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Activity Number: 140
Type: Contributed
Date/Time: Monday, August 1, 2016 : 8:30 AM to 10:20 AM
Sponsor: Health Policy Statistics Section
Abstract #318636
Title: Missed Opportunities for Simultaneous Administration of the Fourth Dose of DTaP Among Children in the United States
Author(s): Zhen Zhao* and Philip J. Smith and Holly Hill
Companies: CDC and CDC and CDC
Keywords: simultaneous administration ; the fourth dose of DTaP ; missed opportunities ; risk factors ; children vaccination ; Healthy People 2020

Simultaneous administration of all age-appropriate doses of vaccines is an effective strategy for increasing vaccination coverage. Coverage for the fourth dose of DTaP (diphtheria, tetanus toxoids and acellular pertussis) among children 19-35 months has not reached the Healthy People 2020 target 90%. Risk factors for missed opportunities for simultaneous administration of the fourth dose of DTaP have not been fully investigated. A missed opportunity is defined as failure to administer an age eligible fourth dose of DTaP during the same provider visit. This study used 2001-2014 National Immunization Survey data to evaluate the risk factor for missed opportunities. The results indicated that 7.4% (7.2%, 7.6%) of children missed the opportunity in the U.S.; across all 13 risk factors considered the missed opportunities ranged from 3.3% to 22.9%; the Timeliness of the 1st through the 3rd dose of DTaP were the significant and modifiable risk factors both in binary and multivariate analyses, the adjusted risk ratios for late vs. on-time are 1.6, 1.7, and 3.2. Strategies to reduce missed opportunities should pay special attention to the timeliness of the first 3 doses of DTaP vaccination.

Authors who are presenting talks have a * after their name.

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