Ken Ondenge
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Author Swipe
Assessing Vaccine Confidence Using the Vaccine Hesitancy Scale Among Adolescent Girls and Young Women at Risk of HIV Acquisition Living in Uganda, Zambia, and South Africa Open
Background: Vaccine hesitancy (VH) remains a major threat to global health that can reverse the progress in tackling vaccine-preventable diseases. Vaccine uptake among adolescent Girls and young women (AGYW) is often low. We assessed VH us…
View article: Routine immunisation coverage in the context of seasonal influenza vaccine introduction for children in Nakuru and Mombasa counties in Kenya, 2019–21: an observational study
Routine immunisation coverage in the context of seasonal influenza vaccine introduction for children in Nakuru and Mombasa counties in Kenya, 2019–21: an observational study Open
The Task Force for Global Health and The Centers for Disease Control and Prevention.
Longitudinal Effects of a Smartphone Game (Tumaini) to Prevent HIV among Young Africans: 45-Month Trajectories of Proximal Outcomes related to Condom Use in a Randomized Controlled Trial (Preprint) Open
BACKGROUND African adolescents and young adults account for a disproportionate number of new HIV infections. There is an urgent need to identify scalable and cost-effective behavioral HIV prevention strategies for this population. Using a …
Assessing Vaccine Confidence using the Vaccine Hesitancy Scale among Adolescent Girls and Young Women at risk of HIV acquisition living in Uganda, Zambia, and South Africa Open
Background: Vaccine hesitancy (VH) remains a major threat to global health and can reverse the progress in tackling vaccine-preventable diseases. Vaccine uptake among adolescents and young women (AGYW) is often low. We assessed VH using a …
The Vaccine Trust Framework: mixed-method development of a tool for understanding and quantifying trust in health systems and vaccines Open
For the Urdu, Swahili and French translations of the abstract see Supplementary Materials section.
Sexual behaviour among Kenyan adolescents enrolled in an efficacy trial of a smartphone game to prevent HIV: a cross-sectional analysis of baseline data Open
Sexual behaviour of adolescents is contextual, with various determinants affecting sexual activity and age of sexual debut. Insight into sexual activity among young adolescents has the potential to influence appropriate sexual and reproduc…
Factors influencing repeat HIV testing among mothers in perinatal clinics of rural and urban settings in Kisumu County, Kenya Open
Background : Over one million children are living with Human Immunodeficiency Virus (HIV), predominantly acquired from their mothers during the perinatal period. Most infections are in the developing world with over 90% of children with HI…
View article: Qualitative perspectives on COVID-19, interpersonal violence, and interventions to improve well-being from adolescent girls and young women in Kisumu, Kenya
Qualitative perspectives on COVID-19, interpersonal violence, and interventions to improve well-being from adolescent girls and young women in Kisumu, Kenya Open
Introduction Adolescent girls and young women (AGYW) face a high burden of gender-based violence (GBV) worldwide. The COVID-19 pandemic and associated policies led to global increases in GBV, decreased access to resources, and disruptions …
View article: Understanding ART Adherence among Adolescent Girls and Young Women in Western Kenya: A Cross-Sectional Study of Barriers and Facilitators
Understanding ART Adherence among Adolescent Girls and Young Women in Western Kenya: A Cross-Sectional Study of Barriers and Facilitators Open
Background: HIV remains a leading cause of death for adolescent girls and young women (AGYW) in sub-Saharan Africa. This population has a high incidence of HIV and other comorbidities, such as experiencing violence, and low antiretroviral …
‘You are not alone’ - The role of social relationships in engagement in care for adolescents living with perinatally acquired HIV in Western Kenya Open
This manuscript examines how social relationships influence engagement in care of adolescents with perinatally acquired HIV (APHIV) in Western Kenya, with the aim of informing efforts to improve APHIV outcomes. Interview and focus group tr…
Determinants of COVID-19 Vaccine Acceptability among Healthcare Workers in Kenya—A Mixed Methods Analysis Open
Healthcare workers (HCWs) were a priority group for COVID-19 vaccination. Adopting the World Health Organization’s 3C and the expanded 5C vaccine hesitancy models, we assessed the factors associated with COVID-19 vaccine acceptability amon…
Traditional Medicine Beliefs and Practices among Caregivers of Children under Five Years—The Child Health and Mortality Prevention Surveillance (CHAMPS), Western Kenya: A qualitative study Open
Background Approximately 80% of the population residing in sub-Saharan Africa relies on Traditional Medicine (TM). However, literature on factors motivating the use of TM for children under the age of five in these settings is limited. Suc…
Genital microbiota of women using a 90 day tenofovir or tenofovir and levonorgestrel intravaginal ring in a placebo controlled randomized safety trial in Kenya Open
In a phase-IIa trial, we investigated the influence of 90 days continuous-delivery tenofovir (TFV) intravaginal rings (IVRs) with/without levonorgestrel (LNG) on the genital microbiota of Kenyan women. Eligible women (n = 27; 18–34 years; …
The Efficacy of a Smartphone Game to Prevent HIV Among Young Africans: Protocol for a Randomized Controlled Trial in the Context of COVID-19 Open
Background Adolescents contribute slightly less than one-third of all new HIV infections in sub-Saharan Africa. There is a need for more effective intervention approaches to help young adolescents safely navigate through adolescence and in…
The Efficacy of a Smartphone Game to Prevent HIV Among Young Africans: Protocol for a Randomized Controlled Trial in the Context of COVID-19 (Preprint) Open
BACKGROUND Adolescents contribute slightly less than one-third of all new HIV infections in sub-Saharan Africa. There is a need for more effective intervention approaches to help young adolescents safely navigate through adolescence and in…
A smartphone game to prevent HIV among young Kenyans: local perceptions of mechanisms of effect Open
Electronic games delivered via smartphones have the potential to become valuable tools in HIV prevention in high-prevalence and low-resource international settings. To ground theoretical elaboration around novel mHealth interventions in co…
A Smartphone Game to Prevent HIV Among Young Africans (Tumaini): Assessing Intervention and Study Acceptability Among Adolescents and Their Parents in a Randomized Controlled Trial Open
ClinicalTrials.gov NCT03054051; https://clinicaltrials.gov/ct2/show/NCT03054051 (Archived by WebCite at http://www.webcitation.org/70U2gCNtW).
A Smartphone Game to Prevent HIV Among Young Africans: Protocol for a Randomized Pilot Study of a Mobile Intervention Open
DERR1-10.2196/11209.
A smartphone game to prevent HIV among young Kenyans: Household dynamics of gameplay in a feasibility study Open
Objective: mHealth interventions often favour individual-level effects. This is particularly problematic in contexts where social support and shifts in social norms are critical to sustained behaviour change. Mobile digital games represent…
A Smartphone Game to Prevent HIV Among Young Africans: Protocol for a Randomized Pilot Study of a Mobile Intervention (Preprint) Open
BACKGROUND Young people aged under 25 years make up an increasing proportion of the population in emerging economies such as Kenya, where half of new adult HIV infections are among 15- to 24-year olds. Interventions targeting this age grou…
Participant satisfaction with clinical trial experience and post-trial transitioning to HIV care in Kenya Open
We conducted an exploratory analysis of former HIV Prevention Trials Network 052 (HPTN 052) clinical trial participants in 2016 to assess their (1) satisfaction with the HPTN 052 clinical trial care and treatment, and reasons for joining t…
Factors associated with psychological distress among members of HIV discordant couples in western Kenya: the role of adverse childhood experiences Open
# Background The relationship between measures of psychological distress and factors such as adverse childhood experiences (ACE) and HIV infection have not been well studied among members of HIV discordant couples living in Kenya. # Method…
Factors associated with psychological distress among members of HIV discordant couples in western Kenya: the role of adverse childhood experiences Open
# Background The relationship between measures of psychological distress and factors such as adverse childhood experiences (ACE) and HIV infection have not been well studied among members of HIV discordant couples living in Kenya. # Method…
A Smartphone Game-Based Intervention (Tumaini) to Prevent HIV Among Young Africans: Pilot Randomized Controlled Trial Open
ClinicalTrials.gov NCT03054051; http://clinicaltrials.gov/ct2/show/NCT03054051 (Archived by WebCite at http://www.webcitation.org/70U2gCNtW).
A Smartphone Game-Based Intervention (Tumaini) to Prevent HIV Among Young Africans: Pilot Randomized Controlled Trial (Preprint) Open
BACKGROUND There is a pressing need to ensure that youth in high HIV prevalence settings are prepared for a safer sexual debut. Smartphone ownership is increasing dramatically in low-income and middle-income countries. Smartphone games tha…
HIV testing experiences and their implications for patient engagement with HIV care and treatment on the eve of ‘test and treat’: findings from a multicountry qualitative study Open
The principles of consent and confidentiality that should underlie HIV testing and counselling practices may be modified or omitted by health workers to achieve perceived public health benefits and policy expectations. While such actions c…
‘I am treated well if I adhere to my HIV medication’: putting patient–provider interactions in context through insights from qualitative research in five sub-Saharan African countries Open
Patient-provider interaction is complex, multidimensional and deeply embedded in wider social dynamics. Multiple contextual domains shape patient-provider interactions in the context of HIV in sub-Saharan Africa. Interventions to improve p…
Contraceptive vaginal ring experiences among women and men in Kisumu, Kenya: A qualitative study Open
Awareness of the multiple contexts in ring users' experience may inform the development, education, and promotion approaches for future ARV rings.