Factors associated with quality of life of caregivers of Mexican cancer patients.

Abstract

To evaluate factors associated with a poor quality of life (QoL) of caregivers of Mexican cancer patients. This is a secondary analysis of a cross-sectional survey of 826 primary caregivers of adult cancer patients at the Oncology Hospital of the Mexican Institute of Social Security. Dependent variables were physical composite score (PCS) and mental composite score (MCS) of QoL of caregivers measured by the Short Form (SF-12) of Medical Outcomes Survey questionnaire. Independent variables included general characteristics of the caregivers, their unmet needs, caregiving and characteristics of cancer patients. Multiple linear regression analysis for each QoL composite score was carried out. The average PCS was 48.7 and MCS was 47.1. Lower PCS was associated with older age, symptoms of chronic illness, depression and unmet personal needs, while concerns about the future were associated with higher physical QoL. Lower MCS was associated with anxiety, depression, unmet personal and emotional needs, and surgery in the last month. Caring for patients with a high global health status was associated with a higher MCS. Information about caregivers' QoL and its associated factors is important in order to identify and address modifiable factors. Also, studies from different cultures like México are essential in order to identify possible generalities and particularities in QoL and its associated factors. Given the limitations of the cross-sectional design of our study, future longitudinal studies on the changes of Mexican caregivers' quality of life and their determinants will be an important step to further understanding these phenomena.