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Should we use the shorter Thai‐version quality of life and symptoms questionnaires in women with overactive bladder?
Author(s) -
Bunyavejchevin Suvit,
Liao Limin,
Lu ShingHwa,
Choo MyungSoo,
Rabbani Khalid Javed,
Havad Piyalamporn
Publication year - 2015
Publication title -
journal of obstetrics and gynaecology research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.597
H-Index - 50
eISSN - 1447-0756
pISSN - 1341-8076
DOI - 10.1111/jog.12699
Subject(s) - overactive bladder , medicine , intraclass correlation , quality of life (healthcare) , cronbach's alpha , gynecology , urology , physical therapy , psychometrics , clinical psychology , nursing , alternative medicine , pathology
Aim The aim of this study was to test: (i) the validation and reliability of the Thai versions of overactive bladder (OAB) questionnaires (the 8‐item and 3‐item Overactive Bladder Symptoms Score questionnaires [OAB‐v8 and OAB‐v3, respectively] and the Overactive Bladder Questionnaire [OAB‐q]); and (ii) the correlation of the OAB‐v8, OAB‐v3, and the single‐question Quality of Life Questionnaire (1‐QoL) to the OAB‐q in Thai women with OAB. Material and Methods During January to March 2011, 36 Thai women with OAB attending a urogynecology clinic at Chulalongkorn Hospital, Bangkok, Thailand were recruited. All questionnaires were given as a psychometric test twice, 2 weeks apart. Results Cronbach's alpha of the OAB‐v8 was higher (and above 0.7) than OAB‐v3 at both week 0 and week 2. The intraclass correlations (r icc ) were 0.64, 0.85, and 0.97 for the OABV8, OAB‐v3, and OAB‐q, respectively. The correlation coefficient (r) of OAB‐v3 and OAB‐q at weeks 0 and 2 (0.40 and 0.49) were lower than those for OAB‐v8 and OAB‐q at weeks 0 and 2 (0.62 and 0.62). All questions on the OAB‐v3 had a lower weighted kappa than OAB‐v8. There was no statistically significant difference in the OAB‐q score in each level of 1‐QoL score at week 0 ( P = 0.12) and at week 2 ( P = 0.29). Conclusion The reliability of the OAB‐v3 is poorer than that of the OAB‐v8. The OAB‐v3 is poorer correlated to the OAB‐q than to the OAB‐v8. A short questionnaire, such as the OAB‐v3 and the 1‐QoL, has poor reliability and is poorly correlated to the OAB‐q and is not recommended as a replacement for the standard questionnaires, such as the OAB‐q and the OAB‐v8. The OAB‐v3 should only be used in large screening populations where there are time limits.