Table 3.

The logistic regression model for SARS-CoV-2 infection in hemodialysis patients

Variable	Frequency, %	Univariable model			Multivariable modela
		Odds ratio	95% CI	P	Odds ratio	95% CI	P
Province: Hubei	63.5	1.27	0.70–2.31	0.44	1.59	0.80–3.16	0.18
Sex: female	43.4	0.91	0.52–1.60	0.74	0.91	0.51–1.63	0.76
Age: >65 yr	34.2	2.42	1.38–4.24	0.002	2.17	1.22–3.87	0.009
Respiratory symptom: yes	1.5	2.86	0.65–12.5	0.16	2.46	0.50–12.1	0.27
CT sign of lung infection: yes	20.8	3.58	2.04–6.30	9×10–6	2.96	1.65–5.33	0.0003
Lymphocyte count: <1 × 109/l	42.8	1.65	0.94–2.90	0.08	1.47	0.82–2.63	0.19
CRP: >10 mg/l	10.1	1.70	0.78–3.68	0.18	1.05	0.45–2.45	0.91
Hemoglobin: <90 g/l	21.1	0.79	0.38–1.64	0.53	0.46	0.21–1.03	0.058
Serum albumin: <35 g/l	8.2	3.29	1.64–6.58	0.0008	3.37	1.53–7.40	0.002
Comorbidity: yes	76.2	0.74	0.40–1.37	0.34	0.76	0.40–1.45	0.40

CI, confidence interval; CRP, C-reactive protein; CT, computed tomography; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.

^aThe multivariable logistic regression model included all the variables listed in the table as the independent variables.