Validation of a computer version of the patient-administered Danish prostatic symptom score questionnaire

Validity of the Danish Prostate Symptom Score questionnaire in stroke

OBJECTIVE

To determine the content and face validity of the Danish Prostate Symptom Score (DAN-PSS-1) questionnaire in stroke patients.

MATERIALS AND METHODS

Content validity was judged among an expert panel in neuro-urology. The judgement was measured by the content validity index (CVI). Face validity was indicated in a clinical sample of 482 stroke patients in a hospital-based, cross-sectional survey.

RESULTS

I-CVI was rated >0.78 (range 0.94-1.00) for 75% of symptom and bother items corresponding to adequate content validity. The expert panel rated the entire DAN-PSS-1 questionnaire highly relevant (S-CVI = 1.00). No experts suggested items omitted or improved. The response rate was 84% and face validity had an acceptable level of completed response for each symptom items (96-98%) and bother items (93-96%) indicating that all items were well interpreted.

CONCLUSION

The DAN-PSS-1 questionnaire appears to be content and face valid for measuring lower urinary tract symptoms after stroke.