tetano
Editor, Senior Moderator
Emerg Infect Dis
. 2022 Jul 7;28(8).
doi: 10.3201/eid2808.220557. Online ahead of print.
Factors Associated with Delayed or Missed Second-Dose mRNA COVID-19 Vaccination among Persons >12 Years of Age, United States
Lu Meng, Neil Chandra Murthy, Bhavini Patel Murthy, Elizabeth Zell, Ryan Saelee, Megan Irving, Hannah E Fast, Patricia Castro Roman, Adam Schiller, Lauren Shaw, Carla L Black, Lynn Gibbs-Scharf, LaTreace Harris, Terence Chorba
Abstract
To identify demographic factors associated with delaying or not receiving a second dose of the 2-dose primary mRNA COVID-19 vaccine series, we matched 323 million single Pfizer-BioNTech (https://www.pfizer.com) and Moderna (https://www.modernatx.com) COVID-19 vaccine administration records from 2021 and determined whether second doses were delayed or missed. We used 2 sets of logistic regression models to examine associated factors. Overall, 87.3% of recipients received a timely second dose (≤42 days between first and second dose), 3.4% received a delayed second dose (>42 days between first and second dose), and 9.4% missed the second dose. Persons more likely to have delayed or missed the second dose belonged to several racial/ethnic minority groups, were 18-39 years of age, lived in more socially vulnerable areas, and lived in regions other than the northeastern United States. Logistic regression models identified specific subgroups for providing outreach and encouragement to receive subsequent doses on time.
Keywords: 2019 novel coronavirus disease; 2019-nCoV vaccine mRNA; COVID-19; Moderna COVID-19 vaccine; SARS-CoV-2; coronavirus disease; mRNA vaccine; respiratory infections; severe acute respiratory syndrome coronavirus 2; vaccination; vaccine delay; vaccine timing; vaccines; viruses; zoonoses.
. 2022 Jul 7;28(8).
doi: 10.3201/eid2808.220557. Online ahead of print.
Factors Associated with Delayed or Missed Second-Dose mRNA COVID-19 Vaccination among Persons >12 Years of Age, United States
Lu Meng, Neil Chandra Murthy, Bhavini Patel Murthy, Elizabeth Zell, Ryan Saelee, Megan Irving, Hannah E Fast, Patricia Castro Roman, Adam Schiller, Lauren Shaw, Carla L Black, Lynn Gibbs-Scharf, LaTreace Harris, Terence Chorba
- PMID: 35798008
- DOI: 10.3201/eid2808.220557
Abstract
To identify demographic factors associated with delaying or not receiving a second dose of the 2-dose primary mRNA COVID-19 vaccine series, we matched 323 million single Pfizer-BioNTech (https://www.pfizer.com) and Moderna (https://www.modernatx.com) COVID-19 vaccine administration records from 2021 and determined whether second doses were delayed or missed. We used 2 sets of logistic regression models to examine associated factors. Overall, 87.3% of recipients received a timely second dose (≤42 days between first and second dose), 3.4% received a delayed second dose (>42 days between first and second dose), and 9.4% missed the second dose. Persons more likely to have delayed or missed the second dose belonged to several racial/ethnic minority groups, were 18-39 years of age, lived in more socially vulnerable areas, and lived in regions other than the northeastern United States. Logistic regression models identified specific subgroups for providing outreach and encouragement to receive subsequent doses on time.
Keywords: 2019 novel coronavirus disease; 2019-nCoV vaccine mRNA; COVID-19; Moderna COVID-19 vaccine; SARS-CoV-2; coronavirus disease; mRNA vaccine; respiratory infections; severe acute respiratory syndrome coronavirus 2; vaccination; vaccine delay; vaccine timing; vaccines; viruses; zoonoses.