Nigerian research output has nearly tripled in a decade: 16,560 works with a Nigerian institutional affiliation were indexed for 2015, against 46,381 for 2024 — a 2.8-fold rise. Every figure below was queried directly from the OpenAlex API on 17 August 2026, and the institutional leaderboard comes with a verified defect that means you cannot cite it as printed.
The national figures, year by year
| Publication year | Works with a Nigerian institutional affiliation | Source and date read |
|---|---|---|
| 2015 | 16,560 | OpenAlex API, 17 Aug 2026 |
| 2016 | 18,064 | OpenAlex API, 17 Aug 2026 |
| 2017 | 21,150 | OpenAlex API, 17 Aug 2026 |
| 2018 | 25,271 | OpenAlex API, 17 Aug 2026 |
| 2019 | 30,955 | OpenAlex API, 17 Aug 2026 |
| 2020 | 39,984 | OpenAlex API, 17 Aug 2026 |
| 2021 | 42,779 | OpenAlex API, 17 Aug 2026 |
| 2022 | 42,400 | OpenAlex API, 17 Aug 2026 |
| 2023 | 45,115 | OpenAlex API, 17 Aug 2026 |
| 2024 | 46,381 | OpenAlex API, 17 Aug 2026 |
Three features of that series are worth stating carefully before anyone quotes it.
The growth is real and large. 2024 is 2.8 times the 2015 figure, and the steepest single jump is 2019 to 2020, where output rose by roughly nine thousand works in one year.
It is not monotonic. 2022 came in at 42,400 against 42,779 for 2021 — a small decline. If you present this series as uninterrupted growth, a careful reader will find the one year that is not.
The most recent years are not comparable. The same query returned 58,829 works for 2025 and 55,537 for 2026 — a year that was seven and a half months old when the query ran. A 2026 count already approaching the 2025 total in August is telling you about how records enter the index, not about Nigerian productivity. Use 2024 as your most recent settled year, and say why.
Open access: four fifths of it
Of the 46,381 works indexed for 2024, 37,165 are flagged open access — 80.1 per cent.
That figure has a direct practical consequence for a final year student whose university library subscription is thin: roughly four in five recent Nigerian-affiliated papers should be readable without paying for them. It does not mean one search box will surface them all, which is why the databases you search and the way you record those searches matter — a point covered in the guide to writing Chapter Two.
The institutional table, and why it carries a warning
OpenAlex lists 269 Nigerian institutions of type “education”. Ranked by the works count recorded on each institution’s own record:
| Institution | Works count | Citations | Citations per work |
|---|---|---|---|
| University of Ibadan | 52,306 | 1,472,499 | 28.2 |
| University of Nigeria | 38,144 | 756,538 | 19.8 |
| Edo State University Uzairue | 31,682 | 28,873 | 0.9 |
| University of Lagos | 28,403 | 513,424 | 18.1 |
| Obafemi Awolowo University | 28,017 | 599,259 | 21.4 |
| Ahmadu Bello University | 25,037 | 527,031 | 21.1 |
Read from the OpenAlex institutions endpoint on 17 August 2026. Citations per work computed from the two preceding columns.
Read down the last column. Five of the six sit between 18 and 28 citations per work, which is a normal range for a large Nigerian university. One sits at 0.9 — roughly twenty times below its neighbours. That is not a finding about research quality. It is a signal that the row is wrong.
The defect, and how to check it yourself in two minutes
Every institution record carries a headline works count. You can also ask the works endpoint how many works it holds for that same institution. The two should broadly agree. Re-deriving each figure that way, on the same day, gives this:
| Institution | Institution record says | Works endpoint returns | Difference |
|---|---|---|---|
| University of Ibadan | 52,306 | 46,723 | −11% |
| University of Nigeria | 38,144 | 33,393 | −12% |
| University of Lagos | 28,403 | 25,531 | −10% |
| Edo State University Uzairue | 31,682 | 2,199 | −93% |
Three of the four cluster between −10 and −12 per cent, which is consistent with ordinary indexing lag and is nothing to worry about. The fourth is a 14.4-fold discrepancy.
To be clear about what this is not: the institution is real. The ROR registry, the authoritative register of research organisation identifiers, confirms that ror.org/049ajby27 is Edo State University Uzairue — also known as Edo University Iyamho — established in 2016, located in Auchi, Nigeria, with active status. A young university founded in 2016 has not published 31,682 works. This is a counting artefact in the index, not a fake record and not a claim about the institution.
The rule that follows: an institutional works count is a starting point, never a citable figure. If your Chapter One needs to say how much a named Nigerian university publishes, re-derive the number from the works endpoint, and state the date you did it.
How to cite these figures without overstating them
- Name the source and the date you read it. These are live indexes, not annual publications. “OpenAlex, queried 17 August 2026” is the honest form.
- Stop at 2024. Say explicitly that later years are incomplete, and if you show a partial figure, label it.
- Prefer national counts to institutional ones. The country filter behaved consistently in every check above. The institution records did not.
- Do not turn a count into a quality claim. Volume says nothing about whether research is good, and it is heavily driven by institution size and discipline mix. A panel will make that point if you do not.
- Never mix vintages. A 2024 count from one source beside a 2019 count from another does not belong in one sentence without both dates attached — the same discipline that applies to the enrolment figures in how many university students there are in Nigeria.
What this is actually useful for in your project
Two things, and neither is padding your background with a big number.
A rationale. If Nigerian output nearly tripled in a decade while the literature on your specific topic stayed thin, that contrast is a real justification for your study and it is far stronger than an unsupported assertion that “few studies have been conducted”. Where that argument belongs is set out in the guide to writing Chapter One.
A measure that is not the one everybody else uses. Output is the third distinct measure of the Nigerian university system, alongside the institution count covered in how many NUC-accredited universities there are and the enrolment figures. Counting institutions, counting students and counting publications answer three different questions, and a background section that conflates them is a background section a panel will unpick.
What none of it replaces is reading the papers. A count tells you how much exists; only reading tells you what it found — and that distinction is exactly what a panel is testing when it asks what a source you cited actually concluded.
Keep every figure attached to the source you read it from
Tesify holds your chapters in the structure your department expects and keeps each citation tied to the source you actually opened, so a figure in Chapter One can still be traced at the defence. Over 9,000 students have used it to write more than 15,000 chapters, and every word is still written by you.
Frequently asked questions
How many research papers do Nigerian institutions publish each year?
46,381 works with a Nigerian institutional affiliation were indexed for 2024, according to an OpenAlex query run on 17 August 2026. The 2015 figure was 16,560, so output rose 2.8-fold across the decade.
Which Nigerian university publishes the most research?
University of Ibadan leads, with 52,306 works on its OpenAlex record and 46,723 returned by the works endpoint. Treat the rest of the leaderboard carefully — at least one high-ranked row is inflated roughly fourteenfold.
Why does Edo State University Uzairue rank so high?
Because of a counting artefact. Its institution record shows 31,682 works while the works endpoint returns 2,199, a 14.4-fold gap, and its citations-per-work ratio of 0.9 is about twenty times below comparable universities. ROR confirms it is a real university established in 2016 in Auchi, so the institution is genuine and the number is not.
What proportion of Nigerian research is open access?
80.1 per cent of the 46,381 works indexed for 2024 are flagged open access — 37,165 of them. That is the practical reason a student with a thin library subscription can still build a current literature review.
Can I cite OpenAlex in my project?
Yes, as a database, naming it and the date you queried it. What you should not do is cite an institutional works count you have not re-derived from the works endpoint.
Why is the 2026 figure almost as high as 2025?
Because indexing is not synchronised with the calendar and recent years keep changing. A partial-year count approaching a full previous year is an artefact of how records enter the index, so use 2024 as your most recent settled figure.
Did Nigerian research output ever fall?
Once in the decade shown: 2022 returned 42,400 works against 42,779 for 2021. It is a small dip, but present it accurately rather than describing the series as uninterrupted growth.
Does a high publication count mean a university is better?
No. Count measures volume, not quality, and it is strongly influenced by institution size and discipline mix. Sliding from one to the other is the first thing a panel will pick up.
How do I check an institutional figure myself?
Query the works endpoint for that institution and compare the total against the number on the institution record. If they disagree by much more than about ten per cent, use the works-endpoint figure and say so.
How many universities does OpenAlex list for Nigeria?
269 Nigerian institutions of type “education” as at 17 August 2026. That is an index count and is not the same thing as the number of NUC-accredited universities, which is counted on a different basis.
Where do these numbers belong in my project?
In Chapter One, as background establishing why the study matters, or in Chapter Two as context for the state of the literature. They are not findings, so they do not belong in Chapter Four.
