2000 Health Insurance Coverage Status by Age for Counties and States: County File Record Layout
FIPS state code (00 for U.S. record)
FIPS county code (000 for U.S. record and 00 for state level records)
Postal state abbreviation
State or county name
Number of insured all ages
Number of uninsured all ages
90% confidence interval of number insured/uninsured all ages (±)
Percent of uninsured all ages
90% confidence interval of percent uninsured all ages (±)
Number of insured under age 18
Number of uninsured under age 18
90% confidence interval of number insured/uninsured under age 18 (±)
Percent of uninsured under age 18
90% confidence interval of percent uninsured under age 18 (±)
File name and creation date
The width of the confidence intervals for the number insured and the number uninsured are the same. This follows from the fact that the two numbers must add to a known population. A random deviation in one must thus be mirrored exactly in the other, so a measure of variability like the standard deviation must be the same.
For certain counties the lower confidence bound may be less than zero.
Due to rounding, the sum of the county estimates within a state may not equal the state estimate and the sum of the state estimates may not equal the national estimate from the Annual Social and Economic Supplement of the Current Population Survey.