Table 1.
Association of selected factors with receipt of at least one dose of COVID-19 vaccination among VA enrollees between December 11, 2020 and March 9, 2021.
Fig 1.
Cumulative incidence of receiving vaccination by age category (a) or CCI category (b) and timing of second vaccination dose (c).
a. Kaplan-Meier cumulative incidence of vaccination from December 11, 2020 to March 9, 2021 by age group. b. Kaplan-Meier cumulative incidence of vaccination from December 11, 2020 to March 9, 2021 by Charlson Comorbidity Index (CCI) group. c. Distribution of the timing of the second doses of Pfizer-BioNTech and Moderna vaccines, shown as days from the recommended date (which is 21 days from the first dose for Pfizer-BioNTech and 28 days for Moderna).
Table 2.
Distribution of different COVID-19 vaccines administered by the VA healthcare system to VA enrollees from December 11, 2020 to March 9, 2021 and adherence to, and timing of the second dose of Pfizer and Moderna vaccinations among persons who received the first dose.
Table 3.
Association of selected factors with missing the second vaccine dose (i.e. no dose up to 42 days from first dose) among persons who had at least 42 days of follow-up from the first dose.
Table 4.
Associations of selected factors with receipt of Moderna versus Pfizer COVID-19 vaccination.