Table 2.

Clinical and biological characteristics at hospital admission of the 36 patients with hypoxemic pneumonia due to COVID-19.

		Co-infection
Characteristics	Total (n = 36)	No (n = 31)	Yes (n = 5)	P-value
Delay between diagnosis and onset of symptoms, median [25th–75th], days	5.5 [2.5–7]	5 [4–7]	6 [2–6]	.79
Body core temperature, median [25th–75th], °C	37.5 [37–38.7]	37.5 [37.2–38.6]	37.5 [36.7–38.5]	.79
Respiratory rate, median [25th–75th], breaths per min	24 [20–26]	22 [19–25]	27 [25–29]	.07
Herat rate, median [25th–75th], beats per min	85 [72–101]	81 [76–101]	89 [88–97]	.79
Oxyhemoglobin saturation, median [25th–75th], %	95 [94–97]	95 [95–97]	94 [92–96]	.35
Oxygen therapy, median [25th–75th], L/min	3 [1.8–4]	3 [2–4]	2 [1–3]	.56
Influenza-like illness, n (%)	15 (41.7)	14 (45.2)	1 (20)	.29
Asthenia, n (%)	14 (38.9)	14 (45.2)	0	.07
Cough, n (%)	24 (66.7)	21 (67.7)	3 (60)	.55
Chest pain, n (%)	4 (11.1)	4 (12.9)	0	.53
∗Acute respiatory failure, n (%)	5 (13.9)	4 (12.9)	1 (20)	.55
Dyspnea, n (%)	18 (50)	16 (51.6)	2 (40)	.5
Digestive disorders, n (%)	10 (27.8)	10 (32.3)	0	.17
Headache, n (%)	7 (19.4)	7 (22.6)	0	.32
Olfactory and or gustatory dysfunctions, n (%)	7 (19.4)	7 (22.6)	0	.32
Confusion, n (%)	2 (5.6)	2 (6.5)	0	.74
Leucocyte, median [25th–75th], G/L	5.6 [4.2–9.8]	5.22 [4.09–8.39]	10.4 [6.8–13.66]	.07
Polynuclear neutrophils, median [25th–75th], G/L	3.3 [2.3–6.6]	3.32 [2.65–5.77]	7.36 [5.4–10.86]	.15
Lymphocytes count, median [25th–75th], G/L	1.2 [0.85–1.49]	1.16 [0.81–1.415]	1.5 [1.22–1.93]	.16
Polynuclear neutrophils/Lymphocytes ratio	3.3 [2.3–6.6]	3.1 [2.3–6.1]	5.9 [3.8–7.2]	.42
Eosinophils, median [25th–75th], G/L	0.02 [0–0.13]	0.07 [0.01–0.09]	0.07 [0.01–0.09]	.825
Platelet count, median [25th–75th], G/L	182 [155–300]	181 [157–313]	264 [141–265]	.86
Hemoglobin level, median [25th–75th], g/dL	12.9 [12–13.8]	12.9 [11.9–13.8]	13.1 [12.8–13.4]	.42
D-dimer level, median [25th–75th], μg/mL	0.83 [0.51–1.33]	0.63 [0.51–1.12]	1.36 [1.34–2.36]	.05
Prothrombin time, median [25th–75th], %	79 [68–93]	79 [69–93]	73 [57–87]	.51
C-reactive protein, median [25th–75th], mg/dL	73.6 [18.3–113.1]	75.7 [23.5–111.4]	43 [14–87]	.6
Cardiac troponin I > 10 ng/L	8 (22.2)	7 (22.6)	1 (25)	.69
Bilirubin level, median [25th–75th], mg/dL	10.5 [9–13.8]	10 [9–12]	16 [11–19.5]	.29
Serum albumin, median [25th–75th], g/L	26 [24.5–29.5]	26 [24–30]	28.3 [28.3–28.9]	.48
paO2, median [25th–75th], mmHg	83 [76–105]	83 [76–104]	99 [88–111]	.62
paCO2, median [25th–75th], mmHg	36 [33–40]	36 [33–40]	36 [34–40]	.89
Lactate dehydrogenase, median [25th–75th], IU/L	376 [285–429]	376 [287–429]	323 [286–361]	.63
Aspartate aminotransferase level, median [25th–75th], U/L	58 [36–76]	56 [38–68]	71 [57–87]	.43
Creatinine, median [25th–75th], μmol/L	87 [66–95]	86 [70.4–95]	93 [64–105]	.48

Results are expressed at n (%) or median [25th–75th] as appropriate.

PaCO₂ = Arterial partial pressure of carbon dioxide, PaO₂ = Arterial oxygen partial.

^∗invasive mechanical ventilation or high-flow nasal cannula oxygen therapy.