Data and Statistics
> Immunization Coverage in the U.S.
Immunization
Coverage in the U.S.
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At
a glance: Immunization
coverage - that is, estimates of the
number of people who have received particular
vaccines - is measured at national, state,
and local levels. Several surveys are
used to
--Identify
groups at risk of contracting vaccine-preventable
diseases
--Stimulate efforts
to increase coverage
--Evaluate how
well the efforts work |
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On this page: |
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| Related
information: |
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| National
Immunization Survey (NIS) |
The NIS is
a large, on-going survey of immunization coverage
among U.S. pre-school children (19 - 35 months
old).
The tables,
figures, and related articles in the table
below, describe vaccination coverage at the
US national level and by state and immunization
action plan (IAP) areas using results from
the National Immunization Survey (NIS).
Some NIS tables
are only available as Excel files.
| NIS
Data |
Tables
|
Articles |
Figures |
|
Jan
- Dec 03 NEW! |
03
|
03 |
03 |
|
July 02 - June
03 |
02/03
|
02/03 |
02/03 |
|
Jan
- Dec 02 |
02
|
02 |
02 |
|
July 01 - June
02 |
01/02
|
01/02 |
01/02 |
|
Jan
- Dec 01 |
01
|
01 |
01 |
|
July 00 - June
01 |
00/01
|
00/01 |
00/01 |
|
Jan
- Dec 00 |
00
|
00 |
00 |
|
July
99 - June 00 |
99/00
|
99/00 |
99/00 |
|
Jan
- Dec 99 |
99 |
99 |
99 |
|
July
98 - June 99 * |
98/99 |
98/99 |
98/99 |
|
Jan
- Dec 98 * |
98 |
98 |
98 |
|
Jan
- Dec 97 * |
97 |
97 |
97 |
|
July
96 - June 97 * |
96/97 |
96/97 |
96/97 |
|
Jan
- Dec 96 * |
96 |
96 |
96 |
|
Jan
- Dec 95 * |
95 |
95 |
95 |
|
July
94 - June 95 * |
94/95 |
94/95 |
94/95 |
|
April
- Dec 94 * |
94 |
94 |
94 |
|
* The statistical
methodology for estimating vaccination
coverage rates for NIS data was changed
in 1998. The new methodology facilitates
valid statistical analyses accounts for
the survey's complex sampling design. Small
differences exist between vaccination coverage
estimates appearing in MMWRs published
before 1998 and estimates published on
this website. More
information on methodologies...
All estimates
published on this website are calculated
using this new methodology. |
The National
Immunization Survey (NIS) has been conducted
annually since 1994 by the National Immunization
Program and the National Center for Health
Statistics, Centers for Disease Control and
Prevention. The NIS is used to obtain national,
state, and selected urban area estimates of
vaccination coverage rates for U.S. children
between the ages of 19 and 35 months. The NIS
is a random digit dialing telephone survey
of households with age-eligible children followed
by a mail survey of the children's vaccination
providers to validate immunization information.
For further
information, please visit the National Immunization
Survey website at http://www.nisabt.org/
| National
Health Interview Survey (NHIS) |
The
NHIS is a nationwide survey of adults and children,
providing information on vaccinations and other
health data.
The National Health Interview Survey (NHIS),
conducted since 1957 by the National Center
for Health Statistics (NCHS), Centers for Disease
Control and Prevention, is a continuing, nationwide
sample survey in which data are collected through
personal household interviews. Information
is obtained on personal and demographic characteristics,
including race and ethnicity, by self-reporting
or as reported by another household member.
Information is also obtained on illnesses,
injuries, impairments, chronic conditions,
health behaviors, access to health care and
utilization of health resources, and other
topics. A child immunization supplement has
been included in the NHIS since 1991, and the
survey is also an important source of information
about nationwide adult vaccination coverage.
Since 1994, the information collected from
households with children 12 to 35 months of
age has been supplemented with information
from health care provider records.
The
tables and articles below describe vaccination
coverage in adults in the United States for
influenza, pneumococcal, and tetanus vaccines,
using results from the National Health Interview
Survey (NHIS).
|
NHIS
Data |
Tables
|
Articles |
Figures |
|
1999
(provisional release) |
1999
|
Articles
Span Multiple Years |
N/A
|
| 1998 |
1998
|
|
1997 |
1997 |
For more information
about the NHIS, please visit the NCHS website
at http://www.cdc.gov/nchs/nhis.htm
| Behavioral
Risk Factor Surveillance System (BRFSS) |
State-based
survey of health behaviors of adults, including
adult vaccination at national, regional and
state levels.
The
Behavioral Risk Factor Surveillance Survey
(BRFSS) is a telephone survey conducted by
each state health department with technical
assistance from the National Centers for Chronic
Disease Prevention and Health Promotion, Centers
for Disease Control and Prevention.
The survey collects information on various
health behaviors and risk factors for disease,
including adult vaccinations.
Using random-digit dialing, each state
selects a random sample of its noninstitutionalized
adult population (ages >18 years) who have
telephones.
The
tables and articles below contain information
on adult immunization coverage derived from
the Behavioral Risk Factor Surveillance System
(BRFSS). The tables show influenza and
pneumococcal vaccine coverage for persons 65
years and older, by state and race/ethnicity;
the articles include state-specific coverage
rates.
For further
information, please visit the BRFSS website
at http://www.cdc.gov/brfss/.
A
direct link to the BRFSS Maps can be found
at http://apps.nccd.cdc.gov/gisbrfss/default.aspx.
*
Note: This file can be made accessible if needed.
Please contact NIPINFO
should this service be required.
| More
Information
on Population-Based Surveys |
The following
articles provide more information on the strengths
and limitations of the population-based surveys
described above.
- Forty
years and four surveys: How does our measuring
measure up?
Source: Am J Prev Med, 2001; 20 (4S)
6-14
abstract
- Population-based
surveys and their role in public health
Source: Am J Prev Med 2001; 20(4S) 15-16
(abstract not available online)
- The Impact
of Record Scattering on the Measurement of
Immunization Coverage.
Source: Pediatrics
Vol. 107 No. 1 January 2001, pp. 91-96
http://www.pediatrics.org/
- Comparison
of NIS and NHIS/NIPRCS vaccination coverage
estimates.
Source: Am J Prev Med, 2001; 20 (4 Suppl)
25-7
abstract
| Articles
on Immunization Coverage from Data from
Other Surveys |
Adult Immunization
Coverage Articles:
Child Immunization
Coverage Articles:
|
