The study was terminated due to the COVID-19 situation.

The Hangzhou Hospital Staff Cohort (HHSC) is a prospective cohort study among staffs from three hospitals located in Hangzhou, China, including the Hangzhou First People's Hospital, Hangzhou Women's Hospital, and Hangzhou Red Cross Hospital. Participants recruitment and baseline survey including anthropometric, lifestyle and clinical measurement, as well as biological samples collection are initiated in January 2021. Recruited hospital staff are followed up every year during the medical examination organized by their employer. The primary aim of the HHSC study is to investigate the prospective associations of diet, physical activities, sleep, and other lifestyle factors with the long-term metabolic health of the hospital staffs. The secondary aim of the HHSC study is to integrate multi-omics data including genomics, metabolomics, proteomics and microbiome by a machine learning algorithm, to probe into the complex mediating roles of gene, metabolism and gut microbiota linking lifestyle factors with metabolic health.

Inclusion Criteria:

• Participants aged 18 years or older
• Serving staffs of designated hospitals

Exclusion Criteria:

• Participants with cancer
• Participants with other serious medical disorders

Patients who are serving staffs from the Hangzhou Frirst People's Hospital, Hangzhou Women's Hospital, and Hangzhou Red Cross Hospital are recruited.

Undecided