Page 119 - Bladder Dysfunction in the Context of the Bladder-Brain Connection - Ilse Groenendijk.pdf

INTRODUCTION
Overactive bladder (OAB) is defined as urgency, with or without urgency urinary inconti- nence, usually associated with frequency and nocturia. The prevalence of this condition is described to be between 13 – 16 % worldwide, and is expected to increase as a result of the aging of the population. It has been shown to have a great negative impact on an individual’s health-related quality of life (HRQOL). All this causes a high burden on society.1-3
OAB is a symptom-based condition, with low positive and negative predictive val- ues for urodynamic investigations.4,5 The best method available to diagnose disease, quantify disease severity and evaluate treatment effects is therefore the use of patient reported outcome’s (PROs), usually in the form of a questionnaire. Since the introduction of PROs, many different questionnaires have been developed. In order to compare the burden of OAB in patients and define guidelines for treatment, consensus is necessary on the specific questionnaire to use. The EAU (European Association of Urology) and the ICS (International Continence Society) guidelines do not recommend specific question- naires to use for OAB, but both professional organizations mention that it is important to use questionnaires validated in the language of use.6,7 The International Consortium for Health Outcome measurements (ICHOM) aims to improve value-based healthcare by defining global standard sets of outcome measures for different conditions. A core set of outcome measures for OAB which includes the OAB-q SF questionnaire, was developed in 2017.8
The OAB-q Short Form (SF) is a worldwide used questionnaire for health-related qual- ity of life in patients with OAB. OAB-q SF is the shorter version of the 33-item “OAB-q” questionnaire. The OAB-q SF includes 19 items; a 6-item symptom bother scale and a 13-item health-related quality of life (HRQOL) scale.9,10
Before implementing the ICHOM set of outcome measures for OAB in the Netherlands, the OAB-q SF questionnaire needs to be translated and validated in Dutch. Therefore the aim of this study is to translate and validate the OAB-q SF in the Dutch language.
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The validation of the Dutch OAB-q SF questionnaire 117