Objective: To determine providers' perceptions of a statewide immunization
registry.
Design: Mail survey.
Setting: King County, Washington.
Methods: A random sample of 700 pediatricians, family physicians, and RN/NP
s were surveyed. In addition to their perceptions of registries, respondent
s reported their immunization procedures in the absence of immunization his
tories.
Results: Of 544 eligible participants, 344 returned surveys (63% response r
ate). Seventy-seven percent of RN/NPs, 60% of pediatricians and 47% of fami
ly physicians (p < 0.001) responded that they thought that electronic immun
ization registries represented the "best chance to solve the lack of docume
ntation problem." Fifty-seven percent of RN/NPs, 61% of pediatricians, and
43% of family physicians reported that the incompleteness of registry data
presented a barrier to their using one (p < 0.01). Fewer than 14% of all sp
ecialties had concerns about potential compromises of patient confidentiali
ty as a result of registries, although RN/NPs were more concerned about thi
s possibility than both pediatricians and family physicians (p = 0.02). In
a multivariate analysis, pediatricians were 43% less likely (p = 0.15) and
family physicians were 73% less likely (p < 0.01) than RN/NPs to think regi
stries are the solution to the lack of documentation problem, Familiarity w
ith the existing registry was associated with a significant decrease in the
likelihood of thinking that registries are the solution (OR .49 [.26-.90])
and an increase in the likelihood of thinking that registries will take a
long time to become of practical value (OR 2.21 [1.09-4.29]),
Conclusions: Specialties differ with respect to their opinions regarding th
e promise immunization registries hold. Immunization registries appear to b
e well regarded in theory but may disappoint in practice. Incompleteness of
immunization data may be the largest obstacle for registries to overcome.