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Table 2 Laboratory studies at presentation with COVID-19, subdivided by the outcome of the hospital stay where available (n = 410)

From: COVID-19: a retrospective cohort study with focus on the over-80s and hospital-onset disease

 All patients (n = 450)By outcome of hospital stay, where available (n = 410)p value for comparison
Discharged (n = 237)Died (n = 173)
Lymphocyte count0.84 (0.58, 1.23)0.91 (0.67, 1.28)0.78 (0.535, 1.14)0.009
Neutrophil count5.72 (3.84, 8.61)5.32 (3.48, 7.82)6.6 (4.178, 9.750)0.001*
Neutrophil: lymphocyte ratio221.5 (112.8, 333.2)217 (117, 323)239 (106.5, 343.5)0.676
CRP99 (46, 176.5)68 (31, 140)131 (74, 199)< 0.001*
CRP > 100, n (%)221 (49)83 (35)108 (62)< 0.001*
Procalcitonin0.26 (0.13, 0.73)0.20 (0.11, 0.44)0.37 (0.17, 1.35)< 0.001*
Troponin23 (9, 50)12 (6, 33)42 (20, 71.5)< 0.001*
Lactate1.3 (0.9, 1.8)1.2 (0.9, 1.6)1.5 (1.1, 2.25)< 0.001*
D-dimer1294 (616.5, 2429.8)1186 (535, 2340)1577 (814, 2548)0.014
Glucose6.6 (5.8, 8.3)6.5 (5.575, 8.0)6.9 (5.9, 8.625)0.017
Acute kidney injury, n (%)85 (19)24 (10)54 (31)< 0.001*
  1. Comparisons between those who died and those who were discharged used the Kruskal-Wallis test or the chi-squared test as appropriate. The Bonferroni method was used to correct for multiple comparisons, and therefore, a stringent p value cutoff of 0.05/12 = 0.0042 was used to assess significance (indicated by *)