Abstract
Residual urine volume, though clinically important as a diagnostic tool, is reported to be variable and unreliable. Variability was examined among 14 geriatric patients, mean age 77 years. Residual urine was measured by ultrasound at three different times of day on each of two visits separated by 2–4 weeks. Results were examined by analysis of variance. Mean residual urine was 154 ml. Between-patient variability was large [standard deviation (SD) 246 ml]. There was no significant difference between values in men and women, nor between visits. Within-patient variability was large because of a large systematic variation with time of day (SD 128 ml), with greatest volumes in the early morning. The inherent, random variability of the measurement was much smaller than this (SD 44 ml). If the physiological factors causing the temporal variation could be controlled more reproducible measurements would be possible.
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Armitage P, Berry G (1987) Statistical methods in medical research, 2nd edn. Blackwell, Oxford, p 360
Ball AJ, Feneley RCL, Abrams PH (1981) The natural history of untreated prostatism. Br J Urol 532:613
Bruskewitz RC, Iversen P, Madsen PO (1982) Value of postvoid residual determination in evaluation of prostatism. Urology 20:602
Craigen AA, Hickling JB, Saunders CRG, Carpenter RG (1969) Natural history of prostatic obstruction. J R Coll Gen Pract 18:226
Folstein MF, Folstein SE, McHugh PR (1975) ‘Minimental state’: a practical method for grading the cognitive state of patients for the clinician. J Psychiatr Res 12:189
Griffiths DJ, McCracken PN, Harrison GM, Gormley EA (1992) Characteristics of incontinence in elderly patients studied by 24-hour monitoring and urodynamic testing. Age Ageing 21:195
Haylen BT (1989) Residual urine volumes in a normal female population: application of transvaginal ultrasound. Br J Urol 64:347
Hinman F Jr, Cox CE (1967) Residual urine volume in normal male subjects. J Urol 97:641
Katz S, Ford AB, Moskowitz RW, Jackson BA, Jaffee MW (1963) Studies of illness in the aged: the index of ADL: a standardized measure of biological and social function. JAMA 185:914
Norussis MJ (1988) SPSS/PC + Advanced Statistics V2.0. SPSS, Chicago, p B-108
Rageth JC, Langer K (1982) Ultrasonic assessment of residual urine volume. Urol Res 10:57
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Griffiths, D.J., Harrison, G., Moore, K. et al. Variability of post-void residual urine volume in the elderly. Urol. Res. 24, 23–26 (1996). https://doi.org/10.1007/BF00296729
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DOI: https://doi.org/10.1007/BF00296729