Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :1
obstetrics and gynecology
reproductive health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
203
117
0.576
* Total i10 IndexRankings
Ranking Based On Selection :2
Maternal mortality
perinatal mortality
stillbirths
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
184
123
0.668
* Total i10 IndexRankings
Ranking Based On Selection :3
Reproductive Health
HIV and AIDS
Cervical Cancer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
136
70
0.515
* Total i10 IndexRankings
Ranking Based On Selection :4
hormones
endocrinology
neuroendocrinology
reproduction
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
133
105
0.789
* Total i10 IndexRankings
Ranking Based On Selection :5
Gynecology - Obstetrics- fetomaternal medicine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
130
120
0.923
* Total i10 IndexRankings
Ranking Based On Selection :6
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
103
26
0.252
* Total i10 IndexRankings
Ranking Based On Selection :7
Reproductive Medicine
Family planning
Reproductive Health Research
Medical Education
Leadership
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
101
83
0.822
* Total i10 IndexRankings
Ranking Based On Selection :8
Reproductive Health
HIV and Epidemiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
84
0.884
* Total i10 IndexRankings
Ranking Based On Selection :9
Gynecological Endoscopy
Infertility & Assisted Reproduction
PMTCT.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
52
0.627
* Total i10 IndexRankings
Ranking Based On Selection :10
Fetomaternal
maternal and child health
maternal health
cervical cancer
HIV
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
66
0.835
* Total i10 IndexRankings
Ranking Based On Selection :11
Reproductive health
Safe motherhood
Family planning
Ovarian cancer
Health research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
22
0.297
* Total i10 IndexRankings
Ranking Based On Selection :12
Preterm birth
Premature Rupture of membranes
Gynae-oncology
Evidence based Medicine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
60
0.833
* Total i10 IndexRankings
Ranking Based On Selection :13
Maternal and Child health
Medical Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
64
0.914
* Total i10 IndexRankings
Ranking Based On Selection :14
Women Health I High Risk Pregnancy
Minimal Invasive Surgeries I Assisted Reproductive Techniques
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
66
51
0.773
* Total i10 IndexRankings
Ranking Based On Selection :15
Obstetrics and Gynaecology
Reproductive Medicine
PCOS
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
33
0.524
* Total i10 IndexRankings
Ranking Based On Selection :16
Reproductive Endocrinology and Infertility
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
62
25
0.403
* Total i10 IndexRankings
Ranking Based On Selection :17
Gynaecological oncology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
61
58
0.951
* Total i10 IndexRankings
Ranking Based On Selection :18
High risk pregnancy
Assisted Reproductive Techniques
Evidence Based Health Care
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
53
0.898
* Total i10 IndexRankings
Ranking Based On Selection :19
Urogynaecology and pelvic reconstruction
Feto-Maternal health
infertility
infectious diseases in
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
50
0.877
* Total i10 IndexRankings
Ranking Based On Selection :20
Maternal Health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
42
0.737
* Total i10 IndexRankings
Ranking Based On Selection :21
Infertility
Reproductive physiology and HIV research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
34
0.596
* Total i10 IndexRankings
Ranking Based On Selection :22
Hysteroscopy/IVF/Fertility and family planning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
31
0.544
* Total i10 IndexRankings
Ranking Based On Selection :23
Maternal Fetal Medicine
Gynecological Oncology
Reproductive Endocrinology and Infertility
Gynecological Urology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
28
0.491
* Total i10 IndexRankings
Ranking Based On Selection :24
Maternal care
quality of care
reproductive health
health systems
implementation research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
52
0.929
* Total i10 IndexRankings
Ranking Based On Selection :25
Maternal Fetal Medicine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
54
0.982
Friday Okonofua
University of Benin
Benin City, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
203
117
0.576
obstetrics and gynecology
reproductive health
Robert Pattinson
University of Pretoria
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
184
123
0.668
Maternal mortality
perinatal mortality
stillbirths
Isaac Adewole
University of Ibadan
Ibadan, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
136
70
0.515
Reproductive Health
HIV and AIDS
Cervical Cancer
Ahmed Ezzat Ahmed
South Valley University
Qena, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
133
105
0.789
hormones
endocrinology
neuroendocrinology
reproduction
Ahmed M Abbas
Assiut University
Asyut, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
130
120
0.923
Gynecology - Obstetrics- fetomaternal medicine
Jennifer Thomson
University of Cape Town
Cape Town, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
103
26
0.252
Josaphat Byamugisha
Makerere University
Kampala, Uganda
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
101
83
0.822
Reproductive Medicine
Family planning
Reproductive Health Research
Medical Education
Leadership
Bellington Vwalika
University of Zambia
Lusaka, Zambia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
84
0.884
Reproductive Health
HIV and Epidemiology
Joseph Ikechebelu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
52
0.627
Gynecological Endoscopy
Infertility & Assisted Reproduction
PMTCT.
Hadiza Shehu Galadanci
Bayero University
Gwarzo Road Kano, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
66
0.835
Fetomaternal
maternal and child health
maternal health
cervical cancer
HIV
Fathalla MF
Assiut University
Asyut, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
22
0.297
Reproductive health
Safe motherhood
Family planning
Ovarian cancer
Health research
George Eleje
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
60
0.833
Preterm birth
Premature Rupture of membranes
Gynae-oncology
Evidence based Medicine
Stephen Rulisa
University of Rwanda
Kigali, Rwanda
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
64
0.914
Maternal and Child health
Medical Education
Ibrahim A. Abdelazim
Ain Shams University
Cairo, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
66
51
0.773
Women Health I High Risk Pregnancy
Minimal Invasive Surgeries I Assisted Reproductive Techniques
Zephne Van Der Spuy
University of Cape Town
Cape Town, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
33
0.524
Obstetrics and Gynaecology
Reproductive Medicine
PCOS
HE Onah
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
62
25
0.403
Reproductive Endocrinology and Infertility
Kehinde Sharafadeen Okunade
University of Lagos
Lagos, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
61
58
0.951
Gynaecological oncology
Ashraf Nabhan
Ain Shams University
Cairo, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
53
0.898
High risk pregnancy
Assisted Reproductive Techniques
Evidence Based Health Care
Emmanuel Onyebuchi Valentine Ugwu
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
50
0.877
Urogynaecology and pelvic reconstruction
Feto-Maternal health
infertility
infectious diseases in
Odidika Ugochukwu Joannes Umeora
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
42
0.737
Samuel Obi
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
34
0.596
Infertility
Reproductive physiology and HIV research
Hyginus Uzo. Ezegwui
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
31
0.544
Hysteroscopy/IVF/Fertility and family planning
Benjamin Ozumba
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
28
0.491
Maternal Fetal Medicine
Gynecological Oncology
Reproductive Endocrinology and Infertility
Gynecological Urology
Andrea B. Pembe
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
52
0.929
Maternal care
quality of care
reproductive health
health systems
implementation research
Ahmed Abobakr Nassr
Assiut University
Asyut, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
54
0.982
Maternal Fetal Medicine