한국 정상소아 614명의 요속검사 결과분석 = ANALYSIS OF URINARY FLOW RATES IN 614 NORMAL KOREAN CHILDREN

다국어 초록 (Multilingual Abstract)

Purpose: To clarify the statistical characteristics of urinary flow parameters in normal Korean pediatrics, uroflowmetries were performed and analyzed statistically.
Materials and Methods: Impromptu uroflowmetries, using Dantec uroflowmeter, were performed on 658 voluntary normal boys and girls who ranged in age from 4 to 12 years. The flow curves were divided into 4 types, bell(adult), plateau, fractionated and intermittent. We did the statistical analyses, including linear regression and Pearson product moment correlations, of all variables which included peak flow rate, average flow rate, voiding volume, age, sex, body weight, height, and body surface area.
Results: 44 children whose voiding volumes was less than 10 ml were excluded from the study. Mean age of remain 614 children(344 boys and 270 girls) was 7.3±2.1 years. Mean values of voiding volume, peak and average flow rates were 75.3±59.7 ml, 13.7±5.2 & 8.3±3.1 ml/sec in the boys and 78.7±55.7 ml, 14.6±5.7 & 8.1±3.3 ml/sec in the girls, respectively. The bell type was the most common curve pattern in both boys(76.2%) and girls(80.7%). There is no differences in variables between sexes except the peak flow rates which is higher in girls(p<0.05). The flow rates showed modest correlation with all the other variables(r>0.14). Peak flow rates, average flow rates and voiding volume showed high correlations with each other(r>0.5). The calculated linear regression equations were as follow table.

Conclusions: The linear regression equations between the flow rates were presented. These may be useful for predicting deviation from normal value and diagnosing lower urinary tract disturbances in children.