Leonard Ogbonna Ajah

University of Nigeria

Also at University of Nigeria Teaching Hospitalfrom their recent papers

Publishing since 2012, latest 2026

Pediatrics, Perinatology and Child Health
Public Health, Environmental and Occupational Health
Obstetrics and Gynecology
Epidemiology
Oncology
General Health Professions

Publications: 592012–2026
Citations: 695to those papers
h-index: 15i10-index 22
Field-weighted impact: 0.841.00 is the world average
World top 10%: 10%6 of 59 scored papers
Open access: 71%42 papers free to read

4 other works — preprints, datasets and the like — are listed but not counted.

By year

Papers, and the citations to them

Publications, left axisCitations to that year’s papers, right axis2026 still in progress

Career

On their papers

Every institution they have given on a paper.

Publications

59 in all

Chlamydia trachomatis infection seroprevalence among women with normal and abnormal cervical smears and its implication for Nigerian cervical cancer screening
2026BMC Infectious DiseasesJournalOpen accessCorresponding0 citations10.1186/s12879-026-12994-4
Cervical Cancer Screening among Human Immunodeficiency Virus-positive Women: A Comparison of Outcome between Visual Inspection with Acetic Acid and Papanicolaou Smear Cytology

Download CV:PDFWord

Citations received each year

Peerford

To all their work, old papers included. Google Scholar also counts citations from theses, books and web pages, so its line runs higher.

What they work on

From the classification of each paper

Subfields

Pediatrics, Perinatology and Child Health3051%
Public Health, Environmental and Occupational Health2136%
Obstetrics and Gynecology2034%
Epidemiology1932%
Oncology814%
General Health Professions712%
Infectious Diseases47%
Microbiology47%
Biochemistry35%
Emergency Medicine35%

Health Sciences
Life Sciences

Topics most written on

Global Maternal and Child Health16
Cervical Cancer and HPV Research13
Maternal and fetal healthcare11
Maternal and Perinatal Health Interventions9
Pregnancy and preeclampsia studies7
Reproductive Health and Contraception6
Preterm Birth and Chorioamnionitis5
Malaria Research and Control4
Maternal Mental Health During Pregnancy and Postpartum4
Reproductive tract infections research4
Adolescent Sexual and Reproductive Health3
Assisted Reproductive Technology and Twin Pregnancy3

Who they write with

Their most frequent co-authors, and the papers those co-authors share

Where their co-authors are

2% of their papers have a co-author abroad

papers co-written1111111Home

Most frequent partner countries

United States1

Papers with at least one author in that country.

Institutions written with most

Federal Teaching Hospital AbakalikiNG35 papers
University of Nigeria Teaching HospitalNG32 papers
Alex Ekwueme Federal University, Ndufu-AlikeNG10 papers
Nnamdi Azikiwe University Teaching HospitalNG6 papers
Enugu State University of Science and TechnologyNG6 papers
Chukwuemeka Odumegwu Ojukwu UniversityNG4 papers
Nnamdi Azikiwe UniversityNG4 papers
University of Benin Teaching HospitalNG2 papers
Federal Medical CentreNG2 papers
Johns Hopkins MedicineUS1 paper

Where they publish

JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH5
Journal of Obstetrics and Gynaecology5
Global Journal of Health Science3
International Journal of Gynecology & Obstetrics3
OncoTargets and Therapy3
Advances in Reproductive Sciences2

Development goals addressed

From each paper’s title and abstract

3Good health and well-being25
1No poverty8
5Gender equality7
8Decent work and economic growth2
2Zero hunger1
10Reduced inequalities1
17Partnerships for the goals1

Most cited

Obstetric Outcome and Significance of Labour Induction in a Health Resource Poor Setting
Obstetrics and Gynecology International1
201477 citationsWorld top 10%Open access · Gold
Comparison of domestic violence against women in urban versus rural areas of southeast Nigeria
International Journal of Women s Health5
201462 citationsOpen access · Gold

Annals of African Medicine

Gynaecological Cancers in HIV Positive and Negative Women—A Single-Center Retrospective Study (2008-2017)

2022Open Journal of Obstetrics and GynecologyJournalOpen accessSenior author0 citations10.4236/ojog.2022.122013

Estimation of fetal weight: a comparison of clinical and sonographic methods

2019Journal of Obstetrics and GynaecologyJournalCorresponding9 citations10.1080/01443615.2019.1571567

Awareness and perception of vasectomy among antenatal women in a tertiary health facility in southeast Nigeria

2018International Journal of Reproduction Contraception Obstetrics and GynecologyJournalOpen access3 citations10.18203/2320-1770.ijrcog20181899

Women’s Views on Routine Antenatal Ultrasound Scan in a Low Resource Nigerian Setting

2018JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCHJournalOpen accessSenior author6 citations10.7860/jcdr/2018/35992.11693

Attitude of Reproductive Healthcare Providers to Prenatal Diagnosis in a Low Resource Nigerian Setting

2017JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCHJournalOpen accessFirst authorCorresponding3 citations10.7860/jcdr/2017/22874.9424

The Feto-Maternal Outcome of Preeclampsia with Severe Features and Eclampsia in Abakaliki, South-East Nigeria

2016JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCHJournalOpen accessFirst authorCorresponding54 citations10.7860/jcdr/2016/21078.8499

Evaluation of Clinical Diagnosis of Fetal Distress and Perinatal Outcome in a Low Resource Nigerian Setting

2016JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCHJournalOpen accessFirst authorCorresponding23 citations10.7860/jcdr/2016/17274.7687

Association of Intrauterine Device (IUD) and Cervical Neoplasia - A Study in a Poor Nigerian Population

2016JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCHJournalOpen accessFirst authorCorresponding3 citations10.7860/jcdr/2016/18328.8049

Colposcopy and its challenges in Nigeria

2016Annals of Tropical Medicine and Public HealthJournalFirst authorCorresponding1 citation10.4103/1755-6783.193936

Obstetric Outcome and Significance of Labour Induction in a Health Resource Poor Setting

2014Obstetrics and Gynecology InternationalJournalOpen accessSenior author77 citations10.1155/2014/419621

Annals of African Medicine

BMC Pregnancy and Childbirth2

How it can be read

71% free to read

Diamond 11 · 19%Free to read and to publish
Gold 29 · 49%In an open-access journal
Hybrid 2 · 3%Open in a subscription journal
Closed 17 · 29%Behind a paywall

JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH3

201654 citationsWorld top 10%Open access · Gold