IL6 and pericardial effusion: The odds of having a pericardial effusion were estimated to be 1.98 times higher per doubling of IL-6 (95% CI, 0.85–4.63; P = 0.12), 1.35 times higher per doubling of hsCRP (95% CI, 0.75–2.43; P = 0.32), and 1.87 times higher per doubling of SARS-CoV-2 antibody levels (95% CI, 0.92–3.81; P = 0.09), though none of these results reached statistical significance.