Purpose: The purposes of this study were to determine whether there were differences in the cancer pain experience between patients and family caregivers (FCGs) and to explore the associated factors that influence cancer pain experience congruence. Methods: A multicenter cross-sectional study was conducted. A total of 410 patient-family caregiver dyads completed face-to-face surveys, including information about basic characteristics, the Patient Pain Questionnaire (PPQ), and the Family Pain Questionnaire (FPQ).
