Abstract: Objective To survey the status and influencing factors of sub-health in the medical staff, so as to provide scientific basis for the prevention and treatment of sub-health. Methods An equal proportion stratified random sampling method was adopted to investigate the sub-health status of the medical staff in Jinshan District, Shanghai from July to September 2017. Data were analyzed by univariate and multivariate logistic regressions. Results A total of 628 valid questionnaires were included, the average age of the subjects was （34.55 ± 9.14） years old, and the male-to-female sex ratio was 2.2∶1. Of the participants, the detection rate of sub-health was 47.9% （301/ 628）, the rates in tertiary hospitals, secondary hospitals, community health service centers and centers for disease prevention and control were 55.8%, 48.7%, 37.7%, and 50.0% respectively（P<0.05）. Multivariate logistic regression showed that medical personnel in Jinshan District aged 30-39,40-49 and ≥50 years （OR=0.470, 0.468, 0.163） were less likely to have sub-health, while those who were ethnic minorities（OR=10.670）, married seperalion or widowed （OR=13.070, 47.807）, had depressed mood and depression lasting for more than one week in recent three months （OR=2.578）, never ate regularly （OR=5.218）, had poor sleep quality （OR=2.873）, worked more than 40 hours a week （OR=2.717）, and had high working stress （OR=2.099, 3.760） were more likely to have sub-health. Conclusions The sub-health detection rate of medical staff in Jinshan District, Shanghai was relatively high and affected by many factors. Corresponding intervention measures should be taken according to the risk factors.

Key words: Medical staff, Sub-health, Influencing factor