Objective To have knowledge about the prevalence of fatty liver among model workers in Beijing and its correlation with related factors such as body mass index（BMI） and blood lipid level so as to provide a basis for improving health state of model workers.Method 3 408 model workers in Beijing who had physical examination were collected and divided into two groups according to results of their physical examination and liver B-ultrasound.1 971 cases in the group with fatty liver and 1 437 cases in the group without fatty liver were surveyed with questionnaire concerning life habits and related factors of fatty liver were comparatively analyzed.Results The detection rate of fatty liver in the model worker group with fatty lever was 57.83%;the detection rate of fatty liver in the males was 62.59% which was higher than that of 40.06 % in the females and that in model workers aged over 46 years old was 63.02% which was higher than that of 47.06% in model workers aged 30

4

5 years old

and the differences were statistically significant（p

<

0.05）.The detection rate of hypertension

hyperlipidemia

overweight/obesity in the group with fatty liver was higher than that in the group without fatty liver

and the differences were statistically significant（p

<

0.01）;the detection rate of fatty liver in people who had high working and social pressure

irregular lifestyle

overwork

reduced exercise

frequent eat-out

high-fat diet was as high as 52.32%

8

0.20%.Conclusion The total prevalence of fatty liver among model workers is relatively high which varies by sex and age.The increase of BMI

hyperlipidemia is highly correlated with fatty liver and the increase of BMI is helpful in predicting the risk of fatty liver.Changing unhealthy lifestyle is crucial to prevent and treat the fatty liver.