Cross-culture adaptation and clinical application of UFS-QoL in Chinese
women with uterine fibroid
Abstract
Objective: To demonstrate the applicability and adaptability of UFS-QoL
in evaluating treatment effectiveness in Chinese populations. Design:
Secondary analysis of a prospective cohort study. Setting: 20 Chinese
hospitals Population or sample: 2411 Chinese women with symptomatic
fibroids. Methods: Patients completed UFS-QoL and short form-36 (SF-36)
at pre-surgery, 6 months, and 12 months after surgery. Evaluating the
extent to which items comprising UFS-QOL the same concept in
Health-related Quality of Life (HRQL) is obtained by calculating the
Cronbach’s α coefficient. Relationships between items and domains were
established using principal axis factor analysis with orthogonal
rotation. Correlation between UFS-QoL and SF-36 was estimated by
Spearman’s correlation. The ability to detect change was evaluated by
comparing pre- and post-treatments and 6- and 12-month scores using
mixed effect models. Main outcome measures: Internal reliability,
convergent validity, criterion validity, and responsiveness. Results:
Exploratory factor analysis yielded six factors with eigenvalues
>1. A 63.61% total variance was explained by the test
items. Ceiling effects of self-consciousness and sexual functioning were
>15%. UFS-QoL showed a positive and moderate correlation
with SF-36, with good consistency reliability (Cronbach
α>0.7 in all subscales) and ability to detect change after
treatment, except for self-consciousness (Cronbach α =0.56), which
showed both lowest effect size (0.38) and SRM (0.38) in 6 and 12 months
after treatment Conclusions: Symptom severity, activity, and mood
domains were valid and reliable in the Chinese UFS-QoL. However,
self-consciousness domain needs further investigation on cultural
adjustment, for example, cognitive debriefing for how Chinese interpret
those questions.