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Objective <p>This study aims to psychometrically test the German version of the Know-IAD questionnaire and describe the knowledge of incontinence-associated dermatitis (IAD) held by nurses in Austria, Germany, and Switzerland.</p> Methods <p>A&#xa0;cross-sectional study was conducted among nurses in Austrian, German, and Swiss hospitals. Data were collected online on general characteristics of IAD and on the German Know-IAD, which consists of three domains and 18&#xa0;items. Data validity was assessed by analysing item validity and discriminant validity.</p> Results <p>In total, 437 nurses participated. The mean participant age was 40&#xa0;years, and most participants (82.2%) were female. The difficulty index of the entire questionnaire was 0.67, and the discrimination index was calculated to be 0.29. The participants answered 66.7% of the Know-IAD items correctly, ranging from 71.4% (domain <i>aetiology and risk</i>) to 60% (domain <i>classification and diagnostics</i>).</p> Conclusion <p>The study results show that the psychometric properties of Know-IAD are moderate, underscoring the need for further psychometric testing or even adaptation. The level of knowledge about IAD held by the participating nurses was moderate, and deficits in classification and diagnostics were identified. The findings indicate a&#xa0;great need for further training regarding IAD in Austria, Germany, and Switzerland.</p>

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The German Know-IAD: psychometric testing and preliminary results

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月13日

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  • Silvia Bauer,
  • Matthias Stark,
  • Patricia Gaugl,
  • Stefan Köberich,
  • Myrta Kohler,
  • Manuela Hoedl

摘要

Objective

This study aims to psychometrically test the German version of the Know-IAD questionnaire and describe the knowledge of incontinence-associated dermatitis (IAD) held by nurses in Austria, Germany, and Switzerland.

Methods

A cross-sectional study was conducted among nurses in Austrian, German, and Swiss hospitals. Data were collected online on general characteristics of IAD and on the German Know-IAD, which consists of three domains and 18 items. Data validity was assessed by analysing item validity and discriminant validity.

Results

In total, 437 nurses participated. The mean participant age was 40 years, and most participants (82.2%) were female. The difficulty index of the entire questionnaire was 0.67, and the discrimination index was calculated to be 0.29. The participants answered 66.7% of the Know-IAD items correctly, ranging from 71.4% (domain aetiology and risk) to 60% (domain classification and diagnostics).

Conclusion

The study results show that the psychometric properties of Know-IAD are moderate, underscoring the need for further psychometric testing or even adaptation. The level of knowledge about IAD held by the participating nurses was moderate, and deficits in classification and diagnostics were identified. The findings indicate a great need for further training regarding IAD in Austria, Germany, and Switzerland.