Analysis and Reliability of Data from 24&amp;ndash;Hour Frequency&amp;ndash;Volume Charts in Men with Lower Urinary Tract Symptoms due to Benign Prostatic Hyperplasia

Gisolf, Karel W.H.; Venrooij, Ger E.P.M. van; Eckhardt, Mardy D.; Boon, Tom A.

doi:10.1159/000020251

Cited by 37 publications

(40 citation statements)

References 13 publications

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“…In fact, previous investigations have recommended a diary length varying from anywhere from 1 day to 7 days [Robb, 1985;Wyman et al, 1988;Larsson and Victor, 1992;Barbara et al, 1994;Abrams and Klevmark, 1996;Lose et al, 1998;Gisolf et al, 2000;Groutz et al, 2000;Nygaard and Holcomb, 2000]. In the assessment of statistical precision, however, variability and con¢dence intervals must be taken into consideration [Altman et al, 1983].…”

Section: Discussionmentioning

confidence: 99%

“…Diary recordings have been con¢rmed to be reproducible and more accurate compared with patient's recall [Wyman et al, 1988;Larsson and Victor, 1992;McCormack et al, 1992;Groutz et al, 2000;Nygaard and Holcomb, 2000;Blanker et al, 2000]. However, recommendations for diary length vary considerably, including 24 hours [Gisolf et al, 2000;Groutz et al, 2000], 2 days [Larsson and Victor, 1992], at least 3 days [Lose et al, 1998], 3 days [Robb, 1985;Nygaard and Holcomb, 2000], or 7 days [Wyman et al, 1988;Barbara et al, 1994;Abrams and Klevmark, 1996]. This inconsistency may be explained by the fact that the previous investigations analyzed only the reproducibility and correlation of data.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Voiding and incontinence frequencies: Variability of diary data and required diary length

Homma¹,

Ando²,

Yoshida

et al. 2002

Neurourology and Urodynamics

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Frequencies of voiding and urinary incontinence are commonly measured by a patient's recall or a diary. The recommended diary length varies from 1 to 14 days, with 7 days apparently being most common. To examine the statistical precision of these different modalities, we analyzed recall data and diary data of 74 patients with urinary frequency, incontinence, or both. Recall data on voiding and incontinence frequency were systematically higher and more variable than diary data. Longer diary length provided less variable diary data. The confidence interval of diary data was calculated by applying the normal distribution to daytime voiding frequency and the Poisson distribution to daytime incontinence frequency. For daytime voiding frequency, the 95% confidence interval was estimated to be (x - 2.65, x + 2.65) (x - 1.53, x + 1.53) (x - 1, x + 1), where x is the 1-day, 3-day, and 7-day diary mean, respectively. For daytime incontinence frequency, the confidence interval depended on both the diary length and the diary mean. It was estimated to be (0, 6.39), (1.72, 4.28), (2.36, 3.64), by using a diary mean of 3 or 1-day, 7-day, and 28-day diaries, respectively. Also, it was estimated to be (0, 1.02), (1.72, 4.28), (7.66, 12.34), when the 7-day diary mean was 0.5, 3, and 10, respectively. Studies with different samples of genuine stress incontinence (n = 37) and urge incontinence (n = 25) confirmed these results. In conclusion, we believe the 7-day diary is highly reliable for estimating voiding frequency and is a reasonable option for predicting incontinence episodes. However, the diary length should be extended in a patient with rarer events of incontinence, and it should be shortened for those who are incontinent more often or who are diagnosed with voiding frequency only.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Voiding and incontinence frequencies: Variability of diary data and required diary length

Homma¹,

Ando²,

Yoshida

et al. 2002

Neurourology and Urodynamics

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“…Pressure-flow studies were analyzed according to the International Continence Society nomogram, 12 Schäfer's obstruction grade, 14 and the URA. 13 Patients were included if they were 50 years old or older, did not have any of the specified exclusion criteria of the International Consensus Committee on BPH, 8 voided a sufficient volume (greater than 150 mL) during one or more free uroflowmetry studies, had reliable pressure-flow relationships, had frequency-volume charts completed for at least 24 hours, 17 had a reliable estimate of postvoid residual urine volume, and had prostate volume determined by transrectal ultrasonography.…”

Section: Methodsmentioning

confidence: 99%

“…17 Transrectal ultrasonography is accepted as a reliable method to estimate prostate volume. 8 Strictly speaking, it is not noninvasive, but its morbidity is comparable to that of the digital rectal examination.…”

Section: Commentmentioning

confidence: 99%

Noninvasive assessment of prostatic obstruction in elderly men with lower urinary tract symptoms associated with benign prostatic hyperplasia

Venrooij

Eckhardt

Boon

2004

Urology

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Objectives.To investigate what combination of easily available parameters allows the noninvasive prediction of infravesical obstruction in optimal agreement with urodynamic classification. Urodynamically, men with lower urinary tract symptoms suggestive of benign prostatic hyperplasia are classified as nonobstructed or obstructed. Methods. Mandatory and recommended tests were performed in 160 consecutive men with lower urinary tract symptoms suggestive of benign prostatic hyperplasia. The classification of the International Continence Society, the group-specific urethral resistance factor, and Schä fer's obstruction grade were estimated from urodynamic studies. The frequency-volume charts were analyzed. A separate group of 173 consecutive men was used for validation. Results. The formula, prostate volume (in cubic centimeters) Ϫ 3 ϫ maximal urinary free flow rate (in milliliters per second) Ϫ 0.2 ϫ mean voided volume (in milliliters; as estimated from frequency-volume charts), was optimal in the classification compared with the urodynamic classification. Extension of this formula to more than three parameters did not result in better selection. As estimated from receiver operating characteristic curves, the accuracy of the formula appeared to be good. The method of quantifying urethral resistance minimally affected the classification that resulted from the combination. From the results, a diagram was created presenting the probability of an individual to have infravesical obstruction. The validation results were satisfactory. Conclusions. The prediction of the probability of a man with lower urinary tract symptoms suggestive of benign prostatic hyperplasia to have infravesical obstruction can be deduced from a diagram based on a formula composed of three readily available parameters: prostate volume, maximal urinary free flow rate, and mean voided volume. UROLOGY 63: 476-480, 2004. © 2004 I n the past, methods were developed to diagnose bladder outlet obstruction (BOO) noninvasively in men with lower urinary tract symptoms (LUTS) suggestive of benign prostatic hyperplasia (BPH). The clinical prostate score (CLIPS), introduced by Rosier et al., 1 was composed of scores for prostate volume, maximal urinary flow rate, postvoid residual urinary volume, and voided volume and had a superior correlation with urodynamically objective BOO than did isolated parameters. The BOO number (BOON) introduced by van Venrooij and Boon, 2 was calculated from the prostate volume, maximal urinary free flow rate, and relative postvoid residual urine volume, defined as the postvoid residual urine volume divided by the bladder volume at a strong desire to void (times 100%). Schacterle et al. 3 combined the maximal urinary flow rate and American Urological Association symptom index, 4 and Steele et al. 5 combined the symptom score, maximal free flow rate, and prostate volume for predicting BOO. Ockrim et al. 6 developed a BOO index based on the maximal free flow rate and prostate volume. Kuo 7 established a clinical prostate sc...

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“…Recently, Gisolf et al [2000] showed that frequency-volume charts are completed reliably by men with LUTS suggestive of BPH and who also met the inclusion criteria of the Scienti¢c Committee. In these men, nocturia due to polyuria was an exceptional ¢nding [Gisolf et al, 2000].…”

Section: Introductionmentioning

confidence: 99%

Data from frequency‐volume charts versus maximum free flow rate, residual volume, and voiding cystometric estimated urethral obstruction grade and detrusor contractility grade in men with lower urinary tract symptoms suggestive of benign prostatic hyperplasia

Venrooij

Eckhardt

Boon

2002

Neurourology and Urodynamics

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Analysis and Reliability of Data from 24–Hour Frequency–Volume Charts in Men with Lower Urinary Tract Symptoms due to Benign Prostatic Hyperplasia

Cited by 37 publications

References 13 publications

Voiding and incontinence frequencies: Variability of diary data and required diary length

Voiding and incontinence frequencies: Variability of diary data and required diary length

Noninvasive assessment of prostatic obstruction in elderly men with lower urinary tract symptoms associated with benign prostatic hyperplasia

Data from frequency‐volume charts versus maximum free flow rate, residual volume, and voiding cystometric estimated urethral obstruction grade and detrusor contractility grade in men with lower urinary tract symptoms suggestive of benign prostatic hyperplasia

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