Correlation between the Quality of Life after Brain Injury in Japanese version (QOLIBRI-J) and Community Integration Questionnaire (CIQ)

Abstract

The Quality of Life after Brain Injury (QOLIBRI; 37 items) is a disease specific subjective questionnaire of health-related quality of life (HRQoL) in persons after traumatic brain injury. We developed Japanese version of QOLIBRI; QOLIBRI-J and reported that it's test-retest reliability (ICC; 0.92, Cronbach α = 0.86) and validity (Correlations of SF-36) were excellent. The Questionnaires of QOLIBRI-J are based on subjective satisfaction, although those of another popular QOL instrument, Community Integration Questionnaire; CIQ is based on objective situations. We investigated between the relationship of QOLIBRI-J and CIQ of the persons with higher brain dysfunctions after TBI to show the differences of subjective and objective QOL. Subjects: 73 recruited community-dwelling Japanese with higher brain dysfunction after traumatic brain injury [61 male, 12 female: age 41.6 ± 14.3, Glasgow Outcome Scale-Extended; GOSE (3 to 8: median 5)]. The Correlations between QOLIBRI-J and CIQ were investigated in 73 subjects at the same time. They were also asked to fill the GOSE. The questionnaires were administered in one of three modes: by self-report (mail), self-report (participant presents at the clinic), and face-to-face interview. Distribution of GOS-E score were as follows, 3: lower severe disability (12.3%), 4: upper severe disability (27.4%), 5: lower moderate disability (27.4%), 6: upper moderate disability (16.4%), 7: lower good recovery (11.0%), 8: upper good recovery (5.5%). There was a low correlation between QOLIBRI-J total score and the CIQ total score (ρ=0.326 Spearman correlation coefficient). By the subscale analysis, the strongest correlation was found between QOLIBRI-J (Daily life/autonomy) and CIQ (social life). In contrast there was the weakest correlation between QOLIBRI (emotions) and CIQ (productive life). There was no correlation between the QOLIBRI and GOSE (ρ=0.21). QOLIBRI-J had a mild correlation with CIQ. There were some differences between QOLIBI and CIQ. One of the reasons of this difference was thought to be the subjective emotional factor about taking a productive work.