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A. Obasi · SciRah

Researcher profile · Semantic Scholar

A. Obasi

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A. Obasi — researcher profile on SciRah

h-index: 29
Works: 103
Citations: 3,047

Most-cited papers

Biological and behavioural impact of an adolescent sexual health intervention in Tanzania: a community-randomized trial
D. Ross, J. Changalucha, A. Obasi, J. Todd +8 more
2007AIDS (London)320 citations Open access
Semantic Scholar
The effectiveness of sex education and HIV education interventions in schools in developing countries.
D. Kirby, A. Obasi, B. A. Laris
2006World Health Organization technical report series275 citations
Semantic Scholar
“A bit more truthful”: the validity of adolescent sexual behaviour data collected in rural northern Tanzania using five methods
M. Plummer, David Ross, D. Wight, J. Changalucha +7 more
2004Sexually Transmitted Infections250 citations Open access
Semantic Scholar
Consensus statement on measures to promote equitable authorship in the publication of research from international partnerships
B. Morton, A. Vercueil, R. Masekela, E. Heinz +9 more
2021Anaesthesia173 citations Open access
Semantic Scholar
Long-Term Biological and Behavioural Impact of an Adolescent Sexual Health Intervention in Tanzania: Follow-up Survey of the Community-Based MEMA kwa Vijana Trial
A. Doyle, D. Ross, Kaballa Maganja, K. Baisley +9 more
2010PLoS Medicine155 citations Open access
Semantic Scholar
Herpes simplex virus type 2 infection increases HIV incidence: a prospective study in rural Tanzania
María del Mar Pujades Rodríguez, A. Obasi, F. Mosha, J. Todd +6 more
2002AIDS (London)154 citations
Semantic Scholar
The MEMA kwa Vijana project: design of a community randomised trial of an innovative adolescent sexual health intervention in rural Tanzania.
R. Hayes, J. Changalucha, D. Ross, A. Gavyole +6 more
2005Contemporary Clinical Trials88 citations
Semantic Scholar
Risk factors influencing HIV infection incidence in a rural African population: a nested case-control study.
J. Todd, H. Grosskurth, J. Changalucha, A. Obasi +9 more
2006Journal of Infectious Diseases84 citations
Semantic Scholar
Rationale and design of the MEMA kwa Vijana adolescent sexual and reproductive health intervention in Mwanza Region, Tanzania
A. Obasi, Bernadette Cleophas, D. Ross, K. L. Chima +10 more
2006AIDS Care83 citations
Semantic Scholar
A process evaluation of a school-based adolescent sexual health intervention in rural Tanzania: the MEMA kwa Vijana programme.
M. Plummer, D. Wight, A. Obasi, J. Wamoyi +6 more
2006Health Education Research82 citations Open access
Semantic Scholar
Unpacking the black box: the importance of process data to explain outcomes
D. Wight, A. Obasi
200365 citations
Semantic Scholar
A process evaluation of the scale up of a youth-friendly health services initiative in northern Tanzania
J. Renju, B. Andrew, K. Nyalali, Coleman Kishamawe +3 more
2010Journal of the International AIDS Society61 citations Open access
Semantic Scholar
Asking semi‐literate adolescents about sexual behaviour: the validity of assisted self‐completion questionnaire (ASCQ) data in rural Tanzania
M. Plummer, D. Wight, David A. Ross, R. Balira +7 more
2004Tropical medicine & international health61 citations
Semantic Scholar
A ‘Mystery Client’ Evaluation of Adolescent Sexual and Reproductive Health services in Health Facilities from Two Regions in Tanzania
Zaina Mchome, E. Richards, S. Nnko, John Dusabe +2 more
2015PLoS ONE60 citations Open access
Semantic Scholar
Are schools a good setting for adolescent sexual health promotion in rural Africa? A qualitative assessment from Tanzania.
M. Plummer, D. Wight, J. Wamoyi, K. Nyalali +5 more
2006Health Education Research57 citations
Semantic Scholar
Respiratory research funding is inadequate, inequitable, and a missed opportunity
Siân Williams, A. Sheikh, H. Campbell, N. Fitch +6 more
2020The Lancet Respiratory Medicine48 citations Open access
Semantic Scholar
Dusty discos and dangerous desires: community perceptions of adolescent sexual and reproductive health risks and vulnerability and the potential role of parents in rural Mwanza, Tanzania
P. Remes, J. Renju, K. Nyalali, L. Medard +4 more
2010Culture, Health and Sexuality46 citations
Semantic Scholar
The Global Plan to Stop TB: a unique opportunity to address poverty and the Millennium Development Goals.
S. Squire, A. Obasi, Bertha Nhlema-Simwaka
2006The Lancet46 citations
Semantic Scholar
The sexual health of pupils in years 4 to 6 of primary schools in rural Tanzania
J. Todd, J. Changalucha, David Ross, F. Mosha +6 more
2004Sexually Transmitted Infections43 citations Open access
Semantic Scholar
What should equity in global health research look like?
Manasi Kumar, L. Atwoli, R. Burgess, N. Gaddour +10 more
2022The Lancet42 citations
Semantic Scholar
Equity in global health research: A proposal to adopt author reflexivity statements
S. Saleh, R. Masekela, E. Heinz, S. Abimbola +9 more
2022PLOS Global Public Health37 citations Open access
Semantic Scholar
‘If not TB, what could it be?’ Chest X-ray findings from the 2016 Kenya Tuberculosis Prevalence Survey
B. Mungai, E. Joekes, E. Masini, A. Obasi +10 more
2021Thorax36 citations Open access
Semantic Scholar
Scaling up a school-based sexual and reproductive health intervention in rural Tanzania: a process evaluation describing the implementation realities for the teachers.
J. Renju, K. Nyalali, B. Andrew, Coleman Kishamawe +4 more
2010Health Education Research36 citations
Semantic Scholar
Scaling up adolescent sexual and reproductive health interventions through existing government systems? A detailed process evaluation of a school-based intervention in Mwanza region in the northwest of Tanzania.
J. Renju, B. Andrew, L. Medard, Coleman Kishamawe +3 more
2011Journal of Adolescent Health32 citations
Semantic Scholar
Partnering to proceed: scaling up adolescent sexual reproductive health programmes in Tanzania. Operational research into the factors that influenced local government uptake and implementation
J. Renju, M. Makokha, C. Kato, L. Medard +4 more
2010Health Research Policy and Systems32 citations Open access
Semantic Scholar
Impact of the MEMA kwa Vijana adolescent sexual and reproductive health interventions on use of health services by young people in rural Mwanza, Tanzania: results of a cluster randomized trial.
N. Larke, Bernadette Cleophas-Mazige, M. Plummer, A. Obasi +6 more
2010Journal of Adolescent Health32 citations
Semantic Scholar
From Trial Intervention to Scale-Up: Costs of an Adolescent Sexual Health Program in Mwanza, Tanzania
F. Terris-Prestholt, L. Kumaranayake, A. Obasi, Bernadette Cleophas-Mazige +4 more
2006Sexually Transmitted Diseases32 citations
Semantic Scholar
What are the barriers to the diagnosis and management of chronic respiratory disease in sub-Saharan Africa? A qualitative study with healthcare workers, national and regional policy stakeholders in five countries
S. Mulupi, Irene Ayakaka, R. Tolhurst, Nicole Kozak +13 more
2022BMJ Open25 citations Open access
Semantic Scholar
Asthma symptoms, spirometry and air pollution exposure in schoolchildren in an informal settlement and an affluent area of Nairobi, Kenya
H. Meme, E. Amukoye, C. Bowyer, J. Chakaya +28 more
2023Thorax22 citations Open access
Semantic Scholar
Management of chronic lung diseases in Sudan and Tanzania: how ready are the country health systems?
U. Egere, E. Shayo, N. Ntinginya, R. Osman +26 more
2021BMC Health Services Research22 citations Open access
Semantic Scholar
“He is suitable for her, of course he is our relative”: a qualitative exploration of the drivers and implications of child marriage in Gezira State, Sudan
L. Dean, A. Obasi, A. El Sony, Selma Fadul +3 more
2019BMJ Global Health22 citations Open access
Semantic Scholar
The weight of evidence: a method for assessing the strength of evidence on the effectiveness of HIV prevention interventions among young people.
D. Ross, D. Wight, G. Dowsett, A. Buve +1 more
2006World Health Organization technical report series21 citations
Semantic Scholar
Promotive and preventive interventions for adolescent mental health in Sub-Saharan Africa: a combined scoping and systematic review
M. Seekles, Fantacy Twagira, A. Alam, A. Obasi
2023BMJ public health20 citations Open access
Semantic Scholar
Geographical variations in the prevalence of HIV and other sexually transmitted infections in rural Tanzania
H. Jansen, L. Morison, F. Mosha, J. Changalucha +8 more
2003International Journal of STD and AIDS20 citations
Semantic Scholar
HIV risk-reduction in adolescents.
J. Stephenson, A. Obasi
2004The Lancet19 citations
Semantic Scholar
“Honestly, this problem has affected me a lot”: a qualitative exploration of the lived experiences of people with chronic respiratory disease in Sudan and Tanzania
U. Egere, E. Shayo, M. Chinouya, M. Taegtmeyer +29 more
2023BMC Public Health17 citations Open access
Semantic Scholar
“I wanted evidence that my status had changed, so that is why I tested”: experiences with HIV self-testing among female sex workers in Malawi
Wezzie S Lora, N. Desmond, A. Obasi, M. Kumwenda +3 more
2020AIDS Care13 citations Open access
Semantic Scholar
Changing lung function and associated health-related quality-of-life: A five-year cohort study of Malawian adults
M. Njoroge, Patrick Mjojo, Catherine Chirwa, S. Rylance +9 more
2021EClinicalMedicine12 citations Open access
Semantic Scholar
Equity in excellence or just another tax on Black skin?
A. Obasi
2020The Lancet12 citations Open access
Semantic Scholar
Adolescent mental health research in Tanzania: a study protocol for a priority setting exercise and the development of an interinstitutional capacity strengthening programme
A. Obasi, M. Seekles, Judith Boshe, Dorothy E. Dow +8 more
2022BMJ Open11 citations Open access
Semantic Scholar
“There are bugs in condoms”: Tanzanian close-to-community providers' ability to offer effective adolescent reproductive health services
John Dusabe, Zaina Mchome, S. Nnko, J. Changalucha +1 more
2014Journal of family planning and reproductive health care11 citations Open access
Semantic Scholar
“Seek any means, and keep it your secret”: Young women’s attempts to control their reproduction through contraceptive and fertility practices in rural Tanzania
M. Plumer, J. Wamoyi, Z. S. Shigongo, G. Mshana +3 more
201011 citations Open access
Semantic Scholar
Promotive, preventive, and treatment interventions for adolescent mental health in sub-Saharan Africa: A protocol for two scoping reviews including systematic analyses of intervention effectiveness
James Steel, Fantacy Twagira, M. Seekles, A. Obasi
2022PLoS ONE9 citations Open access
Semantic Scholar
Authorship reflexivity statements: additional considerations
Melissa Taylor, Eva Heinz, M. Gondwe, R. Masekela +5 more
2024BMJ Global Health7 citations Open access
Semantic Scholar
Twenty years of herpes simplex virus type 2 (HSV-2) research in low-income and middle-income countries: systematic evaluation of progress made in addressing WHO prioritiesfor research in HSV-2 epidemiology and diagnostics
Muna Jama, Ela Mair Owen, Belinder Nahal, A. Obasi +1 more
2024BMJ Global Health7 citations Open access
Semantic Scholar
Measuring alcohol use among adolescents in Africa: A systematic scoping review of consumption, screening and assessment tools
M. Seekles, Eleanor Briegal, A. Biggane, A. Obasi
2023Drug and Alcohol Review7 citations Open access
Semantic Scholar
Racism in two UK global health institutions.
A. Obasi, Ayo Barley, M. Khan
2022The Lancet7 citations
Semantic Scholar
AIDS education programmes hit some targets: improving youth HIV prevention by sharing resources and better addressing community norms and concurrency.
M. Plummer, D. Wight, A. Obasi, J. Changalucha +2 more
2011AIDS (London)7 citations Open access
Semantic Scholar
Household food insecurity, maternal nutrition, environmental risks and infants’ health outcomes: protocol of the IMPALA birth cohort study in Uganda
Z. Terfa, R. Nantanda, M. Lesosky, G. Devereux +5 more
2022BMJ Open5 citations Open access
Semantic Scholar
Perspectives of Healthcare Workers, National and Regional Policy Stakeholders on the Management of Chronic Lung Disease in Five Sub-Saharan African Countries: Tale of a Vicious Cycle of Neglect
S. Mulupi, Irene Ayakaka, R. Tolhurst, Nicole Kozak +13 more
2020Social Science Research Network5 citations Open access
Semantic Scholar

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J. Changalucha×16
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J. Changalucha — researcher profile on SciRah
M. Plummer×11
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M. Plummer — researcher profile on SciRah
D. Ross×10
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D. Ross — researcher profile on SciRah
J. Todd×9
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J. Todd — researcher profile on SciRah

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H. Grosskurth — researcher profile on SciRah

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D. Wight — researcher profile on SciRah

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R. Hayes — researcher profile on SciRah

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M. Seekles — researcher profile on SciRah

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J. Renju — researcher profile on SciRah

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R. Tolhurst — researcher profile on SciRah

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D. Mabey — researcher profile on SciRah

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F. Mosha — researcher profile on SciRah