Sub-health status in the occupational population showed high incidence. Thus, it is necessary to improve the occupational groups of sub-health status, improve the health level of occupational groups. Shanghai university of traditional Chinese medicine Shuguang hospital treatment center (hereinafter referred to as disease prevention center), based on traditional Chinese medicine disease theory, did a lot of practices on occupational sub-health groups with Chinese medicine prevention and health care. Since 2014, three-year commitment to the Shanghai action plan project, the hospital has constructed a sub-health platform. This article discussed the experience of construction of sub-health platform for the construction of sub-health management system with Chinese characteristics and provided reference for the construction of sub-health management model.

Objective To compare the accuracy of CT with other methods to measure the length of thoracic esophageal carcinoma. Methods 598 patients with thoracic esophageal squamous carcinoma were enrolled in this study.All the patients received three-field(cervical,thoracic:and abdominal)radical surgery without pre-operative radiotherapy or chemotherapy.The length of each Iesion was recorded and compared by measuring intraoperative specimen,formalin-fixed specimen,X-ray barium meal examination and CT,respectivelv. Results By the measurement of intraoperative specimen,formalin-fixed specimen,Xray barium meal examination and CT,the mean lengths of lesion were(5.22±1.94),(4.28±1.71),(5.12±1.92)and(6.71±2.52) cm,respectively.The measured length was significantly different between intraoperative specimen and formalin-fixed specimen or CT(t=16.01,P＜0.01;t=-15.54,P＜0.01),but not between intraoperative specimen and X-ray barium meal examination(t=1.62,P＞0.05).The measured lengths gradually decreased in the order of CT,intraoperative specimen,X-ray bailam meal examination and formalin-fixed specimen.For different pathological type(except intracavitary type)and different T staging,there was significant difference in lesion length between intraoperative specimen and CT(P＜0.05),but not between intraoperative specimen and X-ray barium meal examination(P＞0.05). Conclusions The length of esophageal carcinoma measured by intraoperative specimen is shorter than by CT,but longer than by X-ray barium meal examination.Specimen could shrink after foriBalin fixation.X-ray barium meal and other examinations should be referred when using CT to delineate tumor target volume of esophageal carcinoma for radiotherapy.