Szabo L, Fegyverneki S
Child Health Centre, Borsod County Teaching Hospital, Hungary.
Br J Urol. 1995 Jul;76(1):16-20. doi: 10.1111/j.1464-410x.1995.tb07824.x.
To establish normal reference ranges of urinary flow rates in children.
From a screening programme, 200 healthy children (96 girls and 104 boys, between 3 and 18 years old) with no renal, urological, psychological or neurological disorders were selected, and they provided 433 micturitions for analysis. The children were divided into those with body surface areas of < 0.92 m2, between 0.92 and 1.42 m2 and > 1.42 m2. The voided volume, maximum and average flow rates of urine were measured. Data were fitted by several mathematical functions and goodness-of-fit determined.
The relationship between maximal or average flow rates and voided volume was best fitted by a logarithmic function. The maximal and average urine flow rate nomograms are given in centile form for each body surface area group in both girls and boys. Flow rates showed a close relationship with voided volumes in both sexes and for all body sizes. The average maximal and average flow rates were higher in girls than in boys.
Normal nomograms of maximal and average urine flow rates of girls and boys at three different body surfaces are presented in centile form. These may be useful for diagnosing lower urinary tract disturbances in children over a wide range of body size and voided volumes.
建立儿童尿流率的正常参考范围。
从一项筛查项目中，选取200名无肾脏、泌尿系统、心理或神经疾病的健康儿童（96名女孩和104名男孩，年龄在3至18岁之间），他们提供了433次排尿样本用于分析。将儿童按体表面积分为小于0.92平方米、0.92至1.42平方米和大于1.42平方米三组。测量排尿量、最大尿流率和平均尿流率。数据用几种数学函数进行拟合，并确定拟合优度。
最大或平均尿流率与排尿量之间的关系用对数函数拟合效果最佳。给出了女孩和男孩各体表面积组以百分位数形式表示的最大尿流率和平均尿流率列线图。尿流率在男女两性以及所有体型中均与排尿量密切相关。女孩的平均最大尿流率和平均尿流率高于男孩。
以百分位数形式呈现了女孩和男孩在三种不同体表面积下的最大尿流率和平均尿流率的正常列线图。这些列线图可能有助于诊断不同体型和排尿量的儿童下尿路疾病。
