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目的探讨联合肌酐和胱抑素C的慢性肾脏病流行病合作组方程和Gate’s法计算高龄(年龄≥80岁)老年人肾小球滤过率的适用性。方法收集99例一般高龄老年人的临床资料,以双血浆法所测得肾小球滤过率为标准,分别用慢性肾脏病流行病合作组方程和Gate’s法计算肾小球滤过率,比较两者的估计偏差、精确性、准确性和95%的一致性。结果慢性肾脏病流行病合作组方程比Gate’s法降低了偏差(P=0.000),提高了精确度,15%、30%和50%准确性(P=0.000、0.000、0.004)以及95%一致性,差异有统计学意义。结论对于高龄老年人,在不需要了解双肾形态、血流灌注状态及单侧肾功能的情况下,慢性肾脏病流行病合作组方程可能是较好的选择。
OBJECTIVE: To investigate the applicability of the equation and Gates’ method of chronic kidney disease co-operation with creatinine and cystatin C in calculating glomerular filtration rate (GFR) in the elderly (aged ≥80 years). Methods The clinical data of 99 elderly patients were collected. The glomerular filtration rate measured by the double plasma method was used as the standard. The glomerular filtration rate (GFR) was calculated by the equation of the chronic kidney disease epidemic cooperation group and the Gate’s method respectively. Estimated deviations, accuracy, accuracy and 95% agreement between the two. Results The CKD equation reduced the deviation from the Gate’s method (P = 0.000) and improved the accuracy, 15%, 30% and 50% accuracy (P = 0.000, 0.000, 0.004) and 95% ,The difference was statistically significant. Conclusions For the elderly, the CKD cohort equation may be a better choice without needing to understand the renal morphology, perfusion status and unilateral renal function.