Opeyemi R. Akinajo

University of Lagos

Also at Lagos University Teaching Hospital and Karolinska Institutetfrom their recent papers

Publishing since 2014, latest 2026

Pediatrics, Perinatology and Child Health
Hematology
Obstetrics and Gynecology
Genetics
Public Health, Environmental and Occupational Health
Demography

Publications: 302014–2026
Citations: 386to those papers
h-index: 10i10-index 10
Field-weighted impact: 3.701.00 is the world average
World top 10%: 40%12 of 30 scored papers
Open access: 87%26 papers free to read

8 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

30 in all

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 Health1860%
Hematology1550%
Obstetrics and Gynecology1240%
Genetics930%
Public Health, Environmental and Occupational Health517%
Demography27%
Nutrition and Dietetics27%
Reproductive Medicine27%
Rheumatology27%
Emergency Medical Services13%

Health Sciences
Social Sciences

Topics most written on

Iron Metabolism and Disorders14
Global Maternal and Child Health13
Hemoglobinopathies and Related Disorders9
Maternal and fetal healthcare6
Pregnancy and preeclampsia studies5
COVID-19 Impact on Reproduction3
Erythropoietin and Anemia Treatment3
Maternal and Perinatal Health Interventions3
Assisted Reproductive Technology and Twin Pregnancy2
Family Dynamics and Relationships2
Folate and B Vitamins Research2
Global Health and Surgery2

Who they write with

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

Where their co-authors are

60% of their papers have a co-author abroad

papers co-written23457911Home

Most frequent partner countries

United States11
United Kingdom11
Sweden9
Belgium7
South Africa5
Canada4
Ghana2
Switzerland2

Papers with at least one author in that country.

Institutions written with most

Lagos University Teaching HospitalNG21 papers
London School of Hygiene & Tropical MedicineGB9 papers
Karolinska InstitutetSE9 papers
Harvard UniversityUS7 papers
Instituut voor Tropische GeneeskundeBE7 papers
Institute of Human VirologyNG6 papers
Aminu Kano Teaching HospitalNG6 papers
University of the WitwatersrandZA5 papers
Bayero University KanoNG5 papers
University College Hospital, IbadanNG5 papers

Where they publish

PLoS ONE3
The Lancet Global Health3
Implementation Science Communications2
PubMed2
African Journal of Reproductive Health1
BJOG An International Journal of Obstetrics & Gynaecology1

Development goals addressed

From each paper’s title and abstract

3Good health and well-being16
2Zero hunger4
1No poverty2

Most cited

Quality and outcomes of maternal and perinatal care for 76,563 pregnancies reported in a nationwide network of Nigerian referral-level hospitals
EClinicalMedicine
202257 citationsWorld top 10%Open access · Gold
Intravenous versus oral iron for anaemia among pregnant women in Nigeria (IVON): an open-label, randomised controlled trial
The Lancet Global Health
202444 citationsWorld top 10%Open access · Gold
Intravenous versus oral iron for iron deficiency anaemia in pregnant Nigerian women (IVON): study protocol for a randomised hybrid effectiveness-implementation trial

The Lancet Global Health

Burden and outcomes of postpartum haemorrhage in Nigerian referral‐level hospitals

2024BJOG An International Journal of Obstetrics & GynaecologyJournalOpen access8 citations10.1111/1471-0528.17822

Serum Vitamin D Deficiency and Male Infertility: A Relationship?

2024CureusJournalOpen accessFirst authorCorresponding0 citations10.7759/cureus.56070

Maternal and Perinatal Outcomes of Abruptio Placenta at the Lagos University Teaching Hospital

2022International Journal of Medicine and Health DevelopmentJournalOpen accessSenior author0 citations10.4103/ijmh.ijmh_52_22

Multiple uterine fibroids in an 18-year-old: a case report and review of literature

2020DOAJ (DOAJ: Directory of Open Access Journals)JournalOpen accessFirst author4 citations

Comparison of maternal and fetal outcomes of elective and emergency caesarean deliveries

2020Nigerian Journal of MedicineJournalOpen accessSenior author3 citations10.4103/1115-2613.284896

Lassa Fever in Pregnancy: Report of 2 Cases Seen at the University College Hospital, Ibadan

2016Case Reports in Obstetrics and GynecologyJournalOpen access30 citations10.1155/2016/9673683

BMC Pregnancy and Childbirth

How it can be read

87% free to read

Diamond 1 · 3%Free to read and to publish
Gold 19 · 63%In an open-access journal
Hybrid 1 · 3%Open in a subscription journal
Bronze 2 · 7%Free to read, no open licence
Green 3 · 10%A copy in a repository
Closed 4 · 13%Behind a paywall

Who funds it

19 of 30 papers name a funder

Bill and Melinda Gates Foundation12
Karolinska Institutet3
Fogarty International Center2
UNICEF2
World Health Organization2
Bundesministerium für Gesundheit1
Hebei North University1
Instituut voor Tropische Geneeskunde1

202240 citationsWorld top 10%Open access · Gold

In-vitro fertilization, gamete donation and surrogacy: perceptions of women attending an infertility clinic in Ibadan, Nigeria.

PubMed3

201432 citations