Translated article: HCU-Q: Development of a Questionnaire Assessing Health Care Utilization

<div>Background: Health care utilization induces costs for</div><div>health care systems. Its assessment is essential for</div><div>the health-economic evaluation of therapies. The most</div><div>commonly</div><div>used method of data collection – via questionnaires</div><div>– is not conducted systematically. This study</div><div>aimed to develop and evaluate a self-report instrument</div><div>for assessing health care utilization. Patients and</div><div>Methods:</div><div>The accuracy of questionnaire-derived data</div><div>on health care utilization compared to interview-derived</div><div>data was analyzed in a general population sample of</div><div>N = 252 with elevated bother by somatoform symptoms</div><div>according to the Patient Health Questionnaire-15 (Study</div><div>1). The discrimination of the questionnaire between</div><div>groups with different somatization scores was examined</div><div>in N = 254 patients with somatoform disorders (Study 2).</div><div>Results: Agreement between questionnaire and interview</div><div>was excellent (intraclass correlation coefficient</div><div>≥ 0.75) (Study 1). Patients with high somatization scores</div><div>had a significantly higher number of outpatient visits</div><div>than patients with mild somatization (Study 2). A modified</div><div>version of the Health Care Utilization-Questionnaire</div><div>(HCU-Q) was established. Discussion: High agreement</div><div>between questionnaire and interview and a good differentiation</div><div>between groups with different somatization</div><div>scores indicate the practicability of the HCU-Q. Conclusions:</div><div>The HCU-Q allows a systematic assessment</div><div>of health care utilization. Further evaluation of the final</div><div>version of the HCU-Q is needed.</div>