食用井水中金属元素分布对肾结石发病的影响

Effect of metal elements distribution in the drinking well water on the occurrence of kidney stones

目的探讨食用井水中金属元素分布对肾结石发病的影响。方法对天祝地区年龄16周岁以上且在本地居住超过5年的550名居民进行问卷调查和肾脏超声诊断,同时抽取当地食用井水和饮用水进行水质分析。结果在天祝地区被调查的550名居民中,肾脏超声诊断出肾结石患者89例,约占总人数的16.18%。食用井水中金属元素检测结果显示钙的含量最高,其次为镁、铁、锌、钠、锰,而饮用水中的锌含量最高,其次为钠、锰、钙、镁、铁,并且食用井水中的镁/钙比值明显高于饮用水。进一步研究发现家族史、饮水量少和食用井水中镁/钙比值是影响当地居民肾结石发病率的重要因素,而保持每日饮水量在2L以上可以有效地预防肾结石的发生。结论食用井水中镁/钙的比值与肾结石的发生密切相关,适当地增加饮水量有助于减少肾结石的发生。

Objective To explore the effect metal elements distribution in the drinking well wateon the incidence of kidney stones.Methods A questionnaire survey was conducted on550 residents lived in tianzhu area for more than 5 years and the drinking well water quality was also analyzed.Results Among the 550 residents surveyed,89 patients were diagnosed with renal calculi（about 16.18% of the total）.The results showed that the content of calcium was the highest,followed by magnesium,iron,zinc,sodium and manganese,the content of zinc in drinking water is the highest,followed by sodium,manganese,calcium,magnesium,iron.The ratio of Mg^2＋/Ca^2＋ in drinking water was significantly higher than that of the drinking well water（P〈0.05）.The family history,volume of drinking water and the ratio of Mg^2＋/Ca^2＋ in the drinking well water are important factors to affect the occurrence of kidney stones,and maintaining the volume of drinking water above 2 L daily can effectively prevent the occurrence of kidney stones.Conclusion Mg^2＋/Ca^2＋ in the drinking well water is closely related to the occurrence of kidney stones,increasing the volume of drinking water can help to reduce the occurrence of kidney stones.