University, Subject, Country, Region, World

World 12.959 Scientists Subject Rankings - 2025

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 yearsAs of Apr 17, 2025, the rankings are determined according to the Total H IndexBETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.120.277) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].

* Total H IndexRankings
Ranking Based On Selection: 2
Graham Colditz
Epidemiology
Cancer Prevention
Health Outcomes
Metrics
H-Index
i10 Index
Citation Counts
316
1,354
398,847
* Total H IndexRankings
Ranking Based On Selection: 3
Gordon Guyatt
Evidence-based medicin
Metrics
H-Index
i10 Index
Citation Counts
304
1,687
604,295
* Total H IndexRankings
Ranking Based On Selection: 4
Jaakko Tuomilehto
Public Health
Epidemiology
Diabetes
Cardiovascular Disease
Metrics
H-Index
i10 Index
Citation Counts
298
1,581
519,570
* Total H IndexRankings
Ranking Based On Selection: 5
George Davey Smith
Epidemiology
genetics
history of science
Metrics
H-Index
i10 Index
Citation Counts
296
1,799
451,691
* Total H IndexRankings
Ranking Based On Selection: 7
Tim D Spector
medicine
genetics
nutrition
microbiom
Metrics
H-Index
i10 Index
Citation Counts
267
1,313
281,830
* Total H IndexRankings
Ranking Based On Selection: 8
Peter Libby
medicine
cardiology
atherosclerosis
immunology
Metrics
H-Index
i10 Index
Citation Counts
263
944
311,126
* Total H IndexRankings
Ranking Based On Selection: 9
Nicholas Wareham
epidemiology
metabolic disease
public health
nutrition
physical activity
Metrics
H-Index
i10 Index
Citation Counts
260
1,241
366,013

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Total H IndexRankings
Ranking Based On Selection: 12
Ali H Mokdad
Health Metrics
Population Health
IHME
Global Health
Epidemiology
Metrics
H-Index
i10 Index
Citation Counts
248
795
551,654
* Total H IndexRankings
Ranking Based On Selection: 13
David J Hunter
Cancer Epidemiology
Genetic Epidemiology
Nutritional Epidemiology
Global Health
Metrics
H-Index
i10 Index
Citation Counts
246
1,161
347,859
* Total H IndexRankings
Ranking Based On Selection: 14
Simon I Hay
IHME
Health Metrics
Global Health
Public Health
Epidemiology
Metrics
H-Index
i10 Index
Citation Counts
245
624
399,147
* Total H IndexRankings
Ranking Based On Selection: 16
Diederick E. Grobbee
medicine
epidemiology
coronary heart disease
global health
Metrics
H-Index
i10 Index
Citation Counts
231
1,343
359,560
* Total H IndexRankings
Ranking Based On Selection: 17
Zulfiqar Bhutta
Global Health
Child Survival
Public Health Nutritio
Metrics
H-Index
i10 Index
Citation Counts
230
1,168
381,323
* Total H IndexRankings
Ranking Based On Selection: 19
Joel Schwartz
air pollution
metals
health
statistics
epigenetics
Metrics
H-Index
i10 Index
Citation Counts
229
1,153
189,932
* Total H IndexRankings
Ranking Based On Selection: 20
Emelia J Benjamin
Atrial fibrillation
Faculty Development
Diversity-DEIA
Cardiovascular epidemiology
Inflammatio
Metrics
H-Index
i10 Index
Citation Counts
217
820
410,251
* Total H IndexRankings
Ranking Based On Selection: 21
Douglas Easton
Genetic Epidemiology
Cancer Epidemiology
Statistical Genetics
Metrics
H-Index
i10 Index
Citation Counts
216
960
213,676
* Total H IndexRankings
Ranking Based On Selection: 22
Goncalo Abecasis
Biostatistics
Human Genetics
Statistical Computing
Genetics
Complex Traits
Metrics
H-Index
i10 Index
Citation Counts
215
529
380,083
* Total H IndexRankings
Ranking Based On Selection: 23
James F Sallis
physical activity
exercise
built environment
physical education
walkabilit
Metrics
H-Index
i10 Index
Citation Counts
215
757
255,993
* Total H IndexRankings
Ranking Based On Selection: 25
Elio Riboli
epidemiology
genetics
cancer
public health
Metrics
H-Index
i10 Index
Citation Counts
207
1,080
253,086
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Frank B Hu
          Metrics
H-Index
i10-Index
Citation Counts
320
1,510
525,264
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Graham Colditz
          Metrics
H-Index
i10-Index
Citation Counts
316
1,354
398,847
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Gordon Guyatt
          Metrics
H-Index
i10-Index
Citation Counts
304
1,687
604,295
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Jaakko Tuomilehto
          Metrics
H-Index
i10-Index
Citation Counts
298
1,581
519,570
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
George Davey Smith
          Metrics
H-Index
i10-Index
Citation Counts
296
1,799
451,691
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Paul M Ridker
          Metrics
H-Index
i10-Index
Citation Counts
291
1,187
501,366
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Tim D Spector
          Metrics
H-Index
i10-Index
Citation Counts
267
1,313
281,830
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Peter Libby
          Metrics
H-Index
i10-Index
Citation Counts
263
944
311,126
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Nicholas Wareham
          Metrics
H-Index
i10-Index
Citation Counts
260
1,241
366,013
epidemiology
metabolic disease
public health
nutrition
physical activity
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Eric Rimm
          Metrics
H-Index
i10-Index
Citation Counts
259
929
329,880

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Cornelia M Van Duijn
          Metrics
H-Index
i10-Index
Citation Counts
255
1,166
272,085
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Ali H Mokdad
          Metrics
H-Index
i10-Index
Citation Counts
248
795
551,654
Health Metrics
Population Health
IHME
Global Health
Epidemiology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
David J Hunter
          Metrics
H-Index
i10-Index
Citation Counts
246
1,161
347,859
Cancer Epidemiology
Genetic Epidemiology
Nutritional Epidemiology
Global Health
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Simon I Hay
          Metrics
H-Index
i10-Index
Citation Counts
245
624
399,147
IHME
Health Metrics
Global Health
Public Health
Epidemiology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Michael G Marmot
          Metrics
H-Index
i10-Index
Citation Counts
237
1,015
334,866
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Diederick E. Grobbee
          Metrics
H-Index
i10-Index
Citation Counts
231
1,343
359,560
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Zulfiqar Bhutta
          Metrics
H-Index
i10-Index
Citation Counts
230
1,168
381,323
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Mika Kivimaki
          Metrics
H-Index
i10-Index
Citation Counts
230
1,337
368,670
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Joel Schwartz
          Metrics
H-Index
i10-Index
Citation Counts
229
1,153
189,932
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Emelia J Benjamin
          Metrics
H-Index
i10-Index
Citation Counts
217
820
410,251
Atrial fibrillation
Faculty Development
Diversity-DEIA
Cardiovascular epidemiology
Inflammatio
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Douglas Easton
          Metrics
H-Index
i10-Index
Citation Counts
216
960
213,676
Genetic Epidemiology
Cancer Epidemiology
Statistical Genetics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Goncalo Abecasis
          Metrics
H-Index
i10-Index
Citation Counts
215
529
380,083
Biostatistics
Human Genetics
Statistical Computing
Genetics
Complex Traits
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
James F Sallis
          Metrics
H-Index
i10-Index
Citation Counts
215
757
255,993
physical activity
exercise
built environment
physical education
walkabilit
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Carlo La Vecchia
          Metrics
H-Index
i10-Index
Citation Counts
214
2,056
261,148
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Elio Riboli
          Metrics
H-Index
i10-Index
Citation Counts
207
1,080
253,086