Immunization Index  |  Data and Statistics


Private Provider
Immunization Assessments in Indiana

2001 Assessment Results

Indiana State Department of Health

Gregory A. Wilson, M.D., State Health Commissioner
M. Elizabeth Carroll, J.D., Deputy State Health Commissioner
Community and Family Health Services Commission
Wendy Gettelfinger, R.N., D.N.S., J.D., Assistant Commissioner
Immunization Program
Michael Runau, M.S., Program Director
Charlene Graves, M.D., Medical Director

Primary Author

Megan Steiger, M.P.H., Epidemiologist
Immunization Program
Indiana State Department of Health
2 North Meridian Street
Indianapolis, IN 46204
Publication Date: 08/2003

Preface

The Private Provider Assessments in Indiana report summarizes the results of 502 assessments of immunization practices completed in the private health care sector for 2001. The assessments were conducted from January through December 2001 in private provider practices including single and multiple physician practices who were enrolled in the Vaccines for Children (VFC) Program. In the 502 assessments, there were 35 sites who received more than one Clinical Assessment Software Application-based (CASA) assessment during the calendar year of 2001.

In order to be considered completely immunized by age two, each child must have received 4 vaccinations for diphtheria, tetanus, and acellular pertussis (DTaP), 3 vaccinations for polio, the first measles, mumps and rubella vaccine (MMR), at least 3 vaccinations for Haemophilus influenzae type b (Hib), and 3 vaccinations for hepatitis B (Hep B). The data contained in the report represents the immunization coverage levels of children who were 24 to 35 months of age at the time of the assessment.

Highlights

Table 1. Summary of VFC-enrolled private provider assessment results, Indiana, 2001.

Number of private providers assessed:

502*

Number of physicians included in the assessments:

1063

Number of counties where private provider CASA assessments were completed:

72

Number of two-year old children included in assessments:

10,992

Estimated number of two-year old children who are active patients in practices assessed:

19,588

Percent of these provider’s estimated two-year old patient population assessed:

56.1%

*Includes three CASAs using Hybrid Method (unable to do statistical analysis on this methodology, therefore, not included in these statistics).

Table 2. Summary of individual antigen and vaccination series completion levels, by 24 months of age, VFC-enrolled private provider assessments, Indiana, 2001.


Total

% complete

INDIVIDUAL ANTIGENS

3 DTaP (Diphtheria, Tetanus, Pertussis)

95.0

4 DTaP (Diphtheria, Tetanus, Pertussis)

78.8

3 Polio (Oral and Inactivated)

87.0

1 MMR (Measles, Mumps, and Rubella)

86.5

3 Haemophilus influenzae type b (Hib)

93.1

3 HepB (Hepatitis B)

89.7

VACCINATION SERIES

4 DTaP: 3 Polio: 1 MMR

74.8

4 DTaP: 3 Polio: 1 MMR: 3 Hib

73.7

4 DTaP: 3 Polio: 1 MMR: 3 Hib: 3 HepB

71.6




Figure 1: Mean private provider 4:3:1, 4:3:1:3 and 4:3:1:3:3 coverage levels; 1998 (n=112), 1999 (n=215), 2000 (n=438), and 2001 (n=499*).

graph

* Includes three CASAs using Hybrid Method (unable to do statistical analysis on this methodology, therefore, not included in these statistics).

Figure 2: 4:3:1:3 coverage levels at 24 months of age, private provider assessments, Indiana, 2000 and 2001.

Table 3: Drop in coverage for DTaP and hepatitis B vaccination series, private provider assessments (n=499*), Indiana, 2001.


Median % drop

per provider



Drop in coverage between the first DTaP by 12 months of age and the fourth DTaP by 24 months of age

22.8 %


Drop in coverage between the first HepB by 12 months of age and the third HepB by 24 months of age

6.1 %

* Includes three CASAs using Hybrid Method (unable to do statistical analysis on this methodology, therefore, not included in these statistics).

graph
Figure 3. Median coverage levels of successive DTaP vaccinations, private provider assessments (n=499*), Indiana, 2001.

* Includes three CASAs using Hybrid Method (unable to do statistical analysis on this methodology, therefore, not included in these statistics).

Recommendations and Conclusions

Data in this report was collected from 502 CASA-based assessments completed in private provider offices throughout Indiana
by the Indiana State Department of Health’s Immunization Program.