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Elvis Omondi Achach Wambiya

Biographic Data

ID3572906
NAMEElvis Omondi Achach Wambiya
GIVEN NAMESElvis Omondi Achach
FAMILY NAMEWambiya
SIGNATUREWAMBIYA E O A
AFFILIATIONSAfrican Population and Health Research Center
ORCID0000-0002-4149-3417
VERIFIEDYes
TOTAL WORKS11
TOTAL CITATIONS1
AUTHOR COUNT11
EDITOR COUNT0
FIRST PUBLICATION YEAR2020
LATEST PUBLICATION YEAR2026
H-INDEX1
  • Application of Decision-Analytic Models to Evaluate Integrated Care Interventions for Cardiometabolic Multimorbidity

    Open Access•Elvis Omondi Achach Wambiya, Duncan Gillespie et al.•ARTICLE•International Journal of…•2026

    Introduction: Integrated care is increasingly adopted to address the needs of patients with multimorbidity, but cost-effective configuration of integrated healthcare pathways remains unclear. This study reviewed decision analytic models (DAMs) used in economic evaluations of integrated care interventions for cardiometabolic multimorbidity. Methods: A systematic search of eight electronic databases was conducted to identify peer-reviewed articles …

  • Stakeholders perspectives on the barriers and facilitators for implementing integrated primary care for cardiometabolic disease prevention and management in Kenya

    Open Access•Elvis Omondi Achach Wambiya, James Odhiambo Oguta et al.•ARTICLE•International Journal of…•2026

    Background: Integrated care is increasingly recognised as a key strategy for the management of multimorbidity. However, evidence on the factors associated with the implementation of integrated care models in low- and middle-income countries (LMICs) remains limited. We explored stakeholders' perceptions on existing challenges and recommendations for implementing integrated care at primary health care (PHC) level to tackle cardiometabolic multimorb…

  • Stakeholder perspectives on the barriers and facilitators to integrating cardiovascular disease and diabetes management at primary care in Kenya

    Open Access•Elvis Omondi Achach Wambiya, James Odhiambo Oguta et al.•ARTICLE•PLOS Global Public Health•2025

    Integrated care is increasingly recognised as a key strategy for the management of multimorbidity. However, evidence on the factors associated with the implementation of integrated care models in low- and middle-income countries remains limited. We explored how stakeholders perceived integrated care, existing challenges, and recommendations for integrating cardiovascular disease and diabetes management at primary health care (PHC) level in Kenya.…

  • What combination of interventions can optimise HIV prevention for adolescent girls and young women? Cohort analysis of DREAMS participation in urban and rural Kenya

    Open Access•Faith Magut, Sarah Mulwa et al.•ARTICLE•PLOS Global Public Health•2025

    Comprehensive intervention packages are recommended to address multiple sources of HIV risk for adolescent girls and young women (AGYW). DREAMS is a multi-component HIV prevention program designed to reduce HIV incidence among AGYW. We conducted a prospective cohort study among AGYW aged 13–22 years, randomly selected in rural Gem and urban Nairobi informal settlements followed from 2017/2018–2019. AGYW were classified into three groups: (1) invi…

  • Impact of DREAMS interventions on experiences of violence among adolescent girls and young women

    Open Access•Elvis Omondi Achach Wambiya, Annabelle Gourlay et al.•ARTICLE•PLOS Global Public Health•2023

    DREAMS aims to reduce HIV incidence among adolescent girls and young women (AGYW) by tackling drivers of HIV risk including gender-based violence. We evaluate the impact of DREAMS on recent experiences of violence perpetuated by men against AGYW. AGYW cohorts were randomly selected from demographic platforms in South Africa (rural KwaZulu-Natal) and Kenya (Nairobi informal settlements and rural Gem sub-county). AGYW aged 13–22 years were enrolled…

  • The challenges of implementing antibiotic stewardship in diverse poultry value chains in Kenya

    Open Access•Alex Hughes, Emma J Roe et al.•ARTICLE•Agriculture and Human Values•2023•Cited by: 1•References: 7

    This paper investigates the challenges of implementing antibiotic stewardship – reducing and optimizing the use of antibiotics – in agricultural settings of Low- and Middle-Income Countries (LMICs) as a strategic part of addressing the global problem of antimicrobial resistance (AMR). It does so through analysis of the rapidly transforming yet diverse Kenyan poultry sector, characterized by growing commercial operations alongside traditional smal…

  • Impact of the DREAMS Partnership on social support and general self-efficacy among adolescent girls and young women

    Open Access•Annabelle Gourlay, Sian Floyd et al.•ARTICLE•BMJ Global Health•2022

    INTRODUCTION: The Determined, Resilient, Empowered, AIDS-free, Mentored and Safe (DREAMS) Partnership aimed to influence psychosocial processes that promote empowerment among adolescent girls and young women (AGYW), and reduce HIV incidence. We estimated the impact of DREAMS on aspects of AGYW's collective and individual agency (specifically, social support and self-efficacy), in three settings where DREAMS was implemented from 2016 until at leas…

  • Reaching early adolescents with a complex intervention for HIV prevention

    Open Access•Sarah Mulwa, Jane Osindo et al.•ARTICLE•BMC Public Health•2021

    Uptake of DREAMS interventions among a representative sample of EAG was high and quickly increased over the implementation period. The majority accessed multiple interventions, indicating that it is feasible to integrate and deliver a package of interventions to EAG in a challenging informal context

  • Patterns and predictors of private and public health care utilization among residents of an informal settlement in Nairobi, Kenya

    Open Access•Elvis Omondi Achach Wambiya, Peter Otieno et al.•ARTICLE•BMC Public Health•2021

    The majority of urban informal settlement dwellers seek care from private health facilities. As Kenya commits to achieving universal health coverage, interventions that improve health care access in informal and low-resource settlements are needed and should be modelled around enabling and need factors, particularly health care financing and quality of health care

  • Access to primary healthcare services and associated factors in urban slums in Nairobi-Kenya

    Open Access•Peter Otieno, Elvis Omondi Achach Wambiya et al.•ARTICLE•BMC Public Health•2020

    In Nairobi slums in Kenya, living in a female-headed household, seeking care from a public facility, and paying out-of-pocket for healthcare are significantly associated with low access to primary care. Therefore, the design of the UHC program in this setting should prioritize quality improvement in public health facilities and focus on policies that encourage economic empowerment of female-headed households to improve access to primary healthcar…

  • Economic valuation of setting up a social health enterprise in urban poor-resource setting in Kenya

    Open Access•Hermann Pythagore Pierre Donfouet, Shukri F Mohamed et al.•ARTICLE•Social Science & Medicine•2020•References: 69

  • The challenges of implementing antibiotic stewardship in diverse poultry value chains in Kenya

    Open Access•Alex Hughes, Emma J Roe et al.•ARTICLE•Agriculture and Human Values•2023•Cited by: 1•References: 7

    This paper investigates the challenges of implementing antibiotic stewardship – reducing and optimizing the use of antibiotics – in agricultural settings of Low- and Middle-Income Countries (LMICs) as a strategic part of addressing the global problem of antimicrobial resistance (AMR). It does so through analysis of the rapidly transforming yet diverse Kenyan poultry sector, characterized by growing commercial operations alongside traditional smal…

  • Access to primary healthcare services and associated factors in urban slums in Nairobi-Kenya

    Open Access•Peter Otieno, Elvis Omondi Achach Wambiya et al.•ARTICLE•BMC Public Health•2020

    In Nairobi slums in Kenya, living in a female-headed household, seeking care from a public facility, and paying out-of-pocket for healthcare are significantly associated with low access to primary care. Therefore, the design of the UHC program in this setting should prioritize quality improvement in public health facilities and focus on policies that encourage economic empowerment of female-headed households to improve access to primary healthcar…

  • Economic valuation of setting up a social health enterprise in urban poor-resource setting in Kenya

    Open Access•Hermann Pythagore Pierre Donfouet, Shukri F Mohamed et al.•ARTICLE•Social Science & Medicine•2020•References: 69

  • Reaching early adolescents with a complex intervention for HIV prevention

    Open Access•Sarah Mulwa, Jane Osindo et al.•ARTICLE•BMC Public Health•2021

    Uptake of DREAMS interventions among a representative sample of EAG was high and quickly increased over the implementation period. The majority accessed multiple interventions, indicating that it is feasible to integrate and deliver a package of interventions to EAG in a challenging informal context

  • Patterns and predictors of private and public health care utilization among residents of an informal settlement in Nairobi, Kenya

    Open Access•Elvis Omondi Achach Wambiya, Peter Otieno et al.•ARTICLE•BMC Public Health•2021

    The majority of urban informal settlement dwellers seek care from private health facilities. As Kenya commits to achieving universal health coverage, interventions that improve health care access in informal and low-resource settlements are needed and should be modelled around enabling and need factors, particularly health care financing and quality of health care

  • Impact of the DREAMS Partnership on social support and general self-efficacy among adolescent girls and young women

    Open Access•Annabelle Gourlay, Sian Floyd et al.•ARTICLE•BMJ Global Health•2022

    INTRODUCTION: The Determined, Resilient, Empowered, AIDS-free, Mentored and Safe (DREAMS) Partnership aimed to influence psychosocial processes that promote empowerment among adolescent girls and young women (AGYW), and reduce HIV incidence. We estimated the impact of DREAMS on aspects of AGYW's collective and individual agency (specifically, social support and self-efficacy), in three settings where DREAMS was implemented from 2016 until at leas…

  • Impact of DREAMS interventions on experiences of violence among adolescent girls and young women

    Open Access•Elvis Omondi Achach Wambiya, Annabelle Gourlay et al.•ARTICLE•PLOS Global Public Health•2023

    DREAMS aims to reduce HIV incidence among adolescent girls and young women (AGYW) by tackling drivers of HIV risk including gender-based violence. We evaluate the impact of DREAMS on recent experiences of violence perpetuated by men against AGYW. AGYW cohorts were randomly selected from demographic platforms in South Africa (rural KwaZulu-Natal) and Kenya (Nairobi informal settlements and rural Gem sub-county). AGYW aged 13–22 years were enrolled…

  • The challenges of implementing antibiotic stewardship in diverse poultry value chains in Kenya

    Open Access•Alex Hughes, Emma J Roe et al.•ARTICLE•Agriculture and Human Values•2023•Cited by: 1•References: 7

    This paper investigates the challenges of implementing antibiotic stewardship – reducing and optimizing the use of antibiotics – in agricultural settings of Low- and Middle-Income Countries (LMICs) as a strategic part of addressing the global problem of antimicrobial resistance (AMR). It does so through analysis of the rapidly transforming yet diverse Kenyan poultry sector, characterized by growing commercial operations alongside traditional smal…

  • Stakeholder perspectives on the barriers and facilitators to integrating cardiovascular disease and diabetes management at primary care in Kenya

    Open Access•Elvis Omondi Achach Wambiya, James Odhiambo Oguta et al.•ARTICLE•PLOS Global Public Health•2025

    Integrated care is increasingly recognised as a key strategy for the management of multimorbidity. However, evidence on the factors associated with the implementation of integrated care models in low- and middle-income countries remains limited. We explored how stakeholders perceived integrated care, existing challenges, and recommendations for integrating cardiovascular disease and diabetes management at primary health care (PHC) level in Kenya.…

  • What combination of interventions can optimise HIV prevention for adolescent girls and young women? Cohort analysis of DREAMS participation in urban and rural Kenya

    Open Access•Faith Magut, Sarah Mulwa et al.•ARTICLE•PLOS Global Public Health•2025

    Comprehensive intervention packages are recommended to address multiple sources of HIV risk for adolescent girls and young women (AGYW). DREAMS is a multi-component HIV prevention program designed to reduce HIV incidence among AGYW. We conducted a prospective cohort study among AGYW aged 13–22 years, randomly selected in rural Gem and urban Nairobi informal settlements followed from 2017/2018–2019. AGYW were classified into three groups: (1) invi…

  • Application of Decision-Analytic Models to Evaluate Integrated Care Interventions for Cardiometabolic Multimorbidity

    Open Access•Elvis Omondi Achach Wambiya, Duncan Gillespie et al.•ARTICLE•International Journal of…•2026

    Introduction: Integrated care is increasingly adopted to address the needs of patients with multimorbidity, but cost-effective configuration of integrated healthcare pathways remains unclear. This study reviewed decision analytic models (DAMs) used in economic evaluations of integrated care interventions for cardiometabolic multimorbidity. Methods: A systematic search of eight electronic databases was conducted to identify peer-reviewed articles …

  • Stakeholders perspectives on the barriers and facilitators for implementing integrated primary care for cardiometabolic disease prevention and management in Kenya

    Open Access•Elvis Omondi Achach Wambiya, James Odhiambo Oguta et al.•ARTICLE•International Journal of…•2026

    Background: Integrated care is increasingly recognised as a key strategy for the management of multimorbidity. However, evidence on the factors associated with the implementation of integrated care models in low- and middle-income countries (LMICs) remains limited. We explored stakeholders' perceptions on existing challenges and recommendations for implementing integrated care at primary health care (PHC) level to tackle cardiometabolic multimorb…

Health care (6 works) · Medicine (6 works) · Environmental health (5 works) · Nursing (5 works) · Population (5 works) · Adolescent Sexual and Reproductive Health (4 works) · Logistic regression (4 works) · Psychological intervention (4 works) · Biostatistics (3 works) · Business (3 works)

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