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2001 CHAP
Telephone Survey
Where was this
Information Obtained
The 2001 Community Health
Assessment Telephone survey is an abbreviated remeasure of the
survey performed in 1996. This year’s survey retained a number
of the questions from the original telephone survey, however the
main focus has been measuring insurance status and its relevance
to accessing medical care services. The information in this
report on the general population was obtained from a sample of
Sedgwick County residents who were interviewed by telephone in
December 2000 and January of 2001. Participants were selected
for the study using random-digit-dialing. The Wichita State
University Center for Communications Research conducted the
interviews with persons aged 18 years and older. The sample
included 617 completed surveys.
When demographic information from
the telephone survey of the general population is compared to 2000
U.S. Census Bureau figures and estimates for Sedgwick County, we
find the sample to be dissimilar to the population in terms of
gender, ethnicity, and age (See
Table 1). The 2001 CHAP Telephone
survey female representation is nearly 20 percent higher than 1999
Sedgwick County estimates (68.1% vs. 51.1%), and the Sedgwick
County BRFSS female representation is nearly 10% higher than 1999
Sedgwick County estimates (59.2% vs. 51.1%). In addition, the
ethnic diversity of the 2001 CHAP Telephone survey and Sedgwick
County BRFSS are dissimilar from 1999 Sedgwick County estimates
(see Table 1). Minorities are largely under represented in both
the 2001 CHAP Telephone survey and the Sedgwick County BRFSS data
set.
Because the 2001 survey focused
on assessing health insurance coverage, respondents aged 65 or
older have been excluded from most of the 2001 CHAP analysis, as
they have Medicare coverage for their health care needs. Within
the 2001 CHAP and Sedgwick County BRFSS samples, adults aged 18-24
years are under represented (8.1%, 9.8%, respectively) when
compared to Sedgwick County estimates (14.7%). Approximately 60%
of the 2001 CHAP sample was between 18 and 44 years old, and
nearly 40% were between 45 and 64 years, whereas 65.9% of the
Sedgwick County BRFSS sample was between 18 and 44 years old, and
34.2% were between 45 and 64 years.
Moreover, the survey may under represent low-income residents,
because a growing number of less affluent people are adopting the
cell phone, which can be less expensive than the usual
full-service phone line. Thus, the increase in cell phone use
reduces access to available telephone numbers for the
random-selection pool. The under representation may result in
underestimates of the uninsured and Medicaid recipients in the
telephone survey.
The
disproportionate number of women surveyed may reflect that women
tend to know more about health insurance in families, particularly
in less affluent families. Another reason is is that, for the
sake of randomness, calls were placed both during the day
(typically late afternoon) and early evening, with the result that
women tend the answer the phone more than men at these times.
Therefore, the findings from the 2001 CHAP telephone survey and
Sedgwick County BRFSS data may not be representative of the
general population of Sedgwick County; however, they do provide a
snapshot of the current activity in Wichita/Sedgwick County.
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