The methods of coping and their relationship to disease severity, cognitive function, depression and health-related quality of life (HRQoL) were examined in 79 Parkinson's disease (PD) patients and their carers. The coping methods of the PD patients were not associated with disease severity, cognitive function, or depression. In general the majority of correlations were weak. However, patients who used avoidance and cognitive coping methods reported improved HRQoL. Impaired cognitive function, poorer HRQoL and increased disease severity were associated with depression in patients.