Immunization Index  |  Data and Statistics

Private Provider Immunization Assessments in Indiana

2002 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


The Private Provider Assessments in Indiana report summarizes the results from 538 assessments of immunization practices completed in the private health care sector in Indiana for 2002. The assessments were conducted from January through December 2002 in private provider practices, including single and multiple physician practices who were enrolled in the Vaccines for Children (VFC) Program. In the 538 assessments, there were 30 sites who received more than one Clinical Assessment Software Application-based (CASA) assessment during the calendar year of 2002.

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 (HepB). The data contained in this report represents the immunization coverage levels of children who were 24 to 35 months of age at the time of the assessment.


Summary Tables and Graphs

Table 1. Summary of private provider assessment results, Indiana, 2002.

Number of private providers assessed: 538
Number of physicians included in the assessments: 1,027
Number of counties where private provider CASA assessments were completed: 78
Number of two-year old children included in assessments: 11,143
Estimated number of two-year old children who are active patients in practices assessed: 24,545
Percent of these provider’s estimated two-year old patient population assessed: 45.4%

Table 2. Summary of individual antigen and vaccination series completion levels, by 24 months of age,

private provider assessments (n=538), Indiana, 2002.


% complete
3 DTaP (Diphtheria, Tetanus, Pertussis) 97.0
4 DTaP (Diphtheria, Tetanus, Pertussis) 82.9
3 Polio (Oral and Inactivated) 47.0
1 MMR (Measles, Mumps, and Rubella) 89.9
3 Haemophilus influenzae type b (Hib) 95.0
3 HepB (Hepatitis B) 90.9
4 DTaP: 3 Polio: 1 MMR 79.6
4 DTaP: 3 Polio: 1 MMR: 3 Hib 79.3
4 DTaP: 3 Polio: 1 MMR: 3 Hib: 3 HepB 76.8
figure 1

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), 2001 (n=499*) and 2002 (n=538) assessments.

*Includes 3 CASAs using hybrid method (unable to do statistical analysis on this methodology, therefore, not included in these statistics).

Figure 2: 4 DTaP: 3 Polio: 1 MMR: 3 Hib coverage levels at 24 months of age, private provider assessments, Indiana, 2001 (n=502) and 2002 (n=538).


Table 3. Drop in coverage for DTaP and hepatitis B vaccination series, private provider Assessments (n=538), Indiana, 2002.

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 14.9 %
Drop in coverage between the first HepB by 12 months of age and the third HepB by 24 months of age 4.8 %

Figure 3: Median coverage levels of successive DTaP vaccinations, private provider assessments (n=538), Indiana, 2002.

Recommendations and Conclusions

Data in this report was collected from 538 CASA-based assessments completed in private provider offices throughout Indiana by the Indiana State Department of Health’s Immunization Program.