Measurement of vaccination coverage at age 24 and 19-35 months: a case study of multiple imputation in public health.

ABSTRACT:

Aim

Childhood immunization coverage in the United States (US) is often measured at age 24 months or, in the National Immunization Survey (NIS) at age of interview, which is between 19 and 35 months. This paper compares these standards.

Methods

Data from the NIS is used to compare immunization coverage at time of interview, retrospectively among all children aged 24 or more months at time of interview, and obtained via multiple imputation (with 10 imputations) for all children, both nationally, by state, and by demographic groups.

Results

At the national level, the difference between the 19-35 month estimate and the 24 month complete-case estimate was 1.9 percentage points. For most but not all states and subgroups, the 19-35 month estimate was higher than the 24 month

SUBMITTER: Santibanez TA 

PROVIDER: S-EPMC1190214 | biostudies-literature | 2005 Jul

REPOSITORIES: biostudies-literature