Table II.

Association of thrombocytopenia upon admission and outcomes at Day 14 after admission to hospital for COVID‐19 pneumonia (n = 263).

	Admission to ICU, mechanical ventilation or death			Death
	N	Crude OR (95% CI)	Adjusted* OR (95% CI)	N	Crude OR (95% CI)	Adjusted* OR (95% CI)
Thrombocytopenia	43 (35·8%)	3·16 (1·74–5·87)	2·48 (1·17–5·23)	10 (52·6%)	3·79 (1·46–10·03)	2·70 (0·91–8·01)

CI, confidence interval; ICU, intensive care unit; OR, odds ratio.

^*Adjusted for the age (≥65 vs. <65 years), sex, presence of comorbidities (≥1 vs. 0, including hypertension, cardiovascular disease, cerebrovascular disease, chronic pulmonary diseases, chronic liver disease, chronic kidney disease, diabetes, cancer, obesity and immunosuppression), oxygen saturation ≤92% or need of oxygen therapy, lymphopenia (<1·5 × 10⁹/l), C‐reactive protein ≥5 vs. <5 mg/dl and severe extension of lesions on chest computed tomography scans (≥50% of lung parenchyma, vs. moderate or mild involvement defined by extension <50% of lung parenchyma). Missing values: oxygen saturation, n = 2; lymphocyte count, n = 35; platelet count, n = 10; C‐reactive protein, n = 9, extension of lesions on chest computed tomography scans, n = 10.