Fluid intake and voiding parameters in asymptomatic Turkish women

Introduction and hypothesis

For an accurate evaluation of bladder diaries, we aim to investigate normal urinary habits and determining factors on functional bladder capacity, frequency, and 24-h volume in the bladder diaries of asymptomatic women.

Methods

One-hundred and fifteen asymptomatic women who recorded a 24-h bladder diary were included in the study. Linear regression analyses were used to explore associations between diary values and patient characteristics.

Results

Total number of voids was related to age, body mass index, total voided volume, total fluid intake, total diuresis rate, and maximum fluid intake in one go. Maximum, average, and minimum volumes per void were found to be related to body mass index, total voided volume, total fluid intake, total diuresis rate, and maximum fluid intake. When we used multiple regression analysis, only maximum fluid intake was found to be related to the total number of voids, maximum, average, and minimum volumes per void.

Conclusions

Maximum fluid intake rather than total voided volume seems to be an important determinant factor for total number of voids and functional bladder capacity.