Definitions and measurements
DISEASE
Baseline and 2-year follow-up data of intervention and control groups including information of sociodemographic characteristics, lifestyle behaviors, history of disease, and other factors were collected by trained health-care professionals at face-to-face visits using a standardized questionnaire developed by the coordinating center. Then, height, weight, and BP were measured for each participant. Two BP readings were taken on the right arm of employees in a sitting position after resting for at least 5 min and 1-min interval by well-trained staff, with an Omron automatic digital BP monitor device (Omron HBP-1300; Omron, Kyoto, Japan) provided to all workplaces. Participants were not allowed to drink tea/coffee, smoke, and engage in any physical activity for at least 30 min prior to measurement. If the difference between the 2 measurements was greater than 5 mm Hg for systolic blood pressure (SBP) or diastolic blood pressure (DBP), a third measurement was taken and the last 2 measurements were recorded [According to the Chinese BP measurement guideline [Employees were divided into four groups by their occupations, including manual labor workers (e.g., manufacturing, mining), desk job workers (e.g., clerical, professional technical), administrative workers (e.g., manager, director, supervisor), and others (e.g., porter, security guard). In terms of affiliated hospital [