Longitudinal and Cohort Studies in Public Health

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Articles published in this theme: 480 (scroll down to load remaining articles)

2026

Mother kissing sleeping baby with pacifier

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Exploring the Early-Life Microbiomes of Preterm Infants and Their Childhood Health Outcomes (The BLOOM Study): Protocol for a Prospective, Observational Cohort Study

Marie-Claire Arrieta, Andrea Guedez, Catherine Lebel, Emily M Mercer, Fatimoh Kasaba, Gerald F Giesbrecht, Hussein Zein, James D Kellner, Jumana Samara, Lara M Leijser, Laura Sycuro, Luis Murguía Favela, Michelle R Asbury, Thierry Lacaze-Masmonteil, Zahra Rangipour, Jessica Lee, Kelly McNagny, Leonora Hendson, Belal Alshaikh

JMIR Res Protoc 2026 (Aug 18); 15:e95658

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Person's hand holding a smartphone displaying a diet plan app with calorie tracking. Healthy food in background.

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Association Between Daily Food-Tracking Frequency and Clinically Significant Weight Loss: Retrospective Cohort Study of 5132 Mobile App Users

Sergey Oreshko, Susan Heikkinen

J Med Internet Res 2026 (Aug 13); 28:e98144

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Doctor explaining heart anatomy on tablet to patient

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Comparative Performance of AI Models and Clinicians in Evidence-Based Cardiovascular Disease Management for People Living With HIV: Comparative Study

Tianqi Kong, Liqin Sun, Yinsong Luo, Xi Xiao, Jin Li, Jiaye Liu

J Med Internet Res 2026 (Aug 10); 28:e89858

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Medical professionals assist a patient at a health checkup table.

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Longitudinal Population-Level Shifts in Infectious Disease–Specific Health Literacy During and After the COVID-19 Pandemic in Zhejiang, China: Six-Round Cross-Sectional Study

Zhao Yusui, Dingming Yao, Yue Xu, Xiujing Hu, Qingqing Wu, Lei Wang, Xuehai Zhang, Zhen Jiang

JMIR Public Health Surveill 2026 (Aug 05); 12:e89958

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Person's hands holding a smartphone with a dark interface displaying audio controls.

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Mobile App–Based Tracking of Daily Explicit and Implicit Sense of Agency Among Adults Living in Japan: Longitudinal Observational Study

Yoshiro Shirai, Eriko Sugisaki, Roberto Legaspi, Ryunosuke Togawa, Akihiro Sasaki, Akihiro Miyamoto, Motoyuki Sanada, Kae Nakajima, Nao Kobayashi, Yasushi Naruse

JMIR Form Res 2026 (Aug 05); 10:e77607

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Smiling senior Black woman with gray hair using a laptop in a room filled with plants.

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COVID-19 Impact on Health Behaviors and Survey Engagement in Older African Americans: Longitudinal Cohort Study

Selda Yildiz, Nora Mattek, Joel Steele, Sarah Gothard, Ana W Capuano, Lisa L Barnes, Jeffrey A Kaye, Bryan D James, Zachary T Beattie

JMIR Form Res 2026 (Aug 03); 10:e79432

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SAMBA-II diagnostic instrument with tablet interface and lab supplies.

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Feasibility, Acceptability, and Test Performance of Point-of-Care Nucleic Acid Tests for HIV Testing and Viral Load Monitoring in the United States: Prospective Longitudinal Mixed-Methods Study

Lisa A Niemann, Lauren R Violette, Andy Cornelius-Hudson, Maggie Murphy, Carl Capili, Mindy Dai, Anjuli Wagner, Sarah Frey, Shireesha Dhanireddy, Shaneil E Taylor, Karen W Hoover, Joanne D Stekler

JMIR Res Protoc 2026 (Jul 23); 15:e84625

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Researchers analyze high-dimensional multimodal data on a large screen, showing biomechanics, imaging, and biomarkers.

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Novel Musculoskeletal Hypotheses in the Armed Services Trauma and Rehabilitation Outcome (ADVANCE) Cohort: Development and Application of Sparse Group Factor Analysis Methodology

Fraje C E Watson, Fabio S Ferreira, Balasundaram Kadirvelu, Alex N Bennett, Aldo A Faisal, Neil Graham, Harriet Kemp, Paul Cullinan, Christopher Boos, Nicola T Fear, Anthony M J Bull

J Med Internet Res 2026 (Jul 21); 28:e91958

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Four diverse young adults high-fiving in a modern office space

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Evaluation of 24-Month Effects of the Close to Home Program on Youth Sexual and Dating Violence Across 22 Communities in California: Protocol for a Quasi-Experimental Cluster-Matched Control Trial

Emma C Jackson, Sabrina C Boyce, Ricardo Vera Monroy, Holly (Shakya) Baker, Jay G Silverman

JMIR Res Protoc 2026 (Jul 15); 15:e81249

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Serial COVID-19 antigen rapid tests on a table with a mask and swab.

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Characteristics Influencing Adherence to SARS-CoV-2 Serial Antigen Testing Following a Federal Safety Communication: Cohort Study

Micajah Z McGarity, Catherine C Pollack, Elizabeth A Currier, Andrew C Godoshian, Zachary R Smith, Marcus Siddall, Reynolds M Salerno, Thomas C Tsai, Michael F Iademarco, Gregg M Tavolacci, Joseph D Miller

JMIR Public Health Surveill 2026 (Jul 15); 12:e92002

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Man wearing a white N95 mask and black baseball cap in a misty outdoor environment

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Long-Term Exposure to Particulate Matter 2.5 and Ozone and the Risk of Acute Respiratory Infections: Community-Based Prospective Cohort Study

Xiaolei Duan, Xiao Yu, Hongyu Liang, Zexuan Wen, Wenyong Zhou, Ying Ma, Weibing Wang, Yaxu Zheng, Huanyu Wu

JMIR Public Health Surveill 2026 (Jul 13); 12:e88045

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Family using tablet for educational games, promoting digital learning.

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Family Size and Longitudinal Outcomes of a Digital-Human Parenting Intervention in Chinese Preschool Families: Secondary Analysis

Zuyi Fang, Xing He, Xinyu Shi, Ruochen Ruan, Jamie M Lachman

J Med Internet Res 2026 (Jul 10); 28:e101388

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Healthcare worker checks blood pressure of an elderly man outdoors.

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Community Health and Demographic Surveillance System for Noncommunicable Disease Epidemiology Among Adults in Rural and Urban Zimbabwe, 2024-2029: Protocol for a Longitudinal Surveillance Study

Richard Makurumidze, Terrence Rudado Musekiwa, Justice Mudavanhu, Newten Handireketi, Manes Munyanyi, Cremance Tshuma, Marvellous Mhloyi, Justen Manasa, Jonathan Arthur Matenga, Simbarashe Rusakaniko

JMIR Res Protoc 2026 (Jul 10); 15:e89292

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Doctors discussing patient vital signs on computer monitor in hospital

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Impact of an Artificial Intelligence–Powered Clinical Decision Support System for Acute Kidney Injury Prevention in the Intensive Care Unit: Single-Center Uncontrolled Before-and-After Implementation Study

Francesca Alfieri, Andrea Ancona, Alessandro Bacci, Simone Zappalà, Jordi Morillas Perez

JMIR Form Res 2026 (Jul 08); 10:e87738

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Elderly man with gray beard looking stressed by window

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Technology-Enhanced Peer Support for Depression in Older Adults: Single-Arm Mixed Methods Feasibility Study

Jin hui Joo, Alice Xie, Samuel Van Vleet, Joseph Locascio, Kristina Brackpool, Fei Wu, Namkee Choi, Phyllis Solomon, Nicholas Cloney

JMIR Form Res 2026 (Jul 07); 10:e85526

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Young man with beanie receiving IV treatment in a recliner

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Real-World Mapping of Multiple Primary Carcinoma Combinations and Survival Outcomes in Shanghai, China: Retrospective Registry-Based Study

Jianwei Shi, Yichen Chen, Chen Chen, Xiaopan Li, Hua Jin

JMIR Public Health Surveill 2026 (Jul 06); 12:e82355

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Elderly woman frowning while looking at phone in bedroom

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Prediction of Clinically Significant Depressive Symptoms at 2-Year Follow-Up in Older Adults: Machine Learning Study Using the English Longitudinal Study of Ageing

Bahar Khorram, Ramin Nilforooshan, Payam Barnaghi, Samaneh Kouchaki

JMIR Form Res 2026 (Jul 02); 10:e84744

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Senior man with gray beard exercising with dumbbells

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Associations of Solid Fuel Use and Circadian Rhythm Syndrome With Physical Function and Muscle Strength in Middle-Aged and Older Adults: Nationwide Cohort Study in China

Haochen Wang, Pengsen Mou, Donghao Liu, Ze Zhao, Wenzheng Chen, Yuxin Yao, Haoyan Shi, Jiaxin Guan, Jing Dong, Yingliang Wei

JMIR Aging 2026 (Jun 29); 9:e78352

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Man in a yellow jacket and face mask standing on a beach

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KlimaNot—Effects of Climate Change on Emergency and Acute Care: Protocol for a Multicenter, Registry-Based Observational Cohort Study

Kai Heimrath, Mirjam Rupprecht, Madlen Schranz, Timon Klein, Jenny Unterkofler, Tobias Schilling, Jonas Bienzeisler, Miriam Hertwig, Johannah Cramer, Merle Potzauf, Thea Laurentius, Wiebke Schirrmeister, Cornelius Bollheimer, Sebastian Sager, Rainer Röhrig, Felix Walcher

JMIR Res Protoc 2026 (Jun 25); 15:e82267

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Elderly woman using a walker with a caregiver's assistance in a rehabilitation center.

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Predicting Frailty Trajectories Using Interpretable Machine Learning Among Older Adults Following Hip Surgery: Prospective Longitudinal Study

Jingying Huang, Qinqin Fan, Huiqin Shi, Jiaojiao Chen, Hongbo Gao, Kailai Gu, Jin Yang

JMIR Aging 2026 (Jun 16); 9:e90705

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