大骨节病几个时间分布特征的研究

Study on Some Characteristics of Time Distribution for Kashin-Beck Disease

以大骨节病人在各村（校）１～１３岁儿童各年龄中分布的特点，将病村可分为连续检出、后移检出、继续检出、无检出和不可分五种类型。并用几个典型普查、监测点的ｘ线结果和１００余篇有关患病年龄分布、防治研究和监测方面的文献报道，验证和分析了上述各型的临床流行病学意义。可看出，连续检出型是表示正在或刚发过病的表现；而后移检出型、断续检出型和无检出型是停止发病的表现。并以该病Ｘ线改变为基础，推论出高患病率是由暴发或流行发病形式形成；大骨节病的真正发病时间是相对集中的；发病可间断、反复地发生；发过病年龄段内正常儿童仍可发病；发病点不固定。

The diseased village was divided into five types ,i.e: the successively detected patient type.theposteriorly detected patient type,the intermittently detected patient type,the no detected patient type and the no divided type , according to the age distribution characteristic of children with Kashin-Beckdisease agedfrom 1～13 in the affectedareas。 Having applied the results of some typical points of screening and surveil-lance by X-ray examination an d the review on the age distribution of prevalence,the preveritive trial and thediseaxesurveillance in m ore than l00papers we testd and confirmed the meaning of clinical epidemiology ofthose five types。It showed that the successively detected patient type was a sign of onset at present,but theposteriorly detected patient type,the intermittently detetcted patient type as well as the no detected patienttype were a sign of stoppedattack for this disease。On the basis of the fingers changes on the X- ray film ,weinferred that the high prevalence of the disease may arise from outbreak and epidemic,the real attacked timeof the disease is the relative centralization,the invasion course is intermission and repeating ,the healthy Chil-dren in the range of onset age after the disease occurring can still get this disease and tlie onset place is not fixed。