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本实验应用改水、服硒、食用蓬灰等措施在大骨节病区对3～13岁儿童进行现场防治实验。用现患率、健康儿童新发率、X线痊愈率作为其判定指标。 通过四年的实验观察,现患率由1980年的46.40％下降到1984年的20.30％,有非常显著的差异。36名健康儿童连续四年观察未有新发病人,而对照组出现新发病例,取得了较好的防治效果。本文还对防治措施的作用进行了分析讨论。
In this experiment, changing water, clothing selenium, food Peng Peng and other measures in the Kashin-Beck disease area of 3 to 13-year-old children on-site prevention and control experiments. With the prevalence rate, the incidence of healthy children, X-ray cure rate as a judge. Through four years of experimental observation, the prevalence rate dropped from 46.40% in 1980 to 20.30% in 1984, with very significant differences. Thirty-six healthy children were observed without new-onset patients for four consecutive years while new cases were found in the control group and better prevention and treatment effects were achieved. The article also analyzes the effects of prevention and control measures.