Los Angeles County
Department of Public Health
Health Assessment Unit
313 N. Figueroa St., Room 127
Los Angeles, CA 90012
Phone:(213) 240-7785
Fax:(213) 250-2594

The Health Assessment Unit makes up part of the Office of Health Assessment and Epidemiology (OHAE), along with the Epidemiology Unit, the Data Collection and Analysis Unit, and the Institutional Review Board, in the Department of Public Health. OHAE is overseen by the Chief Science Officer.

The Health Assessment Unit oversees the development of the Los Angeles County Health Survey (LACHS), a population-based telephone survey which collects data on health conditions, health behaviors, and health care access and utilization of services from a representative sample of Los Angeles County residents. The unit also provides data support, along with the other units of OHAE, for Area Health Officers and their respective staffs for the purpose of improving community health.

The Los Angeles County Health Survey is a population based telephone survey that provides information concerning the health of  Los Angeles County residents. The data are used for assessing health-related needs of the population, for program planning and policy development, and for program evaluation. The relatively large sample size allows users to obtain health indicator data for large demographic subgroups and across geographic regions of the County, including Service Planning Areas and Health Districts.

UPDATE: 2011 Los Angeles County Health Survey (LACHS) Methodology Changes: FAQs 

LACHS Background information, methodology, questionnaires and data tables.

The 2007 and 2005 LACHS datasets are available for analysis.

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