Table 2.

Clinical negative factors for COVID-19 infection (factors favouring infection)

Predictive factor	p-value	RR (95% CI)
Female sex	0.005	4.5 (1.3–15.8)
Comorbidities	0.336	1.9 (0.6–6.4)
BMI > 25	1.0	0.9 (0.4–2.2)
Cancer dissemination	0.406	0.7 (0.3–1.5)
Gastrointestinal cancer	0.670	1.3 (0.6–2.7)
Systemic therapy with no platin derivatives	0.650	0.5 (0.2–1.8)
Leukocytosis	1.0	0.9 (0.3–2.8)
Thrombocytopaenia	1.0	1.3 (0.5–3.4)
NLR < 4.83	0.087	0.3 (0.1–1.2)
PLR < 180.4	0.141	3.2 (0.5–19.4)
Elevated CRP in men	0.133	0.0

BMI – body mass index, NLR – neutrophil-to-lymphocyte ratio, PLR – platelet- to-lymphocyte ratio, CRP – C- reactive protein