Association between self-reported poor sleep status and ovulation rate in Chinese women with fertility intentions: a multicentre prospective cohort study protocol
Nian-jun Su, Juan Huang, Haibo Li, Haiying Chen, Lijing Wang, Shihan Wang, Kali Huang, Jiaxian Wang, Ju Huang, Yang Liao, Lingling Li, Zhengfang Xiong, Haiqin Ren, Beimei Liu, Dongli Chen, Ning Ma, Lixue Yin, Cuiyu Huang, Xiqian Zhang, Fenghua Liu · 2026
Read Association between self-reported poor sleep status and ovulation rate in Chinese women with fertility intentions: a multicentre prospective cohort study protocol by Nian-jun Su, Juan Huang, Haibo Li, Haiying Chen, Lijing Wang, Shihan Wang, Kali Huang, Jiaxian Wang, Ju Huang, Yang Liao, Lingling Li, Zhengfang Xiong, Haiqin Ren, Beimei Liu, Dongli Chen, Ning Ma, Lixue Yin, Cuiyu Huang, Xiqian Zhang, Fenghua Liu (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13182357.txt.
Description
Nian-jun Su and co-authors set out in this 2026 paper the protocol for a large study of sleep and ovulation in women hoping to conceive. Poor sleep is rising among women of childbearing age in China, yet its link to egg release, apart from known disorders, is thin. The study will enroll women aged twenty to fifty at five or more fertility centers over a year and a half.
Questionnaires will log sleep habits, screen time, and night shift work, while wristbands record sleep onset and efficiency. Lab and body measures join the file. The main outcome is ovulation rate, with pregnancy and miscarriage rates behind it. The full plan, ethics approvals included, is published ahead of results.
Catalog record
| CREATOR | Nian-jun Su, Juan Huang, Haibo Li, Haiying Chen, Lijing Wang, Shihan Wang, Kali Huang, Jiaxian Wang, Ju Huang, Yang Liao, Lingling Li, Zhengfang Xiong, Haiqin Ren, Beimei Liu, Dongli Chen, Ning Ma, Lixue Yin, Cuiyu Huang, Xiqian Zhang, Fenghua Liu |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 27 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |