Web versus paper-based completion of the epidemiology of prolapse and incontinence questionnaire.
Web versus paper-based completion of the epidemiology of prolapse and incontinence questionnaire.
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DOI:
10.1097/spv.0b013e31827bfd93
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发表时间:
2013-01
影响因子:
1.6
通讯作者:
Nygaard I
中科院分区:
文献类型:
--
作者:
Egger MJ;Lukacz ES;Newhouse M;Wang J;Nygaard I
To examine the validity and reliability of a web-based version of the Epidemiology of Prolapse and Incontinence Questionnaire (EPIQ). Participants included 876 women ages 38 to 65 attending primary care clinics in the Salt Lake Valley. Women completed a single web or paper based version of the symptom bother questions from EPIQ, and a subset repeated the same or opposite method at 2 separate time points. To assess subscales for the web-based version factor analysis of the 22 EPIQ items related to pelvic floor disorder (PFD) symptoms was performed using principal components analysis and varimax rotation. Internal consistency was assessed using coefficient alpha. Test-retest and inter-method reliability were assessed using intraclass correlation coefficients (ICC) for domain scores. Correlations above 0.70 were considered acceptable. Overall, 384 and 492 women completed at least 1 web and 1 paper EPIQ and 93% were Caucasian with mean age of 50±7 years. Of these, 63 completed web-web, 57 web-paper, 47 paper-web and 109 paper-paper test-retest. Overall, factor analyses were consistent with the 7 domains of the original EPIQ. Cronbach’s alpha for the 4 symptomatic PFD domains and range of test-retest reliability for the various administration methods were similar to the original EPIQ instrument. Correlations for domain scores were above 0.70, except the anal incontinence scale (ICC=0.68.) Web administration of the EPIQ has similar psychometric properties with comparable internal consistency and test-retest reliability when administered in the same modality. Reliability between both methods of administration is acceptable.