OBJECTIVETo study the sub-health status in college students in relation to health-related risk behaviors.

METHODSUsing convenient sampling method, 6176 college students (3285 male and 2891 female students) were surveyed with questionnaires for general demographical data, sub-health state and health-risk behaviors.

RESULTSThe reported rate of sub-health state was 10.2%. The reported rate of physical sub-health was 11.7%, and the rate was 21.7%, 13.9% and 15.0% for inadequate physical activities, poor physical function and poor immunity, respectively. The reported rate of psychological sub-health was 10.5%, with a rate of 14.7%, 22.6% and 7.3% for emotional problems, behavioral problems and social adaptation difficulties, respectively. The risk factors for college students included insufficient sleeping, inadequate sport activities, missing breakfast, partial dietary, smoking and drinking (P<0.05).

CONCLUSIONThe reported rate of sub-health is rather high. Early intervention for health-related risk behaviors should be conducted to prevent the incidence of sub-health among college students.