World's Best Scientists 2026 revealed!
Khalid S. Khan

Khalid S. Khan

Award Badge
Medicine
Spain
2023

D-Index & Metrics

Medicine

D-Index
120
Citations
56507
World Ranking
3733
National Ranking
51

Khalid S. Khan publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Khalid S. Khan sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 610 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 810 publications — 88th percentile

88% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Khalid S. Khan D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Khalid S. Khan sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 399 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 120 D-Index — 82nd percentile

82% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Research.com Recognitions

  • 2023 - Research.com Medicine in Spain Leader Award

Overview

Khalid S. Khan is affiliated with the University of Granada in Spain. The main field of their research is Medicine, with a focus on several subfields including Public Health, Environmental and Occupational Health, General Health Professions, Obstetrics and Gynecology, Reproductive Medicine, and Pediatrics, Perinatology and Child Health.

The scientist's recent publications cover a range of topics and have appeared in diverse research venues. Notable recent papers include:

  • Mortality outcomes with hydroxychloroquine and chloroquine in COVID-19 from an international collaborative meta-analysis of randomized trials, 2021, Nature Communications
  • Worldwide Prevalence of Intimate Partner Violence in Pregnancy. A Systematic Review and Meta-Analysis, 2021, Frontiers in Public Health
  • Physician-Patient Language Discordance and Poor Health Outcomes: A Systematic Scoping Review, 2021, Frontiers in Public Health
  • Mortality outcomes with hydroxychloroquine and chloroquine in COVID-19: an international collaborative meta-analysis of randomized trials, 2020, bioRxiv (Cold Spring Harbor Laboratory)
  • Virtual reality for acute pain in outpatient hysteroscopy: a randomised controlled trial, 2020, BJOG An International Journal of Obstetrics & Gynaecology

Frequently collaborating co-authors include:

  • Aurora Bueno-Cavanillas
  • Javier Zamora
  • Shakila Thangaratinam
  • Naomi Cano-Ibáñez
  • Marta Maes-Carballo

In terms of publication venues, the scientist commonly publishes in the following journals:

  • Medicina de Familia SEMERGEN
  • BJOG An International Journal of Obstetrics & Gynaecology
  • BMJ Open
  • Faculty Opinions - Post-Publication Peer Review of the Biomedical Literature
  • International Journal of Environmental Research and Public Health

The main topics covered in their research include:

  • Ethics in Clinical Research
  • Meta-analysis and systematic reviews
  • Endometriosis Research and Treatment
  • Health Systems, Economic Evaluations, Quality of Life
  • Clinical practice guidelines implementation
  • Pregnancy and preeclampsia studies
  • Ovarian function and disorders

Best Publications

  • WHO analysis of causes of maternal death: a systematic review

    Khalid S. Khan;Daniel Wojdyla;Lale Say;A. Metin Gulmezoglu

  • Five steps to conducting a systematic review

    Khalid S Khan;Regina Kunz;Jos Kleijnen;Gerd Antes

  • Effects of interventions in pregnancy on maternal weight and obstetric outcomes: meta-analysis of randomised evidence

    S. Thangaratinam;E. Rogozińska;K. Jolly;S. Glinkowski

  • Use of uterine artery Doppler ultrasonography to predict pre-eclampsia and intrauterine growth restriction: a systematic review and bivariable meta-analysis

    Jeltsje S. Cnossen;Rachel K. Morris;Gerben ter Riet;Gerben ter Riet;Ben W.J. Mol

  • Comparison of treatment effects between animal experiments and clinical trials: systematic review

    Pablo Perel;Ian Roberts;Emily Sena;Philipa Wheble

  • What is the evidence that postgraduate teaching in evidence based medicine changes anything? A systematic review

    Arri Coomarasamy;Khalid S Khan

  • Systematic reviews to support evidence-based medicine.

    Khalid Khan;Regina Kunz;Jos Kleijnen;Gerd Antes

  • WHO systematic review of prevalence of chronic pelvic pain: a neglected reproductive health morbidity.

    Pallavi Latthe;Manish Latthe;Lale Say;Metin Gülmezoglu

  • Factors predisposing women to chronic pelvic pain: systematic review

    Pallavi Latthe;Luciano Mignini;Richard Gray;Robert Hills

  • Evaluation of diagnostic tests when there is no gold standard. A review of methods.

    A W S Rutjes;J B Reitsma;A Coomarasamy;K S Khan

  • The educational effects of portfolios on undergraduate student learning: A Best Evidence Medical Education (BEME) systematic review. BEME Guide No. 11

    Sharon Buckley;Jamie Coleman;Ian Davison;Khalid S Khan

  • Accuracy of hysteroscopy in the diagnosis of endometrial cancer and hyperplasia: a systematic quantitative review

    T. Justin Clark;Doris Voit;Janesh K. Gupta;Christopher Hyde

  • Strength of Association Between Umbilical Cord pH and Perinatal and Long-term Outcomes: Systematic Review and Meta-analysis

    G.L. Malin;R.K. Morris;K.S. Khan

  • Effect of diet and physical activity based interventions in pregnancy on gestational weight gain and pregnancy outcomes: meta-analysis of individual participant data from randomised trials

    Ewelina Rogozinska;Nadine Marlin;Ana Pilar Betran;Arne Astrup

  • Pulse oximetry screening for critical congenital heart defects in asymptomatic newborn babies: a systematic review and meta-analysis.

    Shakila Thangaratinam;Kiritrea Brown;Javier Zamora;Khalid S Khan

  • Asymmetric funnel plots and publication bias in meta-analyses of diagnostic accuracy

    Fujian Song;Khalid S Khan;Jacqueline Dinnes;Alex J Sutton

  • Cognitive, motor, behavioural and academic performances of children born preterm: a meta-analysis and systematic review involving 64 061 children

    J Allotey;J Zamora;F Cheong-See;M Kalidindi

  • Accuracy of cervicovaginal fetal fibronectin test in predicting risk of spontaneous preterm birth: systematic review

    Honest Honest;Lucas M Bachmann;Janesh K Gupta;Jos Kleijnen

  • A review of solutions for diagnostic accuracy studies with an imperfect or missing reference standard

    Johannes B. Reitsma;Anne W.S. Rutjes;Khalid S. Khan;Arri Coomarasamy

  • The importance of quality of primary studies in producing unbiased systematic reviews.

    Khalid S. Khan;Salim Daya;Alejandro R. Jadad

Frequent Co-Authors

Javier Zamora
Javier Zamora University of Birmingham
Ben Willem J. Mol
Ben Willem J. Mol Monash University
Jos Kleijnen
Jos Kleijnen Kleijnen Systematic Reviews (United Kingdom)
Mark D. Kilby
Mark D. Kilby University of Birmingham
Siladitya Bhattacharya
Siladitya Bhattacharya University of Aberdeen
Stephen C. Robson
Stephen C. Robson Newcastle University
Martin S. Hirsch
Martin S. Hirsch Harvard Medical School
Johan L. Severens
Johan L. Severens Erasmus University Rotterdam
Richard J McManus
Richard J McManus University of Oxford
Jonathan J Deeks
Jonathan J Deeks University of Birmingham

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