Prevalence and frequency of mental health care provided by general practitioners: differences between 2 national data sources for the same population.

Objective: Estimates from Canada's first national mental health surveillance initiative-which is based on diagnostic codes in administrative health care utilization databases-indicate that the proportion of Canadians who receive mental health care is more than twice as high as reported in Canada's national mental health survey. Our study examines and clarifies the nature and extent of differences between 2 predominant types of data that are used for mental health services research and planning.

Method: A person-by-person data linkage was conducted between the Canadian Community Health Survey: Mental Health and Well-Being and administrative health care utilization records (British Columbia Ministry of Health Services-Medical Services Plan, and Hospital Discharge Abstract Database) within a universal-access, publically funded health care system, to examine the level of agreement between the data sources and respondent characteristics associated with agreement (N = 2378).

Primary mental health care visits in self-reported data versus provincial administrative records.

Background: Survey data and provincial administrative health data are the major sources of population estimates of mental health care visits to General Practitioners (GPs). Previous research has suggested that self-reported estimates of the number of mental health-related visits per person to health professionals may exceed estimates obtained from physician reimbursement records.

Data And Methods: Self-reported data from the 2002 Canadian Community Health Survey (CCHS): Mental Health and Well-being and administrative records from the Medical Services Plan of British Columbia were linked.