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[目的]了解石河子地区改水降氟效果及工程运转情况。[方法]运用流行病学现况调查方法对改水病区的水氟、病情进行动态监测。[结果]8~15岁学生氟斑牙患病率降到30%以下,与改水前相比,差异有统计学意义(χ2=633.15,P﹤0.01),群体尿氟值稳定控制在2.0以下,与改水前相比,差异有统计学意义(t=1.52,P﹤0.01);氟骨症病人临床症状减轻,X线出现不同程度的逆转。[结论]经过20多年的改饮低氟水,地方性氟中毒的防治取得了较明显的效果。
[Objective] To understand the effect of water and fluoride removal in Shihezi region and the operation of the project. [Method] The current situation of epidemiological survey method was used to monitor the water fluoride in the water-affected areas. [Results] The prevalence of dental fluorosis in 8 ~ 15-year-old students dropped below 30%, which was significantly different from that before water-flushing (χ2 = 633.15, P <0.01) The difference was statistically significant (t = 1.52, P <0.01). The clinical symptoms of patients with skeletal fluorosis were relieved and the X-ray showed some degree of reversal. [Conclusion] After more than 20 years of drinking low fluoride water, the prevention and cure of endemic fluorosis has achieved obvious effect.