Epidemiology

Estimating the prevalence of persistent symptoms after SARS-CoV-2 infection (post-COVID-19 syndrome): a regional cross-sectional study protocol
Lindybeth Sarmiento Varón, Hermy Alvarez, Leyla Carolina Huirimilla Casanova, Maria Paz Díaz Mora, Luis Alfredo Muñoz Cuevas, Jorge Gonzalez-Puelma, Karena Espinoza, Lidia Amarales, Jonathan Lühr Henriquez, Felipe Retamal-Matus, Roberto Uribe-Paredes, Cristian Andrés Núñez-Espinosa, Claudia Estrada-Goic, Vivienne C Bachelet, Mercedes N López Nitsche, Marcelo A Navarrete

BMJ Open May 2025, 15 (5) e093844; DOI: 10.1136/bmjopen-2024-093844
Community burden of acute respiratory infections in Shanghai, a longitudinal cohort study in respiratory pathogens, China, 2024–2027
Chuchu Ye, Jianxing Yu, Bing Zhao, Yifeng Shen, Xiao Wang, Li Zhang, Xuya Yu, Yan Luo, Ling Xin, Yanxin Xie, Yilin Jia, Xinmei Zhou, Linghui Zhao, Yaoyao Wang, Yu Li, Hualei Xin, Ting Zhang, Lance Rodewald, Benjamin J Cowling, Weizhong Yang, Lipeng Hao, Lili Ren, Zhongjie Li

BMJ Open May 2025, 15 (5) e097732; DOI: 10.1136/bmjopen-2024-097732
Development of risk prediction equations for 5-year diabetes incidence using Japanese health check-up data: a retrospective cohort study
Shin Kawasoe, Takuro Kubozono, Satoko Ojima, Satoshi Yamaguchi, Koji Higuchi, Hironori Miyahara, Koichi Tokushige, Masaaki Miyata, Mitsuru Ohishi

BMJ Open May 2025, 15 (5) e097005; DOI: 10.1136/bmjopen-2024-097005
Impact of race, sex and age on the probability of pancreatic cancer among patients with newly diagnosed diabetes in a claims-based cohort
Elham Afghani, Bryan Lau, Laura K Becker, Michael Goggins, Alison P Klein

BMJ Open May 2025, 15 (5) e099488; DOI: 10.1136/bmjopen-2025-099488
Risk factors for neuroendocrine neoplasms: protocol for a case–control study based on a record linkage of registry and claims data
Sven Voigtländer, Roman Gerlach, Nina Grundmann, Ewan Donnachie, Ursula Berger, Amir Hakimhashemi, Martin Meyer, Martin Tauscher, Jacqueline Müller-Nordhorn

BMJ Open May 2025, 15 (5) e096273; DOI: 10.1136/bmjopen-2024-096273
Prevalence and burden of asthma in five European countries: a retrospective cross-sectional study
Asif H. Khan, Imène Gouia, Juby Jacob-Nara, Siddhesh Kamat, Dena Jaffe, deMauri Mackie, Bridget L. Balkaran, Juan Wisnivesky

BMJ Open May 2025, 15 (5) e085175; DOI: 10.1136/bmjopen-2024-085175
Association of the triglyceride–glucose index with all-cause and cardiovascular mortality among individuals with cardiovascular–kidney–metabolic syndrome: a population-based cohort study using data from the US National Health and Nutrition Examination Survey, 1999–2018
Songfeng Zhao, Jiayue Duan

BMJ Open May 2025, 15 (5) e093383; DOI: 10.1136/bmjopen-2024-093383
Association between herpes simplex virus type 1 and the risk of Alzheimer’s disease: a retrospective case–control study
Yunhao Liu, Christine Johnston, Nadine Jarousse, Simon P Fletcher, Shahed Iqbal

BMJ Open May 2025, 15 (5) e093946; DOI: 10.1136/bmjopen-2024-093946
Cardiovascular mortality of 40–69-year-olds in Sri Lanka from 1980 to 2010: a birth cohort analysis by age and sex
DTH De Silva, EDSM De Alwis, DM De Mel, AHD De Silva, TU Munasinghe, AR Wickremasinghe

BMJ Open May 2025, 15 (5) e094083; DOI: 10.1136/bmjopen-2024-094083
Association between body composition and weight retention from early pregnancy to 42 days postpartum: a retrospective cohort study
Yan Li, Jiaying Yuan, Kui Lan, Yang Li, Xia Li, Bin Zhao

BMJ Open May 2025, 15 (5) e092439; DOI: 10.1136/bmjopen-2024-092439

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