infections (HAIs) being transmitted to patients and healthcare workers, especially nurses, is a critical concern. Despite infection prevention and control (IPC) evidence-based practices (EBP) to minimize the transmission of HAIs, many healthcare systems in SSA are challenged to implement them. The purpose of this review is to synthesize and critique what is known about implementation strategies to promote IPC for nurses in SSA.

Methods

The databases, PubMed, Ovid/Medline, Embase, Cochrane, and CINHAL, were searched for articles with the following criteria: English language, peer-reviewed, published between 1998 and 2018, implemented in SSA, targeted nurses, and promoted IPC EBPs. Further, 6241 search results were produced and screened for eligibility to identify implementation strategies used to promote IPC for nurses in SSA. A total of 61 articles met the inclusion criteria for the final review. The articles were evaluated using the Joanna Briggs Institute’s (JBI) quality appraisal tools. Results were reported using PRISMA guidelines.

Results

Most studies were conducted in South Africa (n = 18, 30%), within the last 18 years (n = 41, 67%), and utilized a quasi-experimental design (n = 22, 36%). Few studies (n = 14, 23%) had sample populations comprising nurses only. The majority of studies focused on administrative precautions (n = 36, 59%). The most frequent implementation strategies reported were education (n = 59, 97%), quality management (n = 39, 64%), planning (n = 33, 54%), and restructure (n = 32, 53%). Penetration and feasibility were the most common outcomes measured for both EBPs and implementation strategies used to implement the EBPs. The most common MAStARI and MMAT scores were 5 (n = 19, 31%) and 50% (n = 3, 4.9%) respectively.

Conclusions

As infectious diseases, especially emerging and re-emerging infectious diseases, continue to challenge healthcare systems in SSA, nurses, the keystones to IPC practice, need to have a better understanding of which, in what combination, and in what context implementation strategies should be best utilized to ensure their safety and that of their patients. Based on the results of this review, it is clear that implementation of IPC EBPs in SSA requires additional research from an implementation science-specific perspective to promote IPC protocols for nurses in SSA.

Opportunities for community health workers to contribute to global efforts to end tuberculosis

Tuberculosis (TB) has emerged as the leading infectious cause of death globally. New paradigms are needed to reduce TB rates and mortality. Programs harnessing the potential of community health workers (CHWs) to enhance TB prevention and care have shown great promise. In this perspective article, we review the history of CHW-based efforts to prevent and treat TB, present evidence illustrating the effectiveness of CHWs across the entire cascade of TB care, and outline additional opportunities for CHWs to address challenges particular to the TB pandemic. Despite many promising studies, knowledge gaps persist and we suggest an agenda for future research on the role of CHWs in TB prevention and care.

Acceptance of repeat worksite HIV voluntary counselling and testing in a rural South African factory

In response to the human immunodeficiency virus (HIV) pandemic, many employers in sub-Saharan Africa have introduced voluntary counselling and testing (VCT) for HIV. To assess the factors that predict repeat VCT attendance at 12-month follow-up we analysed data from a nurse-administered questionnaire that was distributed to factory workers in a rural South African factory. Employees were offered VCT for HIV in 2009 and again 12 months later. Odds ratios examined factors associated with attendance at follow-up. Totally, 2138 employees accepted VCT at initial assessment and 406 attended at follow-up. After controlling for socio-demographic factors (age, gender, marital status and education), elevated blood glucose was associated with increased likelihood of attendance at follow-up; positive HIV status was a key risk factor for non-attendance at follow-up. This study underscores the importance of determining those groups at risk of non-attendance at employer-provided repeat VCT clinics; differences between employee groups might usefully inform targeted promotional activities to encourage attendance.

Interventions to reduce risky sexual behaviour for preventing HIV infection in workers in occupational settings

BACKGROUND

The workplace provides an important avenue to prevent HIV.

OBJECTIVES

To evaluate the effect of behavioral interventions for reducing HIV on high risk sexual behavior when delivered in an occupational setting.

SEARCH METHODS

We searched the Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE and PsycINFO up until March 2011 and CINAHL, LILACS, DARE, OSH Update, and EPPI database up until October 2010.

SELECTION CRITERIA

Randomised control trials (RCTs) in occupational settings or among workers at high risk for HIV that measured HIV, sexual transmitted diseases (STD), Voluntary Counseling and Testing (VCT), or risky sexual behaviour.

DATA COLLECTION AND ANALYSIS

Two reviewers independently selected studies for inclusion, extracted data and assessed risk of bias. We pooled studies that were similar.

MAIN RESULTS

We found 8 RCTs with 11,164 participants but one study did not provide enough data. Studies compared VCT to no VCT and education to no intervention and to alternative education.VCT uptake increased to 51% when provided at the workplace compared to a voucher for VCT (RR=14.0 (95% CI 11.8 to16.7)). After VCT, self-reported STD decreased (RR = 0.10 (95% CI 0.01 to 0.73)) but HIV incidence (RR=1.4 (95% CI 0.7 to 2.7)) and unprotected sex (RR=0.71 (0.48 to 1.06)) did not decrease significantly. .Education reduced STDs (RR = 0.68 (95%CI 0.48 to 0.96)), unprotected sex (Standardised Mean Difference (SMD)= -0.17 (95% CI -0.29 to -0.05), sex with a commercial sex worker (RR = 0.88 (95% CI 0.81 to 0.96) but not multiple sexual partners (Mean Difference (MD) = -0.22 (95% CI -0.52 to 0.08) nor use of alcohol before sex (MD = -0.01 (95% CI of -0.11 to 0.08).

AUTHORS' CONCLUSIONS

Workplace interventions to prevent HIV are feasible. There is moderate quality evidence that VCT offered at the work site increases the uptake of testing. Even though this did no lower HIV-incidence, there was a decrease in self-reported sexual transmitted diseases and a decrease in risky sexual behaviour. There is low quality evidence that educational interventions decrease sexually transmitted diseases, unprotected sex and sex with commercial sex workers but not sex with multiple partners and the use of alcohol before sex.More and better randomised trials are needed directed at high risk groups such as truck drivers or workers in areas with a very high HIV prevalence such as Southern Africa. Risky sexual behaviour should be measured in a standardised way.

Cytomegalovirus viremia as a risk factor for mortality prior to antiretroviral therapy among HIV-infected gold miners in South Africa

Background

Cytomegalovirus (CMV) viremia has been shown to be an independent risk factor for increased mortality among HIV-infected individuals in the developing world. While CMV infection is nearly ubiquitous in resource-poor settings, few data are available on the role of subclinical CMV reactivation on HIV.

Methods

Using a cohort of mineworkers with stored plasma samples, we investigated the association between CMV DNA concentration and mortality prior to antiretroviral therapy availability.

Results

Among 1341 individuals (median CD4 count 345 cells/µl, 70% WHO stage 1 or 2, median follow-up 0.9 years), 70 (5.2%) had CMV viremia at baseline; 71 deaths occurred. In univariable analysis CMV viremia at baseline was associated with a three-fold increase in mortality (hazard ratio [HR] 3.37; 95% confidence intervals [CI] 1.60, 7.10). After adjustment for CD4 count, WHO stage and HIV viral load (N = 429 with complete data), the association was attenuated (HR 2.27; 95%CI 0.88, 5.83). Mortality increased with higher CMV viremia (≥1,000 copies/ml vs. no viremia, adjusted HR 3.65, 95%CI: 1.29, 10.41). Results were similar using time-updated CMV viremia.

Conclusions

High copy number, subclinical CMV viremia was an independent risk factor for mortality among male HIV-infected adults in South Africa with relatively early HIV disease. Studies to determine whether anti-CMV therapy to mitigate high copy number viremia would increase lifespan are warranted.

Evaluation of the WHO criteria for antiretroviral treatment failure among adults in South Africa

OBJECTIVE

To assess the performance of WHO clinical and CD4 cell count criteria for antiretroviral treatment (ART) failure among HIV-infected adults in a workplace HIV care programme in South Africa.

DESIGN

Cohort study.

METHODS

We included initially ART-naive participants who remained on first-line therapy and had an evaluable HIV viral load result at the 12-month visit. WHO-defined clinical and CD4 cell count criteria for ART failure were compared against a gold standard of virological failure.

RESULTS

Among 324 individuals (97.5% men, median age 40.2, median starting CD4 cell count and viral load 154 cells/mul and 47,503 copies/ml, respectively), 33 (10.2%) had definite or probable virological failure at 12 months, compared with 19 (6.0%) and 40 (12.5%) with WHO-defined CD4 and clinical failure, respectively. CD4 criteria had a sensitivity of 21.2% and a specificity of 95.8% in detecting virological failure, and clinical criteria had sensitivity of 15.2% and specificity of 88.1%. The positive predictive value of CD4 and clinical criteria in detecting virological failure were 36.8 and 12.8%, respectively. Exclusion of weight loss or tuberculosis failed to improve the performance of clinical criteria.

CONCLUSION

WHO clinical and CD4 criteria have poor sensitivity and specificity in detecting virological failure. The low specificities and positive predictive values mean that individuals with adequate virological suppression risk being incorrectly classified as having treatment failure and unnecessarily switched to second-line therapy. Virological failure should be confirmed before switching to second-line therapy.

Tuberculosis preventive therapy in the era of HIV infection: overview and research priorities

The recognition of tuberculosis (TB) as a major cause of morbidity and mortality among human immunodeficiency virus (HIV)-infected persons has led to renewed interest in TB preventive therapy and its incorporation into the essential package of health care for these individuals. Despite convincing data regarding its efficacy, TB preventive therapy has not been widely implemented. Further work is needed to determine how to overcome the barriers to the implementation of such therapy, including how best to exclude the presence of active TB before providing preventive therapy. Such issues as the optimal duration of preventive therapy for and the role of TB preventive therapy in the treatment of individuals receiving antiretroviral therapy remain to be defined. Ongoing research will help to determine how best to use this intervention in the care of HIV-infected persons and in the control of TB on a wider basis.

Evaluation of a workplace HIV treatment programme in South Africa

OBJECTIVE

To review the experience of implementing a workplace HIV care programme in South Africa and describe treatment outcomes in sequential cohorts of individuals starting antiretroviral therapy (ART).

DESIGN

A review of an industrial HIV care and treatment programme. Between October 2002 and December 2005, 2262 patients enrolled in the HIV care programme.

RESULTS

CD4 cell counts increased by a median of 90, 113 and 164 cells/microl by 6, 12 and 24 months on treatment, respectively. The viral load was suppressed below 400 copies/ml in 75, 72 and 72% of patients at 6, 12 and 24 months, respectively, at an average cost of US$1654, 3567 and 7883 per patient virally suppressed, respectively. Treatment outcomes in sequential cohorts of patients were consistent over time. A total of 93.6% of patients at 14,752 clinic visits reported missing no tablets over the previous 3 days. Almost half the patients (46.8%) experienced one or more adverse events, although most were mild (78.7%). By the end of December 2005, 30% of patients were no longer on ART, mostly because of defaulted or stopped treatment (12.8%), termination of employment (8.2%), or death (4.9%).

CONCLUSION

This large workplace programme achieved virological results among individuals retained in the programme comparable to those reported for developed countries; more work is needed to improve retention. Monitoring treatment outcomes in sequential cohorts is a useful way of monitoring programme performance. As the programme has matured, the costs of programme implementation have reduced. Counselling is a central component of an ART programme. Challenges in implementing a workplace ART programme are similar to the challenges of public-sector programmes.

Sexual and Reproductive Health Services and HIV Testing: Perspectives and Experiences of Women and Men Living with HIV and AIDS

All over the world HIV has been stigmatised, making it difficult for people living with HIV to access testing, treatment, care and counselling or even to act on a diagnosis or get advice and treatment, for fear of being judged. Prejudice in society has also often been reflected and reproduced by health care providers. A human rights approach, which positively incorporates sexual and reproductive rights, rather than a restricted medical view, is therefore essential for the achievement of true partnerships between health care providers and service users. This paper is about the experiences of HIV positive women and men in sexual and reproductive health services and HIV testing. It provides guidance not only on how things could and should be done but also on how they should not be done. It outlines the sexual and reproductive rights positive people consider crucial and gives examples of how these are being violated. It presents perceptions and implications of HIV testing and how health services can support people after a positive diagnosis. It analyses the importance of confidentiality, continuity of care, knowledge and information, and the role of support groups and home-based care. It calls on sexual and reproductive health services to address issues of stigma and discrimination when offering and carrying out HIV testing and counselling, and in providing treatment, care and support.

Establishing a workplace antiretroviral therapy programme in South Africa

Ways to expand access to antiretroviral treatment (ART) in low income settings are being sought. We describe an HIV care programme including ART in an industrial setting in South Africa. The programme uses guidelines derived from local and international best practice. The training component aims to build capacity among health care staff. Nurses and doctors are supported by experienced HIV clinicians through telephone consultation and site visits. Patients undergo a three-stage counselling procedure prior to starting ART. Drug regimens and monitoring are standardised and prophylaxis against opportunistic infections (isoniazid and cotrimoxazole) is offered routinely. Laboratory and pharmacy services, using named-patient dispensing, are centralized. The programme is designed to ensure that data on clinical and economic outcomes will be available for programme evaluation. Between November 2002-December 2004, ART delivery has been established at 70 ART workplace ART sites. The sites range from 200 to 12000 employees, and from small occupational health clinics and general practitioner rooms to larger hospital clinics. During this period, 2456 patients began ART. Of those on treatment for at least three months, 1728 (78%) have been retained on the programme and only 38 (1.7%) patients have failed the first-line ART regimen. This model for delivery of ART is feasible and successful in an industrial setting. The model may be generalizable to other employment health services in settings of high HIV prevalence, and as a model for implementing ART in other types of health-care settings.

HIV/AIDS and TB: contextual issues and policy choice in programme relationships

Tuberculosis (TB) and HIV/AIDS affect each other closely. Given the rapid spread of the HIV-driven TB epidemic worldwide, the case for establishing some form of relationship between control activities for HIV/AIDS and TB is clear. However, the question 'how' has not been resolved satisfactorily. TB and HIV/AIDS programmes have traditionally maintained their own management, supervision, funding flows and specialist boundaries. This article explores opportunities and challenges for collaboration between the two, through drawing on the expertise in organization and management, policy analysis and disease control of both TB and HIV/AIDS. Based on an extensive literature review, the article investigates how contextual issues affect the design of a collaboration; what the organizational options are; and what impact a collaboration would have. A universal model for organizational change is unlikely and changes may present as both solutions and contradictions. Careful planning and consultation are required before implementing the changes, in order to avoid jeopardizing the function and effectiveness of both disease control programmes and the health service system.

Uptake of workplace HIV counselling and testing: a cluster-randomised trial in Zimbabwe

BACKGROUND

HIV counselling and testing is a key component of both HIV care and HIV prevention, but uptake is currently low. We investigated the impact of rapid HIV testing at the workplace on uptake of voluntary counselling and testing (VCT).

METHODS AND FINDINGS

The study was a cluster-randomised trial of two VCT strategies, with business occupational health clinics as the unit of randomisation. VCT was directly offered to all employees, followed by 2 y of open access to VCT and basic HIV care. Businesses were randomised to either on-site rapid HIV testing at their occupational clinic (11 businesses) or to vouchers for off-site VCT at a chain of free-standing centres also using rapid tests (11 businesses). Baseline anonymised HIV serology was requested from all employees. HIV prevalence was 19.8% and 18.4%, respectively, at businesses randomised to on-site and off-site VCT. In total, 1,957 of 3,950 employees at clinics randomised to on-site testing had VCT (mean uptake by site 51.1%) compared to 586 of 3,532 employees taking vouchers at clinics randomised to off-site testing (mean uptake by site 19.2%). The risk ratio for on-site VCT compared to voucher uptake was 2.8 (95% confidence interval 1.8 to 3.8) after adjustment for potential confounders. Only 125 employees (mean uptake by site 4.3%) reported using their voucher, so that the true adjusted risk ratio for on-site compared to off-site VCT may have been as high as 12.5 (95% confidence interval 8.2 to 16.8).

CONCLUSIONS

High-impact VCT strategies are urgently needed to maximise HIV prevention and access to care in Africa. VCT at the workplace offers the potential for high uptake when offered on-site and linked to basic HIV care. Convenience and accessibility appear to have critical roles in the acceptability of community-based VCT.