Psychometric properties and validation of the German-language King's Health Questionnaire in women with stress urinary incontinence.
OBJECTIVE
The purpose of this study was to evaluate the psychometric properties of and validate the German-language version of the King's Health Questionnaire (KHQ) in women with stress urinary incontinence (SUI).


METHODS
A total of 145 women treated for stress incontinence with surgery or physiotherapy completed the the KHQ and the SF-36 before and after treatment. Psychometric analyses of the quality of life (QoL) instruments determined the reliability (Cronbach's alpha), internal and external validity, and responsiveness of the KHQ subscales.


RESULTS
The KHQ showed good internal consistency, content validity, and criterion validity as measured by correlation with scores on the SF-36. Cronbach's alpha coefficient ranged from 0.76 to 0.86, indicating a high internal consistency of the subscales. Concerning criterion validity, correlations between the KHQ subscales and the SF-36 were low to moderate. The highest correlation was found between the general health perception subscales of both questionnaires.


CONCLUSIONS
The results indicate good psychometric properties for the German-language KHQ.
Bjelic-Radisic
Vesna
V
Department of Obstetrics & Gynecology, Medical University of Graz, Graz, Austria. vesna.bjelic-radisic@klinikum-graz.at
Dorfer
Martha
M
Tamussino
Karl
K
Greimel
Elfriede
E
D000328:Adult; D000368:Aged; D001317:Austria; D005260:Female; D006801:Humans; D007802:Language; D008875:Middle Aged; D011594:Psychometrics / Q000592:standards*; D011788:Quality of Life; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*; D014550:Urinary Incontinence, Stress / Q000175:diagnosis / Q000523:psychology*