Table 2

Discrepancies in pertussis-related immunization data between provider records and the immunization registry.

Current registry user sites

Future direct-EMR-transfer sites



n

% with discrepancy

Range among provider sites

n

% with discrepancy

Range among provider sites


Discrepancies in pertussis-related immunization series

Discrepancy in whether subject is up-to-date for pertussis-related immunizations

288

22.6

12.4–45.7

377

4.0

0–18.6

Discrepancy in number of pertussis-related immunizations received by subject

288

34.7

19.8–60.1

377

11.9

5.0–30.2

Any present in provider record but not in registry

288

27.8

11.9–60.9

377

0.3

0–1.2

Any present in registry but not in provider record

288

9.7

4.8–17.5

377

0.3

0–1.2

Discrepancy in date of any pertussis-related immunization in series

288

23.6

13.2–35.0

377

18.0

10.9–36.9

Discrepancy in formulation of any pertussis-related immunization in series

288

11.1

0–24.4

377

5.3

0–23.3

Discrepancies in pertussis-related immunizations

Date discrepancy

1410

10.2

6.1–15.8

1848

8.0

5.5–17.0

Discrepancy of 1–29 days

1410

9.0

4.5–15.3

1848

6.6

3.0–16.5

Discrepancy of 1–11 months

1410

0.9

0–1.5

1848

0.8

0–2.0

Discrepancy of ≥ 1 year

1410

0.4

0–0.5

1848

0.5

0–1.5

Discrepancy in formulation

34.4

11.8–50.1

29.1

17.6–36.9

Discrepancy in whether pertussis-related immunization contained pertussis vaccine (vs diphtheria-tetanus only)

1410

0.6

0–2.0

0.4

0–1.2

Discrepancy in manufacturer, among those with manufacturer noted in provider record

468

100

NA

645

94.4

76.2–100

Discrepancy in lot number, among those with lot number noted in provider record)

539

100

NA

693

95.1

37.5–100


Mahon et al. BMC Public Health 2008 8:160   doi:10.1186/1471-2458-8-160

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