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Sylvester Okeke

Biographic Data

ID1100999
NAMESylvester Okeke
GIVEN NAMESSylvester
FAMILY NAMEOkeke
SIGNATUREOKEKE S
AFFILIATIONSUNSW Sydney
ORCID0000-0001-9211-1813
VERIFIEDYes
TOTAL WORKS15
TOTAL CITATIONS1
WORKS AS AUTHOR15
WORKS AS EDITOR0
FIRST PUBLICATION YEAR2019
LATEST PUBLICATION YEAR2026
H-INDEX1
  • Association between male absence and women’s reproductive autonomy in sub-Saharan Africa

    Open Access•Alex Bawuah, Ruth O Ejiwale et al.•ARTICLE•PLOS Global Public Health•2026

    Reproductive decision-making within partnered relationships in sub-Saharan Africa (SSA) is often shaped by patriarchal gender norms, with male partners commonly exerting substantial influence over family planning and contraception. These dynamics may shift when male partners migrate and are not physically present in the household. This study investigates the association between male absence and women’s reproductive autonomy in SSA, using national…

  • Prevalence and risk factors of home delivery among rural women

    Open Access•Ebenezer Kwesi Armah‐Ansah, Deborah Oluwatosin Okeke-Obayemi et al.•ARTICLE•Reproductive Health•2026

  • Associations between water insecurity and reproductive health outcomes among adolescent girls and young women in Sub-Saharan Africa

    Open Access•Alex Bawuah, Deborah O Okeke-Obayemi et al.•ARTICLE•PLOS Global Public Health•2026

    Adolescent girls and young women (AGYW) in sub-Saharan Africa (SSA) face heightened risks of adverse sexual and reproductive health outcomes. Water insecurity may contribute to these vulnerabilities by creating social and environmental stressors that undermine reproductive health and rights, yet this relationship remains understudied. This study examined associations between water insecurity and reproductive health outcomes among AGYW in 29 SSA c…

  • Including the excluded

    Open Access•Sylvester Okeke, Eliza Basheer et al.•ARTICLE•International Journal for Equity…•2026

    In Australia, just as most other settings, existing programs focusing on sexual and reproductive health of young people largely occur within formal school and clinical settings, thereby limiting accessibility to young people experiencing social vulnerabilities such as homelessness. This sub-population are often targeted through the specialist homelessness services (SHS) in Australia. However, growing evidence shows that youth service staff often …

  • “The Culturally and Linguistically Diverse Community Is Not Just Minoritised But Ignored”

    Open Access•Sylvester Okeke, Robyn Horwitz et al.•ARTICLE•Health Expectations•2025

    BACKGROUND: People from culturally and linguistically diverse (CALD) backgrounds who are living in high-income countries, are disproportionately impacted by blood-borne viruses and sexually transmissible infections (BBVs/STIs). Despite this, many do not engage with available preventive and treatment services due to a range of patient, provider and systems level barriers that make patient engagement challenging. This study explores ways to make he…

  • Prevalence and determinants of HIV testing among adolescent girls and young women in 28 sub-Saharan African countries

    Open Access•Deborah Oluwatosin Okeke-Obayemi, Oluwatobi Abel Alawode et al.•ARTICLE•BMC Public Health•2025

    HIV and AIDS remain a major global public health issue with the largest burden in sub-Saharan African (SSA) countries. Adolescent girls and young women (AGYW) in the sub-Saharan African region experience intersecting vulnerabilities that may increase their exposure to HIV, while also constraining their engagement with treatment and care. HIV testing is crucial in the AIDS response for both prevention and treatment. Therefore, understanding HIV te…

  • Understanding Hepatitis B Knowledge, Attitudes, and Stigma in the Korean Community in Australia

    Open Access•Youngnam Baek, Robyn Horwitz et al.•ARTICLE•Journal of Racial and Ethnic…•2025•Cited by: 1•References: 36

  • People Like Us Would Have No Clue If the Information Is Online

    Open Access•L Brener, Hoang Minh Khoi Vu et al.•ARTICLE•Journal of Racial and Ethnic…•2025•References: 30

    Socio-cultural and behavioural factors are often not adequately considered in designing health promotion programs for culturally and linguistically diverse communities in Australia. Given that people of Vietnamese background are disproportionately impacted by hepatitis B, the aim of this research was to better understand these factors to inform hepatitis B health promotion messages for the Vietnamese community. Twenty participants (four living wi…

  • If I use pad, I feel comfortable and safe”

    Open Access•Nkemdilim Ene, Obasanjo Afolabi Bolarinwa et al.•ARTICLE•BMC Public Health•2024

    In-school adolescent girls in Abuja, Nigeria, have good menstruation-related knowledge and positive attitudes, as well as practise menstrual hygiene management. Students' class and age at first menstruation were major factors associated with good knowledge of menstruation and menstrual hygiene management; respondents' class, religion and parents' educational qualification were associated with a positive attitude, while respondents' religion and p…

  • Understanding stigma and attitudes towards hepatitis B among university students in Australia of Chinese and Vietnamese background

    Open Access•L Brener, Robyn Horwitz et al.•ARTICLE•BMC Public Health•2024

    This research provides insights that could inform culturally sensitive health promotion programs to address negative attitudes towards hepatitis B among the broader Chinese and Vietnamese communities living in Australia

  • I am not really into the government telling me what I need to eat”

    Open Access•Abimbola S Ojo, Lawrence Achilles Nnyanzi et al.•ARTICLE•BMC Public Health•2023

    The results of this study indicate that strategies to improve access to healthy foods are required to improve healthy dietary practices among the study population. Such strategies could help address this group's structural and individual barriers to healthy dietary practices. In addition, developing a culturally responsive eating guide could also enhance the acceptability and utilisation of such resources among communities with ethnic diversity i…

  • Compared to Covid, HIV Is Nothing”

    Open Access•Sylvester Okeke•ARTICLE•International Journal of…•2022

    Background : While a large body of evidence indicates changes in alcohol and other drug use among young people as a result of the COVID-19 pandemic, there is a lack of evidence around changes in sexual practices and how the pandemic may be impacting the potential spread of blood-borne viruses and sexually transmissible infections (BBVs/STIs). Most of what we know about sex during COVID-19 lockdowns is largely based on solitary sexual practices, w…

  • "It was protected, except, it wasn’t [with] a condom"

    Open Access•Sylvester Okeke•ARTICLE•BMC Public Health•2022

    Based on the results of this study, tailored sexual health interventions for international students; which incorporate strategies for modifying perceived sexual norms in Australia, are advocated. In addition, this study recommends sexual health interventions that promote dual protection of condoms for both contraception and BBVs/STIs

  • How perceived Australian sexual norms shape sexual practices of East Asian and sub-Saharan African international students in Sydney

    Open Access•Sylvester Okeke•ARTICLE•BMC Public Health•2021

    Findings provide evidence to support a need for contextualized and effective sexual health services for international students that take account of perceptions around sexual norms and how they can be modified to ensure that sexual practices which these students may engage in, will be managed in a safe and responsible manner

  • Protective sexual behaviours among young adults in Nigeria

    Open Access•Adegboyega Isaac Ajayi, Anthony Idowu Ajayi et al.•ARTICLE•BMC Public Health•2019

    This study found that a majority of adolescents and young adults in Nigerian Universities engage in protective sexual behaviours. Adequate family support and living with both parents are positively associated with protective sexual behaviours. The study however revealed that about one-fifth of our participants engaged in high-risk sexual behaviour. This suggests a need for behavioural change interventions, provision of sexual health services and …

  • Understanding Hepatitis B Knowledge, Attitudes, and Stigma in the Korean Community in Australia

    Open Access•Youngnam Baek, Robyn Horwitz et al.•ARTICLE•Journal of Racial and Ethnic…•2025•Cited by: 1•References: 36

  • Protective sexual behaviours among young adults in Nigeria

    Open Access•Adegboyega Isaac Ajayi, Anthony Idowu Ajayi et al.•ARTICLE•BMC Public Health•2019

    This study found that a majority of adolescents and young adults in Nigerian Universities engage in protective sexual behaviours. Adequate family support and living with both parents are positively associated with protective sexual behaviours. The study however revealed that about one-fifth of our participants engaged in high-risk sexual behaviour. This suggests a need for behavioural change interventions, provision of sexual health services and …

  • How perceived Australian sexual norms shape sexual practices of East Asian and sub-Saharan African international students in Sydney

    Open Access•Sylvester Okeke•ARTICLE•BMC Public Health•2021

    Findings provide evidence to support a need for contextualized and effective sexual health services for international students that take account of perceptions around sexual norms and how they can be modified to ensure that sexual practices which these students may engage in, will be managed in a safe and responsible manner

  • Compared to Covid, HIV Is Nothing”

    Open Access•Sylvester Okeke•ARTICLE•International Journal of…•2022

    Background : While a large body of evidence indicates changes in alcohol and other drug use among young people as a result of the COVID-19 pandemic, there is a lack of evidence around changes in sexual practices and how the pandemic may be impacting the potential spread of blood-borne viruses and sexually transmissible infections (BBVs/STIs). Most of what we know about sex during COVID-19 lockdowns is largely based on solitary sexual practices, w…

  • "It was protected, except, it wasn’t [with] a condom"

    Open Access•Sylvester Okeke•ARTICLE•BMC Public Health•2022

    Based on the results of this study, tailored sexual health interventions for international students; which incorporate strategies for modifying perceived sexual norms in Australia, are advocated. In addition, this study recommends sexual health interventions that promote dual protection of condoms for both contraception and BBVs/STIs

  • I am not really into the government telling me what I need to eat”

    Open Access•Abimbola S Ojo, Lawrence Achilles Nnyanzi et al.•ARTICLE•BMC Public Health•2023

    The results of this study indicate that strategies to improve access to healthy foods are required to improve healthy dietary practices among the study population. Such strategies could help address this group's structural and individual barriers to healthy dietary practices. In addition, developing a culturally responsive eating guide could also enhance the acceptability and utilisation of such resources among communities with ethnic diversity i…

  • If I use pad, I feel comfortable and safe”

    Open Access•Nkemdilim Ene, Obasanjo Afolabi Bolarinwa et al.•ARTICLE•BMC Public Health•2024

    In-school adolescent girls in Abuja, Nigeria, have good menstruation-related knowledge and positive attitudes, as well as practise menstrual hygiene management. Students' class and age at first menstruation were major factors associated with good knowledge of menstruation and menstrual hygiene management; respondents' class, religion and parents' educational qualification were associated with a positive attitude, while respondents' religion and p…

  • Understanding stigma and attitudes towards hepatitis B among university students in Australia of Chinese and Vietnamese background

    Open Access•L Brener, Robyn Horwitz et al.•ARTICLE•BMC Public Health•2024

    This research provides insights that could inform culturally sensitive health promotion programs to address negative attitudes towards hepatitis B among the broader Chinese and Vietnamese communities living in Australia

  • “The Culturally and Linguistically Diverse Community Is Not Just Minoritised But Ignored”

    Open Access•Sylvester Okeke, Robyn Horwitz et al.•ARTICLE•Health Expectations•2025

    BACKGROUND: People from culturally and linguistically diverse (CALD) backgrounds who are living in high-income countries, are disproportionately impacted by blood-borne viruses and sexually transmissible infections (BBVs/STIs). Despite this, many do not engage with available preventive and treatment services due to a range of patient, provider and systems level barriers that make patient engagement challenging. This study explores ways to make he…

  • Prevalence and determinants of HIV testing among adolescent girls and young women in 28 sub-Saharan African countries

    Open Access•Deborah Oluwatosin Okeke-Obayemi, Oluwatobi Abel Alawode et al.•ARTICLE•BMC Public Health•2025

    HIV and AIDS remain a major global public health issue with the largest burden in sub-Saharan African (SSA) countries. Adolescent girls and young women (AGYW) in the sub-Saharan African region experience intersecting vulnerabilities that may increase their exposure to HIV, while also constraining their engagement with treatment and care. HIV testing is crucial in the AIDS response for both prevention and treatment. Therefore, understanding HIV te…

  • Understanding Hepatitis B Knowledge, Attitudes, and Stigma in the Korean Community in Australia

    Open Access•Youngnam Baek, Robyn Horwitz et al.•ARTICLE•Journal of Racial and Ethnic…•2025•Cited by: 1•References: 36

  • People Like Us Would Have No Clue If the Information Is Online

    Open Access•L Brener, Hoang Minh Khoi Vu et al.•ARTICLE•Journal of Racial and Ethnic…•2025•References: 30

    Socio-cultural and behavioural factors are often not adequately considered in designing health promotion programs for culturally and linguistically diverse communities in Australia. Given that people of Vietnamese background are disproportionately impacted by hepatitis B, the aim of this research was to better understand these factors to inform hepatitis B health promotion messages for the Vietnamese community. Twenty participants (four living wi…

  • Association between male absence and women’s reproductive autonomy in sub-Saharan Africa

    Open Access•Alex Bawuah, Ruth O Ejiwale et al.•ARTICLE•PLOS Global Public Health•2026

    Reproductive decision-making within partnered relationships in sub-Saharan Africa (SSA) is often shaped by patriarchal gender norms, with male partners commonly exerting substantial influence over family planning and contraception. These dynamics may shift when male partners migrate and are not physically present in the household. This study investigates the association between male absence and women’s reproductive autonomy in SSA, using national…

  • Prevalence and risk factors of home delivery among rural women

    Open Access•Ebenezer Kwesi Armah‐Ansah, Deborah Oluwatosin Okeke-Obayemi et al.•ARTICLE•Reproductive Health•2026

  • Associations between water insecurity and reproductive health outcomes among adolescent girls and young women in Sub-Saharan Africa

    Open Access•Alex Bawuah, Deborah O Okeke-Obayemi et al.•ARTICLE•PLOS Global Public Health•2026

    Adolescent girls and young women (AGYW) in sub-Saharan Africa (SSA) face heightened risks of adverse sexual and reproductive health outcomes. Water insecurity may contribute to these vulnerabilities by creating social and environmental stressors that undermine reproductive health and rights, yet this relationship remains understudied. This study examined associations between water insecurity and reproductive health outcomes among AGYW in 29 SSA c…

  • Including the excluded

    Open Access•Sylvester Okeke, Eliza Basheer et al.•ARTICLE•International Journal for Equity…•2026

    In Australia, just as most other settings, existing programs focusing on sexual and reproductive health of young people largely occur within formal school and clinical settings, thereby limiting accessibility to young people experiencing social vulnerabilities such as homelessness. This sub-population are often targeted through the specialist homelessness services (SHS) in Australia. However, growing evidence shows that youth service staff often …

Public health (13 works) · Medicine (9 works) · Environmental health (8 works) · Adolescent Sexual and Reproductive Health (7 works) · Biostatistics (6 works) · Nursing (6 works) · Population (6 works) · Family medicine (5 works) · Logistic regression (5 works) · Reproductive health (5 works)

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