Normal Range
Total (N = 155)
Pregnant COVID-19 patients (n = 31)
Non-Pregnant COVID-19 patients (n = 124)
P Value
Leucocytes counts,× 10⁹/L 4-10 5.9 (5.1, 7.2) 8.0 (6.5, 11.4) 5.6 (4.6, 6.4) <.001
<4 NA 10/147 (6.8%) 1/31 (3.2%) 9/116 (7.8%) <.001
4–10 NA 124/147 (84.4%) 21/31 (67.7%) 103/116 (88.8%)
>10 NA 13/147 (8.8%) 9/31 (29.0%) 4/116 (3.4%)
Neutrophil counts,× 10⁹/L 1.8-6.3 3.4 (2.7, 4.7) 6.2 (4.7, 8.7) 3.1 (2.5, 3.9) <.001
Lymphocyte counts,× 10⁹/L 1.0-3.2 1.7 (1.3, 2.0) 1.3 (1.1, 1.6) 1.8 (1.4, 2.1) <.001
<1·0 NA 11/147 (7.5%) 4/31 (12.9%) 7/116 (6.0%) .364
≥1·0 NA 136/147 (92.5%) 27/31 (87.1%) 109/116 (94.0%)
Monocyte,× 10⁹/L 0.1-0.6 0.4 (0.3, 0.5) 0.4 (0.3, 0.6) 0.4 (0.3, 0.5) .022
Platelet counts,× 10⁹/L 125-350 226.5 (188.5, 267.5) 233.2 (194.0, 259.5) 226.0 (188.2, 270.8) .716
<100 NA 2/147 (1.4%) 0 2/116 (1.7%) 1.000
≥100 NA 145/147 (98.6%) 31/31 (100.0%) 114/116 (98.3%)
Hemoglobin, g/L 115-150 123.0 (115.7, 131.0) 117.0 (105.0, 122.0) 126.0 (117.0, 132.3) <.001
Albumin, g/L 40-55 41.7 (38.6, 43.2) 37.2 (35.2, 38.8) 42.1 (40.5, 43.7) <.001
Creatine kinase, U/L <171 42.3 (31.0, 57.7) 33.7 (20.2, 67.5) 42.8 (33.0, 56.2) .312
≤185 NA 140/140 (100.0%) 28/28 (100.0%) 112/112 (100.0%)
>185 NA 0 0 0
Lactate dehydrogenase, U/L 125-245 179.0 (146.0, 204.2) 202.5 (181.3, 220.5) 168.5 (140.7, 199.0) <.001
≤245 NA 129/140 (92.1%) 24/28 (85.7%) 105/112 (93.8%) .307
>245 NA 11/140 (7.9%) 4/28 (14.3%) 7/112 (6.3%)
Alanine aminotransferase, U/L 7-40 18.6 (11.3, 27.1) 14.0 (10.6, 26.1) 19.5 (12.0, 28.1) .137
Aspartate aminotransferase, U/L 13-40 19.0 (15.2, 24.0) 20.2 (15.2, 28.0) 19.0 (15.2, 23.0) .434
≤40 NA 138/142 (97.2%) 28/28 (100.0%) 110/114 (96.5%) .585
>40 NA 4/142 (2.8%) 0 4/114 (3.5%)
Total bilirubin, mmol/L 0-23 9.3 (7.5, 11.7) 8.7 (7.5, 11.9) 9.3 (7.6, 11.7) .788
Blood urea nitrogen, mmol/L 3.1-8.8 3.63 (3.1, 4.3) 3.0 (2.6, 3.6) 3.7 (3.2, 4.4) <.001
Serum creatinine, μmol/L 41-81 48.0 (42.0, 53.0) 43.2 (38.0, 48.7) 49.0 (42.7, 53.7) .003
≤133 NA 139/140 (99.3%) 28/28 (100.0%) 111/112 (99.1%) 1.000
>133 NA 1/140 (0.7%) 0 1/112 (0.9%)
Potassium, mmol/L 136-147 3.9 (3.8, 4.2) 3.9 (3.7, 4.0) 4.0 (3.8, 4.3) .043
Sodium, mmol/L 3.5-5.5 140.4 (139.0, 142.0) 140.0 (138.0, 142.3) 140.4 (139.0, 142.0) .514
C-reactive protein, mg/L 0-3 0.5 (0.5, 6.8) 17.7 (3.5, 27.3) 0.5 (0.5, 0.5)^ <.001
Procalcitonin, ng/mL < 0.5 NA 0.06 (0.04, 0.09) NA&
Hypersensitive troponin I, ng/mL 0-0.04 NA 0.006 (0.006, 0.006)^ NA&
Bilateral distribution of patchy shadows or ground glass opacity NA 109/155 (70.3%) 27/31 (87.0%) 88/124 (70.9%) .077