Evaluation of maximum voided volume in Korean children by use of a 48-h frequency volume chart

Objective To develop practical guidelines for the prediction of normal bladder capacity in Korean children measured by a frequency volume chart (FVC), maximum voided volume (MVV) is an important factor in the diagnosis of children with abnormal voiding function. Subjects and Methods In all, 298 children, aged 3-13 years, with no history of voiding disorders volunteered for the study. The MVV was determined in 219 subjects by use of a completely recorded FVC. Results Linear regression analysis was used to define the exact relationship between age and bladder capacity. An approximate formula related age to bladder capacity as follows: bladder capacity (mL) = 12 ×[age (years) + 11]. ConclusionS The relationship between the MVV measured by a FVC by age (3-13 years) of Korean children followed a linear curve. When applied to normal voiding patterns, the formula presented appears to be a reasonable one for Korean children.