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Trends in vaccination schedules and up-to-date status of children 19-35 months, United States, 2015-2020.
Nguyen, Kimberly H; Zhao, Ruitong; Mullins, Corey; Corlin, Laura; Beninger, Paul; Bednarczyk, Robert A.
  • Nguyen KH; Department of Public Health & Community Medicine, Tufts University School of Medicine, Boston, MA, USA. Electronic address: kimberly.nguyen@tufts.edu.
  • Zhao R; Department of Public Health & Community Medicine, Tufts University School of Medicine, Boston, MA, USA.
  • Mullins C; Department of Public Health & Community Medicine, Tufts University School of Medicine, Boston, MA, USA.
  • Corlin L; Department of Public Health & Community Medicine, Tufts University School of Medicine, Boston, MA, USA; Department of Civil and Environmental Engineering, Tufts University School of Engineering, Medford, MA, USA.
  • Beninger P; Department of Public Health & Community Medicine, Tufts University School of Medicine, Boston, MA, USA.
  • Bednarczyk RA; Hubert Department of Global Health, Emory University Rollins School of Public Health, Atlanta, GA, USA; Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, USA; Emory Vaccine Center, Emory University, Atlanta, GA, USA.
Vaccine ; 41(2): 467-475, 2023 01 09.
Article in English | MEDLINE | ID: covidwho-2184274
ABSTRACT

OBJECTIVES:

To estimate trends in, and factors associated with, vaccination patterns and up-to-date immunization status of U.S. children by 19 to 35 months of age.

METHODS:

Data from the 2015 to 2020 National Immunization Surveys were used to assess trends in vaccination patterns, up-to-date status, and zero vaccination status of U.S. children by 19-35 months. Vaccination patterns were categorized as 1) recommended, 2) alternate, or 3) unknown or unclassifiable. Multivariable analyses were conducted to examine factors associated with each vaccination pattern and up-to-date status for all recommended vaccines.

RESULTS:

From 2015 to 2020, the proportion of U.S. children completing the recommended schedule increased from 62.5% to 69.4%, alternative schedule decreased from 21.6% to 16.2%, and unknown or unclassifiable schedules decreased from 15.9% to 14.3%. In addition, being not up-to-date decreased from 39.7% to 35.6%. There was no change in the percentage of children receiving zero vaccinations from 2015 to 2020 (0.9% to 0.9%). Respondents with lower household income or who were uninsured were more likely to follow an alternate or unknown/unclassifiable schedule, or not be up-to-date with vaccines.

CONCLUSION:

Following any schedule other than the recommended schedule was associated with not being up-to-date on immunizations. Increased efforts to catch up on recommended vaccines is important for protecting children's health. Further efforts should be made to improve timely adherence to recommended vaccination schedules, particularly among populations with the largest disparities in coverage through a tailored approach to increase confidence in and access to vaccines.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Vaccines / Vaccination Type of study: Observational study Topics: Vaccines Limits: Child / Humans / Infant Country/Region as subject: North America Language: English Journal: Vaccine Year: 2023 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Vaccines / Vaccination Type of study: Observational study Topics: Vaccines Limits: Child / Humans / Infant Country/Region as subject: North America Language: English Journal: Vaccine Year: 2023 Document Type: Article