Science Explorer Back to mapMap
Discussion
Topic · Public Health, Environmental and Occupational Health

Reproductive Health and Contraception

Reproductive Health and Contraception is a research topic within Public Health, Environmental and Occupational Health. Science Explorer counts 27k 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 various aspects of contraception, unintended pregnancy prevention, and reproductive health. It covers topics such as the effectiveness and safety of different contraceptive methods, global trends in unintended pregnancy, the impact of contraception on maternal and child health, and societal attitudes towards abortion and family planning. The papers also discuss the use of emergency contraception, long-acting reversible contraception, and the implications of contraceptive failure.

  • Contraception
  • Unintended Pregnancy
  • Abortion
  • Hormonal Contraceptives
  • Reproductive Health
  • Family Planning
  • Emergency Contraception
  • Long-Acting Reversible Contraception
  • Pregnancy Intention
  • Contraceptive Failure
Research works
27k
fractional, since 1950
In the world top 10%
2.7k
per year above
Top-10% rate
10.0%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+20%
the tick is no change
Largest producer
United States
52% of the 10 largest, 2022-now
Reproductive Health and Contraception

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

Which countries lead Reproductive Health and Contraception research?

By volume, the United States and India publish the most (2.2k and 353 works in 2022-now).

By volume, 2022-now

  1. 1 United States 2.2k works
  2. 2 India 353 works
  3. 3 Brazil 333 works
  4. 4 United Kingdom 326 works
  5. 5 China 231 works
  6. 6 Australia 186 works
  7. 7 Ethiopia 177 works
  8. 8 Canada 161 works
  9. 9 Türkiye 138 works
  10. 10 Nigeria 136 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.

United States: 52.0%India: 8.3%Brazil: 7.8%United Kingdom: 7.7%6 others listed: 24.2%52%largest
United States2,208 · 52.0%India353 · 8.3%Brazil333 · 7.8%United Kingdom326 · 7.7%6 others listed1,029 · 24.2%

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

Which institutions lead Reproductive Health and Contraception research?

By volume in 2022-now, University of North Carolina at Chapel Hill publishes the most Reproductive Health and Contraception research, followed by Harvard University and University of California, San Francisco.

By volume, 2022-now

  1. 1 University of North Carolina at Chapel HillUnited States 88 works
  2. 2 Harvard UniversityUnited States 61 works
  3. 3 University of California, San FranciscoUnited States 50 works
  4. 4 Johns Hopkins UniversityUnited States 43 works
  5. 5 Oregon Health & Science UniversityUnited States 31 works
  6. 6 University of MichiganUnited States 30 works
  7. 7 Indiana UniversityUnited States 28 works
  8. 8 University of WashingtonUnited States 27 works
  9. 9 University of UtahUnited States 27 works
  10. 10 The University of Texas at AustinUnited States 26 works

Who are the leading researchers in Reproductive Health and Contraception?

The most-cited researchers publishing on Reproductive Health and Contraception include Ali H. Mokdad, Walter Churchill Willett and Zulfiqar Ahmed Bhutta.

  1. 1 Ali H. Mokdad United States 429k citations
  2. 2 Walter Churchill Willett United States 411k citations
  3. 3 Zulfiqar Ahmed Bhutta Pakistan 371k citations
  4. 4 Yousef Saleh Khader Jordan 274k citations
  5. 5 Patrick M. Bossuyt Netherlands 270k 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 Reproductive Health and Contraception?

The most cited paper in Reproductive Health and Contraception is "The Increasing Trend in Caesarean Section Rates: Global, Regional and National Estimates: 1990-2014" (Ana Pilar Betrán, Jianfeng Ye, Anne-Beth Moller et al., 2016), with 2,269 citations. Next come "Sexually transmitted diseases treatment guidelines" (2,078) and "Declines in Unintended Pregnancy in the United States, 2008–2011" (2,002).

Most cited papers
#PaperReleasedCitations
1 The Increasing Trend in Caesarean Section Rates: Global, Regional and National Estimates: 1990-2014 Ana Pilar Betrán, Jianfeng Ye, Anne-Beth Moller et al. · PLoS ONE Open access 5 Feb 2016 2,269
2 Sexually transmitted diseases treatment guidelines Gale R. Burstein, Kimberly Workowski · Current Opinion in Pediatrics Aug 2003 2,078
3 Declines in Unintended Pregnancy in the United States, 2008–2011 Lawrence B. Finer, Mia R. Zolna · New England Journal of Medicine Open access 3 Mar 2016 2,002
4 Recommendations from the international evidence‐based guideline for the assessment and management of polycystic ovary syndrome Helena Jane Teede, Marie L Misso, Michael Costello et al. · Clinical Endocrinology Open access 19 Jul 2018 1,835
5 Maternal age and fetal loss: population based register linkage study Anne‐Marie Nybo Andersen · BMJ Open access 24 Jun 2000 1,706
All 99 most cited papers, with filters and sorting

Where is Reproductive Health and Contraception research done?

The largest centres of Reproductive Health and Contraception research in 2022-now are New York (United States), London (United Kingdom), Chapel Hill (United States) and Washington D.C. (United States). Among places with at least 20 works in it, it is an unusually large share of all research in Gonder.

Largest cities, 2022-now

  1. 1 New YorkUnited States 139 works
  2. 2 LondonUnited Kingdom 117 works
  3. 3 Chapel HillUnited States 89 works
  4. 4 Washington D.C.United States 70 works
  5. 5 BostonUnited States 69 works
  6. 6 San FranciscoUnited States 66 works
  7. 7 CambridgeUnited States 62 works
  8. 8 São PauloBrazil 58 works
  9. 9 MelbourneAustralia 55 works
  10. 10 BaltimoreUnited States 55 works

Where it is the local speciality

  1. GonderET · 26.2 works30×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Reproductive Health and Contraception than the world average.

See Reproductive Health and Contraception on the map

Where is the best place to study Reproductive Health and Contraception?

Among universities, judged by research, University of Gondar, Karolinska Institutet and University of North Carolina at Chapel Hill score highest, combining citation excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%10%20%30%mean 17.14%fractional works in this field (log) →share of work in the world top 10% →University of GondarKarolinska InstitutetJohns Hopkins Univer…University of North …
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.

Citation 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
1University of GondarEthiopia 75.925.8%33.2×26 +58.8%
2Karolinska InstitutetSweden 66.619.1%7.1×22 +19.9%
3University of North Carolina at Chapel HillUnited States 64.07.9%9.1×88 +49.6%
4Johns Hopkins UniversityUnited States 63.518.1%5.1×43 +13.1%
5Harvard UniversityUnited States 63.111.4%3.5×61 +38.3%
6London School of Hygiene & Tropical MedicineUnited Kingdom 59.418.3%16.9×14 -8.9%
7University of OxfordUnited Kingdom 58.424.1%2.0×15 +61.9%
8University of California, San FranciscoUnited States 58.316.3%12.9×50 -23.5%
9Makerere UniversityUganda 58.315.3%13.0×12 +54.3%
10University of GhanaGhana 57.815.1%14.1×20 +91.8%

Universities only. The score blends citation 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 Reproductive Health and Contraception, country by country

Is Reproductive Health and Contraception research growing?

Output in 2022-2025 was 20% higher than in 2018-2021, peaking in 2025. The fastest-growing topics are Reproductive Health and Contraception.

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 Reproductive Health and Contraception as a percentage of every work published that year, 0.025% in 2024.

still counting0.020%0.040%0.060%Reproductive Health and Contraception0.026% in 202519801990200020102020

Fractional works of Reproductive Health and Contraception 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%Reproductive Health and Contraception10.2% 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.

Discussion

Ask a question or share a note about Reproductive Health and Contraception. Keep it to the research: no personal attacks, advertising or links. Any reader can report a post, which collapses it for everyone until it is opened.