Instruments for Assessing Family Functioning in Adults Patients with Cancer: A Systematic Review of Measurement Properties.

ABSTRACT

OBJECTIVES: To identify instruments for assessing family functioning in adults patients with cancer and summarize their psychometric properties. METHODS: Psychometric systematic literature review was conducted to June 2023 using four databases PubMed, CINAHL, Psych INFO, and Web of Science. The psychometric properties of the instruments and the methodological quality of the studies were evaluated using the Consensus-based Standards for the Selection of Health Measurement Instruments (COSMIN) checklist. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) was used to rate the best available evidence. RESULTS: Forty-four studies reporting 13 instruments were included. The instruments measured varied attributes of family functioning and the dimensions were heterogeneous. The Cancer Communication Assessment Tool for Patients and Families (CCAT-PF) was rated the highest in terms of both methodological rigor and instrument quality. However, the Family Adaptability and Cohesion Evaluation Scale (FACES) and the Ice-Expressive Family Functioning Questionnaire (ICE-EFFQ) offer a more comprehensive measure of family functioning, since they assess multiple dimensions of family functioning and demonstrate high-quality measurement properties. CONCLUSIONS: Instruments to assess family functioning were heterogeneous and exhibited limited reliability and validity. The FACES and the ICE-EFFQ seem to be the most suitable measures for adult cancer patients and their families. Future research should aim to refine the content of existing instruments and rigorously assess their psychometric properties. IMPLICATIONS FOR NURSING PRACTICE Given the profound impact of cancer on family functioning, the initial step in crafting effective interventions is providing valid and reliable instruments to measure the impact of these interventions. This paper could assist nursing professionals in making informed decisions regarding the most suitable instrument for assessing family functioning in adults patients living with life-threatening illness as is the case with cancer.