吉林省从1990年开始,按照国家大骨节病监测方案要求,每年对2个监测点进行国家级大骨节病病情监测,1990~1999年间监测点固定不变,为定点监测。2000年以后采取流动式监测方法,每年选择病情较重的病区进行病情监测。1对象与方法1.1监测点的选择监测点全部位于吉林省东部山区或半山 Since 1990, according to the requirements of the national KBD monitoring program, Jilin Province has monitored Kashin-Beck disease status at two monitoring sites annually. The monitoring points during 1990-1999 were fixed and fixed-point monitoring. After 2000 to adopt mobile monitoring methods, each year to choose the more serious ward condition monitoring. 1 objects and methods 1.1 The choice of monitoring points Monitoring points are all located in the eastern mountains of Jilin Province or Mid-levels