Analysis of monitoring results of Kaschin-Beck disease in Shandong province from 1996 to 2010

Objective To investigate the current status of Kaschin-Beck disease in Shandong province, and to provide a scientific basis for decision-making in controlling the disease. Methods According to the "National Monitoring Program of Kaschin-Beck disease" requirements, historical serious villages of Kaschin-Beck disease in Qingzhou of Shandong province were selected annually; children aged 7 to 16 were chosen to receive clinical examination and children aged 7 to 12 were taken X-ray examination. Clinical and X-ray diagnosis was carried out according to the "Diagnostic Criteria of Kashin Beck Disease"(GB 16003-1995). Results From 1996 to 2010, in 53 diseased villages, three thousand three hundred and eighteen school children aged 7 to 16 were clinically diagnosed, and child Kaschin-Beck disease of degree Ⅰ and above were not detected; three thousand and ninety-one school children aged 7 to 12 were examined by X-ray, forty cases were found positive, and the total positive rate was 1.29％(40/3091 ). The year with the highest positive rate was 2002, and the rate was 3.49％(13/372) ; the positive rate was 0 in 1996 and 2008. The difference of the X-ray positive rate between each year was statistically significant(x2 =31.54, P ＜ 0.01 ). Conclusions Child Kashin-Beck disease in Qingzhou is basically under control.Since etiology of Kashin-Beck disease is still unclear, surveillance of the disease still needs to be strengthened. Key words: Kaschin-Beck disease;  Monitoring;  Data collection;  Outcome assessment