California Health Interview Survey (CHIS)
CHIS is a collaborative project of the UCLA Center for Health Policy Research, the California Department of Health Services, and the Public Health
Institute. CHIS is an important source of information on health and access to health care services. It gives health planners, policy makers,
county governments, advocacy groups, and communities a detailed picture of the health and health care needs facing California's diverse
population.
CHIS is a telephone survey of adults, adolescents, and children from all parts of the state. The sample represents the geographic
diversity of California, and the multi-language interviews accommodate the state's rich ethnic diversity. The survey
has been conducted every two years
since 2001. The survey provides statewide information on the overall population, including many racial and ethnic groups, and local-level information
on most counties for health planning and important comparison purposes.
CHIS is based at the UCLA Center for Health Policy Research in Los Angeles, California. For more
information about CHIS or to learn how to access CHIS data, please go to www.chis.ucla.edu.
Public Health Rate (PhRate) Program
The PhRate program provides users with a tool for
calculating rates and percentages and their standard errors and confidence
intervals and to test whether or not the observed differences in these rates or
percentages are statistically significant. It also uses regression to determine whether there is a statistically
significant trend in a series of rates or percentages.
Users of this program will need to have the
raw data necessary (e.g., numerators and denominators) for calculating the various
rates and percentages. For example,
to calculate a crude death rate, the user will need to have the total number of
deaths (numerator) and the population-at-risk (denominator). The menu-driven program will prompt you to
enter the numerator and denominator for each rate or percentage. The
resulting rates or percentages along with their associated standard errors and
95% confidence intervals will be calculated by the program.
This program is not a tutorial on the proper
calculation of public health rates nor on their
interpretation and use in determining if a health problem exists in a particular
community or among a particular subgroup of the population.
It is assumed that the user of this program has a basic understanding of
the principles of epidemiology and the use of public health statistics.
Those without at least an introductory level of knowledge concerning
statistics should not be using this program. This program is not a substitute for the thorough in-depth
epidemiological and statistical analyses that are required in determining the
presence or absence of a potential public health problem. To order PhRate
program, please complete and return this order
form.
Special Data Requests and Technical Consultation
OHIR provides customized and cost-effective services to meet your special
research needs. Our staff has expertise in data collection, manipulation, and analysis.
OHIR performs special data requests when customer’s desired information is not
currently available in a published data table or data file, or when customers do
not have the resources or skills to their own analysis of a data file. Our staff
can prepare your special data request in a variety of formats depending on your
needs. Special data requests can be conducted on a one-time or on-going basis.
OHIR also provides technical assistance and consultation relating to the use of
California’s vital statistics data and the application of appropriate
statistical method for program planning and evaluation purposes.
These services are available to California Department of Health Services programs, as well as
other government agencies, universities, media organizations, and the general
public. There may be a charge depending on the scope of the request. To find out
more about these services or potential costs, please contact Jan Christensen at
916-650-6890 or jchrist1@dhs.ca.gov.
|
