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. 2023 May 5;133:18–26. doi: 10.1016/j.ijid.2023.04.407

Figure 2.

Figure 2

Factors associated with March 2022 S- or N-IgG, N-Ab titers, or S- or M/N-T cell IFN-gamma levels. Multivariable linear regression modeling was used to assess the relationship between gender (female vs male), age group (65+ vs 16-64 years), reporting a previous SARS-CoV-2 infection (positive polymerase chain reaction or antigen test) (yes vs no), and the number of COVID-19 vaccine doses received (1, 2, 3+ vs 0), and S- or N-IgG, N-Ab mean fluorescence intensity ratio titers, or S- or M/N-T cell IFN-gamma levels (natural logarithm-transformed). *P >0.05, ** P >0.01, *** P >0.005. CI, confidence interval; IFN, interferon; Ig, immunoglobulin; M, membrane; N, nucleocapsid; N-Ab, neutralizing antibody; S, spike; TC, T cell; WT, wildtype.