Table 4.

Association between incidence of severe COVID-19 with NLR by logistic regression (N = 210)

NLR	Severe/Total (%)	Crude OR (95% CIs)	Model 1 OR (95% CIs)	Model 2 OR (95% CIs)
Tertile 1 (0.6–2.5)	9 (10.3%)	1 (reference)	1 (reference)	1 (reference)
Tertile 2 (2.6–5.0)	32 (36.8%)	4.1 (1.7–10.2)	2.5 (0.8–7.5)	1.6 (0.5–5.9)
Tertile 3 (5.1–19.7)	46 (52.9%)	10.1 (4.0–25.6)	7.8 (2.3–26.4)	5.9 (1.3–28.5)

Data are presented as n (%) or OR (95% CI). Model 1 was adjusted for age, C-reactive protein, interleukin-6, procalcitonin, diabetes and hypertension. Model 2 was further adjusted for LDH, WBC, D-dimer, CD4+ T cells, CD8+ T cells. COVID-19, coronavirus disease 2019; NLR, neutrophil-to-lymphocyte ratio.