Table 4

Discrepancies for 11–17-year-olds in MMR, hepatitis B, and varicella immunization data in provider records and the immunization registry.


Current registry user sites
N = 6 sites, 143 matched records
Future direct-EMR-transfer sites
N = 7 sites, 180 matched records




% with
discrepancy
Range among provider sites
% with
discrepancy
Range among provider sites

MMR




     Discrepancy in whether subject is up-to-date for MMR immunization
19.6
9.5–43.5
14.4
5.3–36.4
     Discrepancy in number of MMR immunizations received by subject
18.2
9.5–43.5
11.1
0–31.8
     Discrepancy in date of any MMR immunization in series
22.4
5.3–33.3
16.1
7.5–38.1
Hepatitis B




     Discrepancy in whether subject is up-to-date for hepatitis B immunization
29.4
9.5–82.6
13.9
5.3–31.8
     Discrepancy in number of hepatitis B immunizations received by subject
27.3
10.0–78.3
12.8
4.8–22.7
     Discrepancy in date of any hepatitis B immunization in series
16.8
10.5–23.8
16.1
5.3–29.4
Varicella




     Discrepancy in whether subject is up-to-date for varicella immunization
69.2
23.8–100
63.9
57.5–82.4
     Discrepancy in number of varicella immunizations received by subject*
30.4
20.0–80.0
7.6
0–20.0
     Discrepancy in date of any varicella immunization in series*
3.6
0–10.0
2.9
0–20.0

*Excludes provider records with documentation of varicella disease.

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