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. 2021 Jul 3;205:84–91. doi: 10.1016/j.thromres.2021.06.022

Table 5.

Selected lab values at 0–1 days after COVID-19 diagnosis, after propensity matching. P value of 0.05 or lower is bolded as statistically significant.

Mean value in black COVID-19 (n = 40,147) Number of patients with result Mean value in white COVID-19 (n = 40,147) Number of patients with result T-value p-Value
Platelets (K/dL) 269.97 ± 117.8 17,244 250.71 ± 105.7 11,980 14.331 <0.0001
D-Dimer (DDU ng/mL) 1346.9 ± 2971 768 992.7 ± 2026 322 1.957 0.0506
Erythrocyte sedimentation rate (U/L) 55.94 ± 33.0 1588 41.83 ± 28.8 747 10.035 <0.0001
C-reactive protein (mg/L) 80.97 ± 88.7 6608 74.16 ± 78.6 3902 3.962 <0.0001
Ferritin (ng/mL) 1155.6 ± 4301 5315 797.60 ± 2147 2610 4.014 <0.0001
Oxygen saturation (%) 85.33 ± 20.6 4722 86.64 ± 18.8 1912 −2.424 0.0154