Table 3 Antibody titers’ fold changes (FC) in previously infected and not previously infected cohorts of healthcare providers to monitor vaccine immune responses
Analyzed cohorts | Mean FC | Min FC | Max FC | n (%) |
|---|---|---|---|---|
PreViously infected subjects | ||||
Post I / Pre | 1.8 | 0.0 | 3.8 | 35 (100.0%) |
NotPreviously infected subjects | ||||
Post I / Pre | 1.6 | 0.0 | 3.6 | 158 (100.0%) |
Post II / Post I | 1.9 | 0.2 | 3.8 | 158 (100.0%) |
Post II / Pre | 3.5 | 1.4 | 3.8 | 158 (100.0%) |
Post II/Pre \( \overline{x} \) ≤ 3.1 | 2.6 | 1.4 | 3.1 | 30 (19.0%) |
Post II/Pre 3.1< \( \overline{x} \) ≤ 3.3 | 3.2 | 3.1 | 3.3 | 12 (7.6%) |
Post II/Pre 3.3< \( \overline{x} \) ≤ 3.8 | 3.7 | 3.3 | 3.8 | 116 (73.4%) |
Post II/Pre = 3.8 | 3.8 | 72 (45.6%) | ||