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Dive into the research topics where Christopher J. Colvin is active.

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Featured researches published by Christopher J. Colvin.


PLOS Medicine | 2015

Using qualitative evidence in decision making for health and social interventions: an approach to assess confidence in findings from qualitative evidence syntheses (GRADE-CERQual).

Simon Lewin; Claire Glenton; Heather Munthe-Kaas; Benedicte Carlsen; Christopher J. Colvin; Metin Gülmezoglu; Jane Noyes; Andrew Booth; Ruth Garside; Arash Rashidian

Simon Lewin and colleagues present a methodology for increasing transparency and confidence in qualitative research synthesis.


PLOS ONE | 2014

A Systematic Review of Individual and Contextual Factors Affecting ART Initiation, Adherence, and Retention for HIV-Infected Pregnant and Postpartum Women

Ian Hodgson; Mary L. Plummer; Sarah N. Konopka; Christopher J. Colvin; Edna Jonas; Jennifer Albertini; Anouk Amzel; Karen P. Fogg

Background Despite progress reducing maternal mortality, HIV-related maternal deaths remain high, accounting, for example, for up to 24 percent of all pregnancy-related deaths in sub-Saharan Africa. Antiretroviral therapy (ART) is effective in improving outcomes among HIV-infected pregnant and postpartum women, yet rates of initiation, adherence, and retention remain low. This systematic literature review synthesized evidence about individual and contextual factors affecting ART use among HIV-infected pregnant and postpartum women. Methods Searches were conducted for studies addressing the population (HIV-infected pregnant and postpartum women), intervention (ART), and outcomes of interest (initiation, adherence, and retention). Quantitative and qualitative studies published in English since January 2008 were included. Individual and contextual enablers and barriers to ART use were extracted and organized thematically within a framework of individual, interpersonal, community, and structural categories. Results Thirty-four studies were included in the review. Individual-level factors included both those within and outside a woman’s awareness and control (e.g., commitment to child’s health or age). Individual-level barriers included poor understanding of HIV, ART, and prevention of mother-to-child transmission, and difficulty managing practical demands of ART. At an interpersonal level, disclosure to a spouse and spousal involvement in treatment were associated with improved initiation, adherence, and retention. Fear of negative consequences was a barrier to disclosure. At a community level, stigma was a major barrier. Key structural barriers and enablers were related to health system use and engagement, including access to services and health worker attitudes. Conclusions To be successful, programs seeking to expand access to and continued use of ART by integrating maternal health and HIV services must identify and address the relevant barriers and enablers in their own context that are described in this review. Further research on this population, including those who drop out of or never access health services, is needed to inform effective implementation.


Social Science & Medicine | 2013

Understanding careseeking for child illness in sub-Saharan Africa: A systematic review and conceptual framework based on qualitative research of household recognition and response to child diarrhoea, pneumonia and malaria

Christopher J. Colvin; Helen Smith; Alison Swartz; Jill W. Ahs; Jodie de Heer; Newton Opiyo; Julia C. Kim; Toni Marraccini; Asha George

Diarrhoea, pneumonia and malaria are the largest contributors to childhood mortality in sub-Saharan Africa. While supply side efforts to deliver effective and affordable interventions are being scaled up, ensuring timely and appropriate use by caregivers remains a challenge. This systematic review synthesises qualitative evidence on the factors that underpin household recognition and response to child diarrhoea, pneumonia and malaria in sub-Saharan Africa. For this review, we searched six electronic databases, hand searched 12 journals from 1980 to 2010 using key search terms, and solicited expert review. We identified 5104 possible studies and included 112. Study quality was appraised using the Critical Appraisal Skills Program (CASP) tool. We followed a meta-ethnographic approach to synthesise findings according to three main themes: how households understand these illnesses, how social relationships affect recognition and response, and how households act to prevent and treat these illnesses. We synthesise these findings into a conceptual model for understanding household pathways to care and decision making. Factors that influence household careseeking include: cultural beliefs and illness perceptions; perceived illness severity and efficacy of treatment; rural location, gender, household income and cost of treatment. Several studies also emphasise the importance of experimentation, previous experience with health services and habit in shaping household choices. Moving beyond well-known barriers to careseeking and linear models of pathways to care, the review suggests that treatment decision making is a dynamic process characterised by uncertainty and debate, experimentation with multiple and simultaneous treatments, and shifting interpretations of the illness and treatment options, with household decision making hinging on social negotiations with a broad variety of actors and influenced by control over financial resources. The review concludes with research recommendations for tackling remaining gaps in knowledge.


Implementation Science | 2012

Implementing nurse-initiated and managed antiretroviral treatment (NIMART) in South Africa: a qualitative process evaluation of the STRETCH trial

Daniella Georgeu; Christopher J. Colvin; Simon Lewin; Lara Fairall; Max Bachmann; Kerry Uebel; Merrick Zwarenstein; Beverly Draper; Eric D. Bateman

BackgroundTask-shifting is promoted widely as a mechanism for expanding antiretroviral treatment (ART) access. However, the evidence for nurse-initiated and managed ART (NIMART) in Africa is limited, and little is known about the key barriers and enablers to implementing NIMART programmes on a large scale. The STRETCH (Streamlining Tasks and Roles to Expand Treatment and Care for HIV) programme was a complex educational and organisational intervention implemented in the Free State Province of South Africa to enable nurses providing primary HIV/AIDS care to expand their roles and include aspects of care and treatment usually provided by physicians. STRETCH used a phased implementation approach and ART treatment guidelines tailored specifically to nurses. The effects of STRETCH on pre-ART mortality, ART provision, and the quality of HIV/ART care were evaluated through a randomised controlled trial. This study was conducted alongside the trial to develop a contextualised understanding of factors affecting the implementation of the programme.MethodsThis study was a qualitative process evaluation using in-depth interviews and focus group discussions with patients, health workers, health managers, and other key informants as well as observation in clinics. Research questions focused on perceptions of STRETCH, changes in health provider roles, attitudes and patient relationships, and impact of the implementation context on trial outcomes. Data were analysed collaboratively by the research team using thematic analysis.ResultsNIMART appears to be highly acceptable among nurses, patients, and physicians. Managers and nurses expressed confidence in their ability to deliver ART successfully. This confidence developed slowly and unevenly, through a phased and well-supported approach that guided nurses through training, re-prescription, and initiation. The research also shows that NIMART changes the working and referral relationships between health staff, demands significant training and support, and faces workload and capacity constraints, and logistical and infrastructural challenges.ConclusionsLarge-scale NIMART appears to be feasible and acceptable in the primary level public sector health services in South Africa. Successful implementation requires a comprehensive approach with: an incremental and well supported approach to implementation; clinical guidelines tailored to nurses; and significant health services reorganisation to accommodate the knock-on effects of shifts in practice.Trial registrationISRCTN46836853


Gender & Society | 2012

Men’s Perceptions of Women’s Rights and Changing Gender Relations in South Africa Lessons for Working With Men and Boys in HIV and Antiviolence Programs

Shari L. Dworkin; Christopher J. Colvin; Abbey Hatcher; Dean Peacock

Emerging out of increased attention to gender equality within violence and HIV prevention efforts in South African society has been an intensified focus on masculinities. Garnering a deeper understanding of how men respond to shifting gender relations and rights on the ground is of urgent importance, particularly since social constructions of gender are implicated in the HIV/AIDS epidemic. As social scientists collaborating on a rights-based HIV and antiviolence program, we sought to understand masculinities, rights, and gender norms across six high HIV/AIDS seroprevalence provinces in South Africa. Drawing on focus group research, we explore the ways that men who are engaged in HIV and antiviolence programming can often be simultaneously resistant to and embracing of changes in masculinities, women’s rights, and gender relations. We use our findings on men’s responses to changing gender relations to make suggestions for how to better engage men in HIV and antiviolence programs.


South African Medical Journal | 2010

Expanding access to ART in South Africa: the role of nurse-initiated treatment.

Christopher J. Colvin; Lara Fairall; Simon Lewin; Daniella Georgeu; Merrick Zwarenstein; Max Bachmann; Kerry Uebel; Eric D. Bateman

The South African government’s recent policy decision to expand access to HIV care rapidly and ‘ensure that all the health institutions in the country are ready to receive and assist patients and not just a few accredited ARV centres’ represents a dramatic and welcome about turn on years of hesitation and confusion in the country’s response to the HIV epidemic. In the first 6 years of the antiretroviral therapy (ART) programme, approximately 900 000 people have been started on treatment. In the next 2 - 3 years, the government proposes to initiate treatment in another 1.2 million people. The medical and moral imperative for providing this life-saving treatment to all who need it does not need to be defended, but the limited capacity of the public health sector to achieve this scale of increase raises serious questions about the practicality of this objective. Along with raising the CD4 thresholds for access to treatment and scrapping the antiretroviral site accreditation process, nurse initiation and management of patients on ART (NIM-ART) is under discussion at the national level as a key strategy for expanding access. There are simply not enough doctors in the public sector to introduce and follow up this number of patients. The major load from this increase will therefore have to be shifted to nurses, themselves under severe pressure and in short supply.


Culture, Health & Sexuality | 2015

The promises and limitations of gender-transformative health programming with men: critical reflections from the field

Shari L. Dworkin; Paul J. Fleming; Christopher J. Colvin

Since the 1994 International Conference on Population and Development, researchers and practitioners have engaged in a series of efforts to shift health programming with men from being gender-neutral to being more gender-sensitive and gender-transformative. Efforts in this latter category have been increasingly utilised, particularly in the last decade, and attempt to transform gender relations to be more equitable in the name of improved health outcomes for both women and men. We begin by assessing the conceptual progression of social science contributions to gender-transformative health programming with men. Next, we briefly assess the empirical evidence from gender-transformative health interventions with men. Finally, we examine some of the challenges and limitations of gender-transformative health programmes and make recommendations for future work in this thriving interdisciplinary area of study.


PLOS ONE | 2014

A Systematic Review of Health System Barriers and Enablers for Antiretroviral Therapy (ART) for HIV-Infected Pregnant and Postpartum Women

Christopher J. Colvin; Sarah N. Konopka; John Chalker; Edna Jonas; Jennifer Albertini; Anouk Amzel; Karen P. Fogg

Background Despite global progress in the fight to reduce maternal mortality, HIV-related maternal deaths remain persistently high, particularly in much of Africa. Lifelong antiretroviral therapy (ART) appears to be the most effective way to prevent these deaths, but the rates of three key outcomes—ART initiation, retention in care, and long-term ART adherence—remain low. This systematic review synthesized evidence on health systems factors affecting these outcomes in pregnant and postpartum women living with HIV. Methods Searches were conducted for studies addressing the population of interest (HIV-infected pregnant and postpartum women), the intervention of interest (ART), and the outcomes of interest (initiation, adherence, and retention). Quantitative and qualitative studies published in English since January 2008 were included. A four-stage narrative synthesis design was used to analyze findings. Review findings from 42 included studies were categorized according to five themes: 1) models of care, 2) service delivery, 3) resource constraints and governance challenges, 4) patient-health system engagement, and 5) maternal ART interventions. Results Low prioritization of maternal ART and persistent dropout along the maternal ART cascade were key findings. Service delivery barriers included poor communication and coordination among health system actors, poor clinical practices, and gaps in provider training. The few studies that assessed maternal ART interventions demonstrated the importance of multi-pronged, multi-leveled interventions. Conclusions There has been a lack of emphasis on the experiences, needs and vulnerabilities particular to HIV-infected pregnant and postpartum women. Supporting these women to successfully traverse the maternal ART cascade requires carefully designed and targeted interventions throughout the steps. Careful design of integrated service delivery models is of critical importance in this effort. Key knowledge gaps and research priorities were also identified, including definitions and indicators of adherence rates, and the importance of cumulative measures of dropout along the maternal ART cascade.


Journal of Development Studies | 2010

Grounding ‘Responsibilisation Talk’: Masculinities, Citizenship and HIV in Cape Town, South Africa

Christopher J. Colvin; Steven Robins; Joan Leavens

Abstract This paper investigates how the South African state has understood the relationship between HIV and poverty and how individuals and community-based organisations have responded to these state interventions. It considers the ways in which liberal forms of government frame people living with AIDS as a particular category of ‘deserving’ and ‘entrepreneurial’ citizens, and then re-frames them through a package of health and welfare interventions. Based on ethnographic research with the members of Khululeka, a support group for HIV-positive men, the study pays particular attention to how masculinity has shaped the ways these men have experienced and transformed these state interventions.


Reproductive Health | 2014

Conscientious objection and its impact on abortion service provision in South Africa: a qualitative study

Jane Harries; Diane Cooper; Anna Strebel; Christopher J. Colvin

BackgroundDespite abortion being legally available in South Africa after a change in legislation in 1996, barriers to accessing safe abortion services continue to exist. These barriers include provider opposition to abortion often on the grounds of religious or moral beliefs including the unregulated practice of conscientious objection. Few studies have explored how providers in South Africa make sense of, or understand, conscientious objection in terms of refusing to provide abortion care services and the consequent impact on abortion access.MethodsA qualitative approach was used which included 48 in-depth interviews with a purposively selected population of abortion related health service providers, managers and policy influentials in the Western Cape Province, South Africa. Data were analyzed using a thematic analysis approach.ResultsThe ways in which conscientious objection was interpreted and practiced, and its impact on abortion service provision was explored. In most public sector facilities there was a general lack of understanding concerning the circumstances in which health care providers were entitled to invoke their right to refuse to provide, or assist in abortion services. Providers seemed to have poor understandings of how conscientious objection was to be implemented, but were also constrained in that there were few guidelines or systems in place to guide them in the process.ConclusionsExploring the ways in which conscientious objection was interpreted and applied by differing levels of health care workers in relation to abortion provision raised multiple and contradictory issues. From providers’ accounts it was often difficult to distinguish what constituted confusion with regards to the specifics of how conscientious objection was to be implemented in terms of the Choice on Termination of Pregnancy Act, and what was refusal of abortion care based on opposition to abortion in general. In order to disentangle what is resistance to abortion provision in general, and what is conscientious objection on religious or moral grounds, clear guidelines need to be provided including what measures need to be undertaken in order to lodge one’s right to conscientious objection. This would facilitate long term contingency plans for overall abortion service provision.

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Claire Glenton

Norwegian Institute of Public Health

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Simon Lewin

South African Medical Research Council

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Simon Lewin

South African Medical Research Council

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Heather Munthe-Kaas

Norwegian Institute of Public Health

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Andrew Booth

University of Sheffield

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