World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Medicine 85 14464 13620 1332 1275 377 31919

Stanley Zammit publications per year

The chart shows the history of publications by Stanley Zammit between 2000 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Stanley Zammit published across 26 years, from 2000 to 2025, averaging 16.3 papers a year. Output peaked at 35 publications in 2021. 34 of the 425 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 2000 to 2025. Vertical axis: number of publications, 0 to 35. Peak 35 publications in 2021. 2000: 1 publication 2001: 4 publications 2002: 8 publications 2003: 10 publications 2004: 12 publications 2005: 6 publications 2006: 8 publications 2007: 10 publications 2008: 14 publications 2009: 7 publications 2010: 8 publications 2011: 12 publications 2012: 19 publications 2013: 26 publications 2014: 25 publications 2015: 21 publications 2016: 18 publications 2017: 18 publications 2018: 33 publications 2019: 32 publications 2020: 31 publications 2021: 35 publications 2022: 16 publications 2023: 17 publications 2024: 20 publications 2025: 14 publications
2000 2025

425 publications in total across all disciplines

View publications per year as a table
Stanley Zammit: publications per year, 2000 to 2025
Year Publications
2000 1
2001 4
2002 8
2003 10
2004 12
2005 6
2006 8
2007 10
2008 14
2009 7
2010 8
2011 12
2012 19
2013 26
2014 25
2015 21
2016 18
2017 18
2018 33
2019 32
2020 31
2021 35
2022 16
2023 17
2024 20
2025 14
Total 425
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Stanley Zammit 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 Stanley Zammit sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 86 bars. Horizontal axis: publications, 101–120 to 1,796+. Vertical axis: number of scientists, 0 to 922. Most scientists, 922, have 341–360 publications. The last bar groups every scientist with 1,796 publications or more. The highlighted bar, 361–380 publications, is where this scientist sits. 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
101–120 publications 1,796+

This scientist: 377 publications — 33rd percentile

33% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Medicine scientists by publication count, Research.com 2026 ranking edition. Based on 20,134 ranked scientists.
Publications Scientists This scientist
101–120 5
121–140 26
141–160 73
161–180 155
181–200 230
201–220 363
221–240 487
241–260 545
261–280 722
281–300 768
301–320 834
321–340 895
341–360 922
361–380 838 377
381–400 861
401–420 918
421–440 806
441–460 771
461–480 751
481–500 713
501–520 617
521–540 610
541–560 537
561–580 504
581–600 509
601–620 396
621–640 386
641–660 371
661–680 340
681–700 336
701–720 307
721–740 259
741–760 230
761–780 228
781–800 217
801–820 204
821–840 186
841–860 177
861–880 155
881–900 139
901–920 145
921–940 116
941–960 133
961–980 91
981–1,000 96
1,001–1,020 77
1,021–1,040 70
1,041–1,060 63
1,061–1,080 77
1,081–1,100 49
1,101–1,120 54
1,121–1,140 49
1,141–1,160 51
1,161–1,180 35
1,181–1,200 39
1,201–1,220 26
1,221–1,240 37
1,241–1,260 36
1,261–1,280 27
1,281–1,300 32
1,301–1,320 28
1,321–1,340 17
1,341–1,360 30
1,361–1,380 28
1,381–1,400 17
1,401–1,420 21
1,421–1,440 15
1,441–1,460 12
1,461–1,480 12
1,481–1,500 18
1,501–1,520 14
1,521–1,540 17
1,541–1,560 15
1,561–1,580 6
1,581–1,600 2
1,601–1,620 12
1,621–1,640 11
1,641–1,660 8
1,661–1,680 5
1,681–1,700 5
1,701–1,720 10
1,721–1,740 12
1,741–1,760 14
1,761–1,780 6
1,781–1,795 5
1,796+ 100
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Stanley Zammit 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 Stanley Zammit sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 75 bars. Horizontal axis: D-Index, 70–71 to 217+. Vertical axis: number of scientists, 0 to 1,027. Most scientists, 1,027, have 82–83 D-Index. The last bar groups every scientist with 217 D-Index or more. The highlighted bar, 84–85 D-Index, is where this scientist sits. 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
70–71 D-Index 217+

This scientist: 85 D-Index — 29th percentile

29% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Medicine scientists by D-index, Research.com 2026 ranking edition. Based on 20,134 ranked scientists.
D-Index Scientists This scientist
70–71 226
72–73 391
74–75 574
76–77 730
78–79 891
80–81 972
82–83 1,027
84–85 1,003 85
86–87 960
88–89 970
90–91 922
92–93 839
94–95 808
96–97 779
98–99 668
100–101 611
102–103 630
104–105 513
106–107 541
108–109 445
110–111 429
112–113 399
114–115 393
116–117 318
118–119 302
120–121 287
122–123 255
124–125 256
126–127 252
128–129 230
130–131 179
132–133 168
134–135 163
136–137 159
138–139 134
140–141 134
142–143 118
144–145 109
146–147 106
148–149 74
150–151 79
152–153 80
154–155 87
156–157 57
158–159 74
160–161 69
162–163 60
164–165 53
166–167 39
168–169 42
170–171 32
172–173 39
174–175 40
176–177 28
178–179 19
180–181 23
182–183 31
184–185 18
186–187 20
188–189 22
190–191 13
192–193 21
194–195 12
196–197 12
198–199 14
200–201 15
202–203 13
204–205 10
206–207 8
208–209 4
210–211 12
212–213 11
214–215 10
216 4
217+ 98
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Overview

Stanley Zammit is affiliated with the University of Bristol in the United Kingdom. Their research primarily spans the fields of Medicine and Psychology, with particular emphasis on Health, Toxicology and Mutagenesis, Clinical Psychology, Psychiatry and Mental Health, Pediatrics, Perinatology and Child Health, and Biological Psychiatry.

The main topics covered in their research include:

  • Health, Environment, Cognitive Aging
  • Tryptophan and brain disorders
  • Birth, Development, and Health
  • Schizophrenia research and treatment
  • Genetic Associations and Epidemiology
  • Mental Health Research Topics
  • Bipolar Disorder and Treatment

Zammit has published extensively in several academic venues. The most frequent publication venues are:

  • Schizophrenia Bulletin
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Psychological Medicine
  • BJPsych Open
  • Schizophrenia Research

Some notable recent publications include:

  • Mental health before and during the COVID-19 pandemic in two longitudinal UK population cohorts, 2020, The British Journal of Psychiatry
  • Mental health in UK Biobank - development, implementation and results from an online questionnaire completed by 157 366 participants: a reanalysis, 2020, BJPsych Open
  • Association of High-Potency Cannabis Use With Mental Health and Substance Use in Adolescence, 2020, JAMA Psychiatry
  • A Population-Based Cohort Study Examining the Incidence and Impact of Psychotic Experiences From Childhood to Adulthood, and Prediction of Psychotic Disorder, 2020, American Journal of Psychiatry
  • Development of Proteomic Prediction Models for Transition to Psychotic Disorder in the Clinical High-Risk State and Psychotic Experiences in Adolescence, 2020, JAMA Psychiatry

Stanley Zammit has collaborated frequently with several researchers in their field. The most frequent co-authors include:

  • Hannah Jones
  • Jon Heron
  • Mary Cannon
  • Golam M. Khandaker
  • Peter B. Jones

Best Publications

  • Cannabis use and risk of psychotic or affective mental health outcomes: a systematic review

    Theresa H. M. Moore;Stanley Zammit;Stanley Zammit;Anne Lingford-Hughes;Thomas R. E. Barnes

  • Genetic relationship between five psychiatric disorders estimated from genome-wide SNPs

    S. Hong Lee;Stephan Ripke;Stephan Ripke;Benjamin M. Neale;Benjamin M. Neale;Stephen V. Faraone

  • Identification of loci associated with schizophrenia by genome-wide association and follow-up

    Michael C. O'Donovan;Nicholas Craddock;Nadine Norton;Hywel Williams

  • Self reported cannabis use as a risk factor for schizophrenia in Swedish conscripts of 1969: historical cohort study

    Stanley Zammit;Peter Allebeck;Sven Andreasson;Ingvar Lundberg

  • Subcortical brain volume differences in participants with attention deficit hyperactivity disorder in children and adults: a cross-sectional mega-analysis

    Martine Hoogman;Janita Bralten;Derrek P. Hibar;Maarten Mennes

  • Association of Serum Interleukin 6 and C-Reactive Protein in Childhood With Depression and Psychosis in Young Adult Life: A Population-Based Longitudinal Study

    Golam M. Khandaker;Rebecca M. Pearson;Stanley Zammit;Stanley Zammit;Glyn Lewis;Glyn Lewis

  • Psychiatric genome-wide association study analyses implicate neuronal, immune and histone pathways

    Colm O'Dushlaine;Lizzy Rossin;Phil H. Lee;Laramie Duncan;Laramie Duncan

  • Evidence for causal effects of lifetime smoking on risk for depression and schizophrenia: a Mendelian randomisation study

    Robyn E Wootton;Rebecca C Richmond;Bobby G Stuijfzand;Rebecca B Lawn

  • A Longitudinal Study of Premorbid IQ Score and Risk of Developing Schizophrenia,Bipolar Disorder, Severe Depression, and Other Nonaffective Psychoses

    Stanley Zammit;Peter Allebeck;Anthony S. David;Christina Dalman

  • Prospective Study of Peer Victimization in Childhood and Psychotic Symptoms in a Nonclinical Population at Age 12 Years

    Andrea Schreier;Dieter Wolke;Kate Thomas;Jeremy Horwood

  • Association Between Cannabis and Psychosis: Epidemiologic Evidence

    Suzanne H. Gage;Matthew Hickman;Stanley Zammit

  • Effects of cannabis use on outcomes of psychotic disorders: systematic review.

    Stanley Zammit;Theresa H. M. Moore;Anne Lingford-Hughes;Thomas R. E. Barnes

  • Self-reported psychotic symptoms in the general population: results from the longitudinal study of the British National Psychiatric Morbidity Survey

    Nicola J Wiles;Stanley Zammit;Paul Bebbington;Nicola Singleton

  • IQ and non-clinical psychotic symptoms in 12-year-olds: results from the ALSPAC birth cohort.

    Jeremy Horwood;Giovanni Salvi;Kate Thomas;Larisa Duffy

  • Support for genetic variation in neuregulin 1 and susceptibility to schizophrenia

    Nigel Melville Williams;A Preece;G Spurlock;N Norton

  • Psychotic Experiences and Psychotic Disorders at Age 18 in Relation to Psychotic Experiences at Age 12 in a Longitudinal Population-Based Cohort Study

    Stanley Zammit;Daphne-Zacharenia Kounali;Mary Cannon;Anthony S David

  • Mental health in UK Biobank: development, implementation and results from an online questionnaire completed by 157 366 participants

    Katrina A S Davis;Jonathan R I Coleman;Mark Adams;Naomi Allen

  • Identification in 2 independent samples of a novel schizophrenia risk haplotype of the dystrobrevin binding protein gene (DTNBP1).

    N. M. Williams;A Preece;D. W. Morris;G. Spurlock

  • Phenotypic manifestation of genetic risk for schizophrenia during adolescence in the general population

    Hannah J. Jones;Hannah J. Jones;Evie Stergiakouli;Katherine E. Tansey;Leon Hubbard

Frequent Co-Authors

Glyn Lewis
Glyn Lewis University College London
Michael John Owen
Michael John Owen Cardiff University
Michael Conlon O'Donovan
Michael Conlon O'Donovan Cardiff University
Jon Heron
Jon Heron University of Bristol
George Kirov
George Kirov Cardiff University
Peter Jones
Peter Jones University of Cambridge
Nadine Norton
Nadine Norton Mayo Clinic
Nigel Williams
Nigel Williams Cardiff University
Marcus R. Munafò
Marcus R. Munafò University of Bath
Hywel Williams
Hywel Williams University College London

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