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Higuchi T, Ideno Y, Yasui T, Kurabayashi T, Takamatsu K, Nagai K, Hayashi K. Prevalence of menopausal symptoms around the time of the final menstrual period in Japanese women: Data from the Japan Nurses’ Health Study. Maturitas. 2025 Apr;195:108216. doi: 10.1016/j.maturitas.2025.108216.
Chung HF, Hayashi K, Dobson AJ, Sandin S, Ideno Y, Hardy R, Weiderpass E, Mishra GD. Association between endometriosis and type and age of menopause: a pooled analysis of 279 948 women from five cohort studies. Hum Reprod. 2025 Jun 1;40(6):1210-1219. doi: 10.1093/humrep/deaf068.
Obayashi S, Ideno Y, Kubota T, Takamatsu K, Hayashi K. Associations Between Lifestyle Factors and Primary Dysmenorrhea in the Japan Nurses’ Health Study. Womens Health Rep (New Rochelle). 2025 Jul 23;6(1):702-710. doi: 10.1177/26884844251362183.
Okami Y, Ideno Y, Kishi M, Miyazaki Y, Nagai K, Kurabayshi T, Matsumura Y, Hayashi K. Japanese female nurses’ characteristics and diet quality associated with their food intake patterns: The Japan Nurses’ Health Study. Int J Gastron Food Sci. 2025 Sep;41:101236. doi: 10.1016/j.ijgfs.2025.101236.
Kitahara Y, Ideno Y, Tomiyoshi K, Onizuka Y, Nagai K, Iwase A, Shimada J, Ohnishi H, Hayashi K. Feasibility of SNP Genotyping Using Dried Blood Spot Samples Collected in an Epidemiological Study and Its Integration With Genetic Risk Analysis for Endometriosis. Reprod Med Biol. 2025 Sep 10;24(1):e12675. doi: 10.1002/rmb2.12675.
Nagai K, Chung HF, Hayashi K, Dobson AJ, Ideno Y, Sandin S, van der Schouw YT, Hardy R, Anderson DJ, Demakakos P, Brunner EJ, Mitchell ES, Woods NF, Eastwood SV, El Khoudary SR, Hedderson MM, Weiderpass E, Mishra GD. The Association Between Race/Ethnicity and Risk of Type 2 Diabetes in Women Varies by BMI: A Pooled Analysis of Individual Data From 15 Cohort Studies. Diabetes Care. 2025 Dec 2:dc251478. (Epub ahead of print.) doi: 10.2337/dc25-1478.
Nagai K, Yachida N, Yoshihara K, Kurabayashi K, Takamatsu K, Yasui T, Ideno Y, Hayashi K. The Association Between Endometriosis and Gynecologic Cancers in a Prospective Cohort Study: The Japan Nurses’ Health Study. 16th World Congress on Endometriosis 2025 (Sydney), 22 May, 2025.