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. 2022 Aug 15;40(38):5631–5640. doi: 10.1016/j.vaccine.2022.08.018

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© 2022 The Authors

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Fig. 3 — Anti-RBD titers at each time point according to age, sex, and body mass index category. (a) Box-and-whisker plot showing anti-RBD antibody titers by age category according to the Architect assay; (b) Box-and-whisker plot showing anti-RBD antibody titers by age category according to the Elecsys assay; (c) Box-and-whisker plot showing anti-RBD antibody titers by sex according to the Architect assay; (d) Box-and-whisker plot showing anti-RBD antibody titers by sex according to the Elecsys assay; (e) Box-and-whisker plot showing anti-RBD antibody titers by BMI category according to the Architect assay; (f) Box-and-whisker plot showing anti-RBD antibody titers by BMI category according to the Elecsys assay. BMI: Body mass index （kg/m²）; anti-RBD: anti-SARS-CoV-2 receptor binding domain spike protein IgG. Architect: Architect SARS-CoV-2 IgG Ⅱ Quant (Abbott Laboratories); Elecsys: Elecsys anti-SARS-CoV-2 S (Roche Diagnostics). S0: Within 1 week before the first vaccination, S1: Within 1 week before the second vaccination, S2: 4–5 weeks after the second vaccination, and S3: 6 months after the second vaccination. P values were calculated using the Jonckheere-Terpstra trend test.