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How well does ISO 11948-1 (the Rothwell method) for measuring the absorption capacity of incontinence pads in the laboratory correlate with clinical pad performance

How well does ISO 11948-1 (the Rothwell method) for measuring the absorption capacity of incontinence pads in the laboratory correlate with clinical pad performance
How well does ISO 11948-1 (the Rothwell method) for measuring the absorption capacity of incontinence pads in the laboratory correlate with clinical pad performance
The ability of ISO 11948-1 (the Rothwell method) to predict the leakage performance of disposable bodyworn pads for heavy urinary incontinence was investigated by measuring correlations between models based on clinical evaluations of 138 diapers and inserts (the two major design categories), and technical models based on their Rothwell absorption capacities and design features. Correlations were poorer than in the original 1993 study for the standard (r?0.87 compared with r?0.95), but still strong enough to help with purchasing choices.

For a given Rothwell capacity, the leakage performance of diapers was far superior to inserts; for example, diapers containing 450 and 300 g of urine performed, as well as inserts containing 300 and 100 g, respectively. No evidence was found for any other design feature having a significant impact on leakage performance. The coefficient of variation for Rothwell capacity (a measure of product consistency) had significant impact on the leakage performance of diapers, but not inserts. The probability of diapers with the poorest consistency leaking exceeded that for the best by about 10 percentage points. Similarly, diapers were about 10 percentage points more likely to leak when used at night than during the day. Differences between day-time and night-time use of inserts were not studied.

incontinence, incontinence pads, absorbency, clinical/technical correlations, international standards
1350-4533
603-613
Cottenden, A.M.
264b07aa-fe35-4045-ab3f-e61f2cb9ebe8
Fader, M.J.
c318f942-2ddb-462a-9183-8b678faf7277
Pettersson, L.
5b52b4ef-3d89-493a-92d3-e4c4752107ea
Brooks, R.J.
00b6da81-6df3-4f17-a53b-7bc4c437a041
Cottenden, A.M.
264b07aa-fe35-4045-ab3f-e61f2cb9ebe8
Fader, M.J.
c318f942-2ddb-462a-9183-8b678faf7277
Pettersson, L.
5b52b4ef-3d89-493a-92d3-e4c4752107ea
Brooks, R.J.
00b6da81-6df3-4f17-a53b-7bc4c437a041

Cottenden, A.M., Fader, M.J., Pettersson, L. and Brooks, R.J. (2003) How well does ISO 11948-1 (the Rothwell method) for measuring the absorption capacity of incontinence pads in the laboratory correlate with clinical pad performance. Medical Engineering & Physics, 25 (7), 603-613. (doi:10.1016/S1350-4533(03)00074-2).

Record type: Article

Abstract

The ability of ISO 11948-1 (the Rothwell method) to predict the leakage performance of disposable bodyworn pads for heavy urinary incontinence was investigated by measuring correlations between models based on clinical evaluations of 138 diapers and inserts (the two major design categories), and technical models based on their Rothwell absorption capacities and design features. Correlations were poorer than in the original 1993 study for the standard (r?0.87 compared with r?0.95), but still strong enough to help with purchasing choices.

For a given Rothwell capacity, the leakage performance of diapers was far superior to inserts; for example, diapers containing 450 and 300 g of urine performed, as well as inserts containing 300 and 100 g, respectively. No evidence was found for any other design feature having a significant impact on leakage performance. The coefficient of variation for Rothwell capacity (a measure of product consistency) had significant impact on the leakage performance of diapers, but not inserts. The probability of diapers with the poorest consistency leaking exceeded that for the best by about 10 percentage points. Similarly, diapers were about 10 percentage points more likely to leak when used at night than during the day. Differences between day-time and night-time use of inserts were not studied.

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More information

Accepted/In Press date: 4 April 2003
Published date: 2003
Keywords: incontinence, incontinence pads, absorbency, clinical/technical correlations, international standards

Identifiers

Local EPrints ID: 58971
URI: http://eprints.soton.ac.uk/id/eprint/58971
ISSN: 1350-4533
PURE UUID: d11f3199-0daf-4ee2-86f3-1c47a1e8ac6a

Catalogue record

Date deposited: 19 Aug 2008
Last modified: 07 Jan 2022 22:34

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Contributors

Author: A.M. Cottenden
Author: M.J. Fader
Author: L. Pettersson
Author: R.J. Brooks

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