Factors associated with self-perceived burden to the primary caregiver in older patients with hematologic malignancies: an exploratory study.

OBJECTIVE: Although cancer patients frequently experience self-perceived burden to others, this perception has not been enough studied. The aim of this study was to investigate the prevalence of self-perceived burden to the primary caregiver (SPB-PC) and associated factors in an older patient population with hematologic malignancies at the time of chemotherapy initiation. METHODS: In total, 166 consecutive patients with hematologic malignancies aged ≥65 years were recruited at the time of chemotherapy initiation. Patients' SPB-PC was assessed using a 100-mm visual analogue scale (VAS). Characteristics potentially associated with SPB-PC, including sociodemographic and medical characteristics, physical functioning status (Karnofsky performance score, activities of daily living (ADL)/instrumental ADL), symptoms (fatigue, pain, nausea, quality of life), psychological distress (Hospital Anxiety and Depression Scale (HADS)), perceived cognitive function (Functional Assessment of Cancer Therapy Cognitive (FACT-Cog) Scale), and patients'/primary caregivers' personal relationship characteristics (family tie, support), were assessed. RESULTS: Thirty-five percent of patients reported moderate to severe SPB-PC (VAS ≥ 50 mm). Patients' SPB-PC was associated with lower Karnofsky performance (β = -0.135, p = 0.058) and ADL (β = -0.148, p = 0.037) scores, and higher HADS (β = 0.283, p < 0.001) and FACT-Cog perceived cognitive impairments subscale (β = 0.211, p = 0.004) scores. The proportion of explained variance was 23.5%. CONCLUSIONS: Health care professionals should be aware that about one third of older cancer patients experience moderate to severe SPB-PC at the time of chemotherapy initiation. They should adapt their support of patients who report such a feeling