Caregiver distress in schizophrenia and mood disorders: the role of illness-related stressors and caregiver-related factors

Background: Studies using the stress-appraisal-coping model to examine caregiving in schizophrenia and mood disorders are limited. Aim: This study attempted to examine psychological distress among caregivers of persons with schizophrenia and mood disorders using the framework of the stress-coping theory. The impact of illness-related stressors and caregiver-related factors on caregiver-distress was also explored. Methods: In this cross-sectional study, 176 of the 238 selected outpatients with remitted schizophrenia, bipolar and recurrent depressive disorders identified over a 1-year period underwent standardized assessments of psychopathology and functioning. Assessments of burden, appraisal, coping, social support, neuroticism, familial-cultural variables and psychological distress (as an index of caregiving-outcome) were also carried out among family-caregivers of these persons. Results: High levels of caregiver-burden and caregiver-distress and a mix of positive and negative appraisal, adaptive and maladaptive coping, and high and low levels of perceived support among caregivers characterized the caregiving experience. Univariate analyses revealed that both illness-related stressors (symptom-severity, level of functioning, objective burden) and caregiver-related factors (subjective burden, appraisal, coping, perceived support, family-cohesion, neuroticism, time spent in caregiving) influenced caregiver-distress. However, multivariate analyses demonstrated that caregiver-related factors such neuroticism, perceived support, time spent in caregiving, subjective burden and negative appraisal had a much greater influence on caregiver-distress than illness-related stressors. Conclusions: Although interactions between illness-related stressors and caregiver attributes appear to determine caregiver-distress, subjective perceptions and other attributes of caregivers may have a greater impact on distress. Therefore, interventions to reduce caregiver-distress should place equal, if not more emphasis on caregiver-related factors which influence distress.