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Topic · Reproductive Medicine

Ovarian function and disorders

Ovarian function and disorders is a research topic within Reproductive Medicine. Science Explorer counts 48k research works in it since 1950. 10.0% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the diagnosis and management of polycystic ovary syndrome (PCOS), covering topics such as ovarian reserve, insulin resistance, metabolic syndrome, androgen excess, fertility, anti-Mullerian hormone, cardiovascular disease, obesity, and infertility. The papers discuss various aspects of PCOS including its impact on long-term health risks, diagnostic criteria, treatment options, and the association with other conditions such as cardiovascular disease and metabolic syndrome.

  • Polycystic Ovary Syndrome
  • Ovarian Reserve
  • Insulin Resistance
  • Metabolic Syndrome
  • Androgen Excess
  • Fertility
  • Anti-Mullerian Hormone
  • Cardiovascular Disease
  • Obesity
  • Infertility
Research works
48k
fractional, since 1950
In the world top 10%
4.8k
per year above
Top-10% rate
10.0%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+27%
the tick is no change
Largest producer
China
31% of the 10 largest, 2022-now
Ovarian function and disorders

This ranks research output and citation impact. It says nothing about the quality of diagnosis, treatment or care.

Which countries lead Ovarian function and disorders research?

By volume, China and the United States publish the most (2.2k and 1.5k works in 2022-now).

By volume, 2022-now

  1. 1 China 2.2k works
  2. 2 United States 1.5k works
  3. 3 India 1k works
  4. 4 Türkiye 463 works
  5. 5 Iran 463 works
  6. 6 Italy 322 works
  7. 7 United Kingdom 312 works
  8. 8 Brazil 294 works
  9. 9 Spain 225 works
  10. 10 Egypt 223 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 31.3%United States: 21.1%India: 14.5%Türkiye: 6.7%6 others listed: 26.5%31%largest
China2,172 · 31.3%United States1,463 · 21.1%India1,008 · 14.5%Türkiye463 · 6.7%6 others listed1,840 · 26.5%

Shares of the rows listed above, not of the whole node.

Which institutions lead Ovarian function and disorders research?

By volume in 2022-now, Harvard University publishes the most Ovarian function and disorders research, followed by Shanghai Jiao Tong University and Peking University.

By volume, 2022-now

  1. 1 Harvard UniversityUnited States 83 works
  2. 2 Shanghai Jiao Tong UniversityChina 75 works
  3. 3 Peking UniversityChina 68 works
  4. 4 Zhengzhou UniversityChina 57 works
  5. 5 All India Institute of Medical SciencesIndia 52 works
  6. 6 Zhejiang UniversityChina 52 works
  7. 7 Sun Yat-sen UniversityChina 52 works
  8. 8 Sichuan UniversityChina 51 works
  9. 9 Nanjing Medical UniversityChina 50 works
  10. 10 Tehran University of Medical SciencesIran 49 works

Who are the leading researchers in Ovarian function and disorders?

The most-cited researchers publishing on Ovarian function and disorders include Douglas G. Altman, Walter Churchill Willett and Mark J. Daly.

  1. 1 Douglas G. Altman United Kingdom 862k citations
  2. 2 Walter Churchill Willett United States 411k citations
  3. 3 Mark J. Daly United States 403k citations
  4. 4 Jun Wang China 340k citations
  5. 5 Gordon Henry Guyatt Canada 315k citations
  6. 6 Luigi Ferrucci United States 281k citations
  7. 7 Frank B. Hu United States 281k citations
  8. 8 Yousef Saleh Khader Jordan 274k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

What are the most cited papers in Ovarian function and disorders?

The most cited paper in Ovarian function and disorders is "Variations in the Pattern of Pubertal Changes in Boys" (William A. Marshall, J. M. Tanner, 1970), with 5,218 citations. Next come "A Critical Evaluation of Simple Methods for the Estimation of Free Testosterone in Serum" (3,751) and "Clinical longitudinal standards for height, weight, height velocity, weight velocity, and stages of puberty." (3,179).

Most cited papers
#PaperReleasedCitations
1 Variations in the Pattern of Pubertal Changes in Boys William A. Marshall, J. M. Tanner · Archives of Disease in Childhood Open access Feb 1970 5,218
2 A Critical Evaluation of Simple Methods for the Estimation of Free Testosterone in Serum Alex T. Vermeulen, L. Verdonck, Jean‐Marc Kaufman · The Journal of Clinical Endocrinology & Metabolism Oct 1999 3,751
3 Clinical longitudinal standards for height, weight, height velocity, weight velocity, and stages of puberty. J. M. Tanner, R. H. Whitehouse · Archives of Disease in Childhood Open access Mar 1976 3,179
4 The Diagnosis of Polycystic Ovary Syndrome during Adolescence Selma Feldman Witchel, Sharon E. Oberfield, Robert L. Rosenfield et al. · Hormone Research in Paediatrics Open access 2015 3,108
5 The Prevalence and Features of the Polycystic Ovary Syndrome in an Unselected Population Ricardo Azziz, Keslie S. Woods, Rosario Reyna et al. · The Journal of Clinical Endocrinology & Metabolism Open access Jun 2004 2,738
All 97 most cited papers, with filters and sorting

Where is Ovarian function and disorders research done?

The largest centres of Ovarian function and disorders research in 2022-now are Beijing (China), Tehran (Iran), Shanghai (China) and Guangzhou (China). Among places with at least 20 works in it, it is an unusually large share of all research in Yazd and Wardha.

Largest cities, 2022-now

  1. 1 BeijingChina 237 works
  2. 2 TehranIran 180 works
  3. 3 ShanghaiChina 176 works
  4. 4 GuangzhouChina 148 works
  5. 5 IstanbulTürkiye 139 works
  6. 6 LondonUnited Kingdom 109 works
  7. 7 New YorkUnited States 105 works
  8. 8 ChengduChina 100 works
  9. 9 New DelhiIndia 100 works
  10. 10 HangzhouChina 99 works

Where it is the local speciality

  1. YazdIR · 22.7 works12×
  2. WardhaIN · 23.2 works9.2×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Ovarian function and disorders than the world average.

See Ovarian function and disorders on the map

Where is the best place to study Ovarian function and disorders?

Among universities, judged by research, Erasmus University Rotterdam, Harvard University and Peking University score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%20%40%mean 19.98%fractional works in this field (log) →share of work in the world top 10% →University of OuluErasmus University R…Peking UniversityHarvard University
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1Erasmus University RotterdamNetherlands 78.724.9%5.6×27 +78.6%
2Harvard UniversityUnited States 71.311.8%2.9×83 +14.5%
3Peking UniversityChina 69.616.0%3.7×68 +59.9%
4University of OuluFinland 69.628.7%5.1×13 +62.3%
5Monash UniversityAustralia 69.419.1%4.3×38 -5.4%
6Imperial College LondonUnited Kingdom 68.223.7%2.4×22 -1.7%
7Karolinska InstitutetSweden 67.823.1%4.6×24 +7.2%
8University of CopenhagenDenmark 67.419.0%3.5×30 +0.4%
9Tehran University of Medical SciencesIran 66.515.6%9.0×49 +39.1%
10Huazhong University of Science and TechnologyChina 66.517.9%2.9×49 +51.2%

Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Ovarian function and disorders, country by country

Is Ovarian function and disorders research growing?

Output in 2022-2025 was 27% higher than in 2018-2021, peaking in 2025. The fastest-growing topics are Ovarian function and disorders.

still counting19801990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Ovarian function and disorders as a percentage of every work published that year, 0.040% in 2024.

still counting0.025%0.050%0.075%Ovarian function and disorders0.045% in 202519801990200020102020

Fractional works of Ovarian function and disorders over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting5%10%15%Ovarian function and disorders10.3% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

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