Purpose The Tianjin Health and Chronic Disease Study (THCDS) is a longitudinal dynamic cohort study established in 2022, aiming to investigate risk factors and intervention targets of common non-communicable diseases (NCDs) in Tianjin, China. Participants A total of 14 324 participants (average age: 53.48, 34.8% females) were recruited for the baseline survey from July 2022 to November 2023.
All participants underwent routine medical examination, including anthropometric (height, weight and blood pressure), ECG, colour Doppler ultrasound (thyroid, carotid artery, heart, abdominal and reproductive system), chest imaging measurements (X-ray or computerised tomographic scanning), and plasma, urine and faeces sample test and a standardised questionnaire, including demographic information, lifestyle factors (smoking, alcohol consumption, diet, sleep factors, physical activity, cognitive activity and social activity) and self-reported history of common chronic diseases. Participants older than 60 were also invited to perform cognitive function tests using the Montreal Cognitive Assessment scale.
Follow-ups were tracked annually through routine medical examinations and standardised questionnaires to detect their health status.
BMJ Open published a clinical update in Research Highlights on 03 Jun 2026.
The item focuses on Tianjin Health and Chronic Disease Study (THCDS): study design and baseline characteristics of the cohort - cohort profile.
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