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. 2022 Feb 9;20(8):1881–1883.e1. doi: 10.1016/j.cgh.2022.01.056

Figure 1.

Figure 1

Antibody change with additional vaccination in patients with inflammatory bowel disease by vaccine type (BNT162b2 vs messenger RNA [mRNA]-1273). The red diamond represents the mean antibody level, the green line represents the median, the box indicates the interquartile range, and the bottom line and top line indicate the lower extreme and upper extreme values, respectively (excluding outliers). Quantitative measurement of anti–receptor binding domain IgG antibodies specific to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) were performed using the LabCorp Cov2Quant IgG assay. The dashed line represents the level suggestive of serologic response to vaccination (1.0 μg/L). Results of 1.0 μg/mL (lower limit of quantitation) or greater suggest vaccination and/or prior infection with SARS-CoV-2. NIH, National Institutes of Health.