Measuring family caregivers' experience of interprofessional care for patients and families: development of the Japanese version of the Caregivers' Experience Instrument.

Abstract

Improving individuals' experience of care is now a critical goal of health care systems. Although a number of instruments have been developed to measure experience of care, few instruments measure family caregivers' experience of interprofessional care for patients and families. To develop the Japanese version of the Caregivers' Experience Instrument (J-IEXPAC CAREGIVERS) and to investigate its validity in assessing quality of integrated care for both patients with chronic conditions and their family caregivers, from the caregivers' perspective, in Japan. We used a cross-sectional questionnaire survey to test the validity and internal consistency of J-IEXPAC CAREGIVERS. Four hundred family caregivers were recruited in three municipalities. We evaluated the feasibility, structural validity, internal consistency and hypothesis testing for construct validity of the scale. A total of 274 (68.5%) questionnaires were analysed. Confirmatory factor analysis showed acceptable model fit for the hypothesized two-factor model according to fit indices, as identified for the original version: attention for the patient and attention for the caregiver. Cronbach's alpha for score in J-IEXPAC CAREGIVERS with 12 items was high (0.92). Spearman's rank correlation coefficient between overall caregiver satisfaction and J-IEXPAC CAREGIVERS score was 0.71. Family caregivers who experienced home-visit services had significantly (P = 0.001) higher total scores than those who did not. This pilot study showed that the J-IEXPAC CAREGIVERS is valid and reliable. This scale can be useful for evaluating quality of integrated care, with focus on family caregivers and patients with chronic conditions in Japan.