Noriyuki Iwama

1.6k citations

97 papers · 1.0k indexed · h-index 19

Obstetrics and Gynecology top 2%
- Pregnancy and preeclampsia studies 44
- Gestational Diabetes Research and Management 34
Pediatrics, Perinatology and Child Health top 5%
- Birth, Development, and Health 29
- Maternal and fetal healthcare 6
Endocrinology, Diabetes and Metabolism top 10%
Surgery
- Bariatric Surgery and Outcomes 6
Gastroenterology top 10%
Public Health, Environmental and Occupational Health
- Maternal Mental Health During Pregnancy and Postpartum 15
Clinical Psychology
- Child and Adolescent Psychosocial and Emotional Development 7
Pulmonary and Respiratory Medicine
- Gastric Cancer Management and Outcomes 7

Co-authors: Tohru Takahashi Hirohito Metoki Mami Ishikuro Taku Obara Nobuo Yaegashi Ken Saito Shinichi Kuriyama Hidekazu Nishigori
Cited by: Obstetrics and Gynecology Pediatrics, Perinatology and Child Health Endocrinology, Diabetes and Metabolism
Journals: SHILAP Revista de lepidopterología (4 papers)PLoS ONE (2 papers)The Journal of Clinical Endocrinology & Metabolism (1 paper)
Partner nations: Japan United States Australia

In The Last Decade

Noriyuki Iwama

83 papers receiving 998 citations

Peers

Countries citing papers authored by Noriyuki Iwama

Since Specialization

Citations

This map shows the geographic impact of Noriyuki Iwama's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Noriyuki Iwama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Noriyuki Iwama more than expected).

Fields of papers citing papers by Noriyuki Iwama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Noriyuki Iwama. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Noriyuki Iwama. The network helps show where Noriyuki Iwama may publish in the future.

Co-authorship network

The 25 scholars most cited alongside Noriyuki Iwama, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Noriyuki Iwama Line = papers co-authored together Noriyuki Iwama links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Maternal Fasting Plasma Glucose Level in Early Gestation and Developmental Delay in 2-year-old Children The Journal of Clinical Endocrinology & Metabolism ·Chikana Kawaguchi,Mami Ishikuro,Ryota Saito,Keiko Murakami,Aoi Noda,Genki Shinoda,Misato Aizawa,Hisashi Ohseto,Noriyuki Iwama,Masatsugu Orui,Taku Obara,Shinichi Kuriyama	2025	0
2	Evaluation of depression at 6 and 12 months postpartum by examining depressive symptoms and self‐harm ideation during the early postpartum period: Tohoku Medical Megabank Project Birth and Three‐Generation Cohort Study SHILAP Revista de lepidopterología ·Masatsugu Orui,Taku Obara,Mami Ishikuro,Aoi Noda,Genki Shinoda,Keiko Murakami,Noriyuki Iwama,Ippei Chiba,Kumi Nakaya,Rieko Hatanaka,Mana Kogure,Natsuko Kobayashi,Saya Kikuchi,Hirohito Metoki,Masahiro Kikuya,Naoki Nakaya,Atsushi Hozawa,Hiroaki Tomita,Shinichi Kuriyama	2024	1
3	Validity of a Self-administered Food Frequency Questionnaire for Genomic and Omics Research Among Pregnant Women: The Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study Journal of Epidemiology ·Keiko Murakami,Misako Nakadate,Taku Obara,Misato Aizawa,Ippei Takahashi,Mami Ishikuro,Aoi Noda,Hisashi Ohseto,Noriyuki Iwama,Masatoshi Saito,Ribeka Takachi,Shiori Sugawara,Yudai Yonezawa,Takahiro Yamashita,Shigenori Suzuki,Junko Ishihara,Masayuki Yamamoto,Shinichi Kuriyama	2024	0
4	Association between exposure to atypical antipsychotics during pregnancy and risk of miscarriage Acta Psychiatrica Scandinavica ·Tomofumi Ishikawa,Takamasa Sakai,Noriyuki Iwama,Ryo Obara,Kei Morishita,Motohiko Adomi,Aoi Noda,Mami Ishikuro,Saya Kikuchi,Natsuko Kobayashi,Hiroaki Tomita,Masatoshi Saito,Hidekazu Nishigori,Shinichi Kuriyama,Nariyasu Mano,Taku Obara	2024	2
5	Association of Parity with Type 2 Diabetes Mellitus in Japan Reproductive Sciences ·Hongxin Wang,Noriyuki Iwama,Keiichi Yuwaki,You Nakamichi,Hirotaka Hamada,Hasumi Tomita,Kazuma Tagami,Rie Kudo,Natsumi Kumagai,Hirohito Metoki,Naoki Nakaya,Atsushi Hozawa,Shinichi Kuriyama,Nobuo Yaegashi,Masatoshi Saito	2024	0
6	Association between Maternal Birth Weight and Prevalence of Congenital Malformations in Offspring: The Japanese Environment and Children’s Study Nutrients ·Hirotaka Hamada,Noriyuki Iwama,Hasumi Tomita,Kazuma Tagami,Natsumi Kumagai,Rie Kudo,Hongxin Wang,Seiya Izumi,Zen Watanabe,Mami Ishikuro,Taku Obara,Nozomi Tatsuta,Hirohito Metoki,Masatoshi Saito,Chiharu Ota,Shinichi Kuriyama,Takahiro Arima,Nobuo Yaegashi,(unknown)	2024	0
7	Association between maternal psychological distress and children's neurodevelopment in offspring aged 4 years in Japan: The Tohoku Medical Megabank Project Birth and Three‐Generation Cohort Study Journal of Paediatrics and Child Health ·Ippei Takahashi,Taku Obara,Saya Kikuchi,Mika Kobayashi,Mami Ishikuro,Keiko Murakami,Fumihiko Ueno,Aoi Noda,Tomomi Onuma,Fumiko Matsuzaki,Natsuko Kobayashi,Hirotaka Hamada,Noriyuki Iwama,Masatoshi Saito,Junichi Sugawara,Hiroaki Tomita,Shigeo Kure,Nobuo Yaegashi,Shinichi Kuriyama	2023	4
8	Maternal social isolation and behavioral problems in preschool children: the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study European Child & Adolescent Psychiatry ·Keiko Murakami,Mami Ishikuro,Taku Obara,Fumihiko Ueno,Aoi Noda,Tomomi Onuma,Fumiko Matsuzaki,Ippei Takahashi,Saya Kikuchi,Natsuko Kobayashi,Hirotaka Hamada,Noriyuki Iwama,Hirohito Metoki,Masahiro Kikuya,Masatoshi Saito,Junichi Sugawara,Hiroaki Tomita,Nobuo Yaegashi,Shinichi Kuriyama	2023	3
9	Risk of major congenital malformations associated with first-trimester antihypertensives, including amlodipine and methyldopa: A large claims database study 2010–2019 Pregnancy Hypertension ·Tomofumi Ishikawa,Hidekazu Nishigori,Manabu Akazawa,Keiko Miyakoda,Aoi Noda,Mami Ishikuro,Hirohito Metoki,Noriyuki Iwama,Masatoshi Saito,Junichi Sugawara,Hiroshi Kawame,Nobuo Yaegashi,Shinichi Kuriyama,Nariyasu Mano,Taku Obara	2023	14
10	Maternal birth weight as an indicator of early-onset and late-onset hypertensive disorders of pregnancy: The Japan Environment and Children’s study Pregnancy Hypertension ·Kazuma Tagami,Noriyuki Iwama,Hirotaka Hamada,Hasumi Tomita,Rie Kudo,Natsumi Kumagai,Naoto Sato,Seiya Izumi,Kasumi Sakurai,Zen Watanabe,Mami Ishikuro,Taku Obara,Nozomi Tatsuta,Tetsuro Hoshiai,Hirohito Metoki,Masatoshi Saito,Junichi Sugawara,Shinichi Kuriyama,Takahiro Arima,Nobuo Yaegashi	2023	2
11	Development and validation of claims-based algorithms to identify pregnancy based on data from a university hospital in Japan Current Medical Research and Opinion ·Kentaro Tajima,Tomofumi Ishikawa,Aoi Noda,Fumiko Matsuzaki,Kei Morishita,Ryusuke Inoue,Noriyuki Iwama,Hidekazu Nishigori,Junichi Sugawara,Masatoshi Saito,Taku Obara,Nariyasu Mano	2022	2
12	Association between whole blood metallic elements concentrations and gestational diabetes mellitus in Japanese women: The Japan environment and Children's study Environmental Research ·Nozomi Tatsuta,Miyuki Iwai‐Shimada,Shoji F. Nakayama,Noriyuki Iwama,Hirohito Metoki,Takahiro Arima,Kasumi Sakurai,Akane Anai,Kaname Asato,Shinichi Kuriyama,Junichi Sugawara,Kichiya Suzuki,Nobuo Yaegashi,Michihiro Kamijima,Kunihiko Nakai	2022	17
13	Pregnancy outcomes among female childhood, adolescent, and young adult cancer survivors assessed using internet-based nationwide questionnaire surveys in Japan The Journal of Maternal-Fetal & Neonatal Medicine ·Toshiaki Yasuoka,Noriyuki Iwama,Kuniaki Ota,Junichi Hasegawa,Hirohito Metoki,Masatoshi Saito,Takashi Sugiyama,Nao Suzuki	2022	0
14	Validity of Administrative Data for Identifying Birth-Related Outcomes with the End Date of Pregnancy in a Japanese University Hospital International Journal of Environmental Research and Public Health ·Kentaro Tajima,Tomofumi Ishikawa,Fumiko Matsuzaki,Aoi Noda,Kei Morishita,Ryusuke Inoue,Noriyuki Iwama,Hidekazu Nishigori,Junichi Sugawara,Masatoshi Saito,Taku Obara,Nariyasu Mano	2022	8
15	Association of maternal psychological distress and the use of childcare facilities with children's behavioral problems: the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study BMC Psychiatry ·Ippei Takahashi,Keiko Murakami,Mika Kobayashi,Saya Kikuchi,Ayaka Igarashi,Taku Obara,Mami Ishikuro,Fumihiko Ueno,Aoi Noda,Tomomi Onuma,Fumiko Matsuzaki,Natsuko Kobayashi,Hirotaka Hamada,Noriyuki Iwama,Masatoshi Saito,Junichi Sugawara,Hiroaki Tomita,Nobuo Yaegashi,Shigeo Kure,Shinichi Kuriyama	2022	2
16	Association between maternal infertility treatment and child neurodevelopment: findings from the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study in Miyagi and Iwate Prefectures, Japan BMJ Open ·Aoi Noda,Mami Ishikuro,Taku Obara,Keiko Murakami,Fumihiko Ueno,Fumiko Matsuzaki,Tomomi Onuma,Zen Watanabe,Naomi Shiga,Noriyuki Iwama,Hirotaka Hamada,Tatsui Otsuka,Masahito Tachibana,Hiroaki Tomita,Masatoshi Saito,Junichi Sugawara,Shigeo Kure,Nobuo Yaegashi,Shinichi Kuriyama	2022	2
17	Skipping breakfast during pregnancy and hypertensive disorders of pregnancy in Japanese women: the Tohoku medical megabank project birth and three-generation cohort study Nutrition Journal ·Misato Aizawa,Keiko Murakami,Ippei Takahashi,Tomomi Onuma,Aoi Noda,Fumihiko Ueno,Fumiko Matsuzaki,Mami Ishikuro,Taku Obara,Hirotaka Hamada,Noriyuki Iwama,Masatoshi Saito,Junichi Sugawara,Nobuo Yaegashi,Shinichi Kuriyama	2022	5
18	Longitudinal changes of ocular blood flow using laser speckle flowgraphy during normal pregnancy PLoS ONE ·Takahiro Sato,Junichi Sugawara,Naoko Aizawa,Noriyuki Iwama,Fumiaki Takahashi,Michiyo Nakamura-Kurakata,Masatoshi Saito,Takashi Sugiyama,Hiroshi Kunikata,Toru Nakazawa,Nobuo Yaegashi	2017	18
19	Pregnant Women’s Awareness of Social Capital in the Great East Japan Earthquake-Affected Areas of Miyagi Prefecture: The Japan Environment and Children’s Study Disaster Medicine and Public Health Preparedness ·Hidekazu Nishigori,Toshie Nishigori,Kasumi Sakurai,Satoshi Mizuno,Taku Obara,Hirohito Metoki,Zen Watanabe,Noriyuki Iwama,Mami Ishikuro,Nozomi Tatsuta,Ichiko Nishijima,Junichi Sugawara,Shinichi Kuriyama,Ikuma Fujiwara,Takahiro Arima,Kunihiko Nakai,Fumiaki Takahashi,Nobuo Yaegashi,(unknown)	2017	3
20	A case of choledchocele associated with a gall stone trapped in the cyst. The Japanese Journal of Gastroenterological Surgery ·Shin Oguma,Y. Okubo,Shingo Matsuura,Noriyuki Iwama	1990	1

About Noriyuki Iwama

Noriyuki Iwama is a scholar working on Obstetrics and Gynecology, Pediatrics, Perinatology and Child Health and Public Health, Environmental and Occupational Health, having authored 97 papers that have together received 1.0k indexed citations. Recurring topics across this work include Pregnancy and preeclampsia studies (44 papers), Gestational Diabetes Research and Management (34 papers), Birth, Development, and Health (29 papers), Maternal Mental Health During Pregnancy and Postpartum (15 papers), Child and Adolescent Psychosocial and Emotional Development (7 papers), Gastric Cancer Management and Outcomes (7 papers), Maternal and fetal healthcare (6 papers) and Bariatric Surgery and Outcomes (6 papers). The work is most often cited by research in Obstetrics and Gynecology (380 citations), Pediatrics, Perinatology and Child Health (289 citations) and Endocrinology, Diabetes and Metabolism (100 citations). Noriyuki Iwama has collaborated with scholars based in Japan, United States and Australia. Frequent co-authors include Tohru Takahashi, Hirohito Metoki, Mami Ishikuro, Taku Obara, Nobuo Yaegashi, Ken Saito, Shinichi Kuriyama, Hidekazu Nishigori, Junichi Sugawara and Kasumi Sakurai. Their work appears in journals such as SHILAP Revista de lepidopterología, PLoS ONE and The Journal of Clinical Endocrinology & Metabolism.

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