Table 1.

Baseline Characteristics of All Asymptomatic SARS-CoV-2 Infections.

	Total (N = 82)	Cancer patients (n = 67) (%)	Caregivers (n = 15) (%)	P Value	Paired Cancer patients (n = 51) (%)	Paired Caregivers (n = 51) (%)	P Value
Age, median (IQR), y	58	58	56	0.490	58 (50–64)	53 (43–63)	0.063
Age, y				0.616			0.537
≤60	51	40 (59.7)	11 (73.3)		31 (60.8)	34 (66.7)
>60	31	27 (40.3)	4 (26.7)		20 (39.2)	17 (33.3)
Sex				0.917			0.303
Female	54	45 (67.2)	9 (60.0)		35 (68.6)	30 (58.8)
Male	28	22 (32.8)	6 (40.0)		16 (31.4)	21 (41.2)
Clinical manifestations (in last 3 months)
Fever	3	2 (3.0)	1 (6.7)	0.492	2 (3.9)	0 (0.0)	0.153
Cough	1	1 (1.5)	0 (0.0)	0.634	1 (2.0)	0 (0.0)	0.315
Chest pain	1	1 (1.5)	0 (0.0)	0.634	0 (0.0)	0 (0.0)	1.000
Chronic diseases
Hypertension	13	12 (17.9)	1 (6.7)	0.281	12 (23.5)	3 (5.9)	0.012
Diabetes	4	3 (4.5)	1 (6.7)	0.722	4 (7.8)	1 (2.0)	0.169
Cardiovascular disease	1	1 (1.5)	0 (0.0)	0.634	1 (2.0)	0 (0.0)	1.000
COPD	2	2 (3.0)	0 (0.0)	0.488	2 (3.9)	0 (0.0)	0.153
Chronic kidney disease	2	2 (3.0)	0 (0.0)	0.488	1 (2.0)	0 (0.0)	0.315
Chronic liver disease	3	2 (3.0)	1 (6.7)	0.492	2 (3.9)	1 (2.0)	0.558
Leucocytes (× 10⁹ per L; normal range 4.0–10.0)				0.625			0.125
Increased	2	1 (1.5)	1 (6.7)		2 (3.9)	0 (0.0)
Decreased	3	3 (4.5)	0 (0.0)		2 (3.9)	0 (0.0)
Lymphocytes (× 10⁹ per L; normal range 1•1–3•2)				0.706			0.213
Increased	1	1 (1.5)	0 (0.0)		1 (2.0)	0 (0.0)
Decreased	2	2 (3.0)	0 (0.0)		2 (3.9)	0 (0.0)
Chest CT findings				0.371			0.012
Suspicious	8	8 (11.9)	0 (0.0)		6 (11.8)	0 (0.0)
Unsuspicious	74	59 (88.1)	15 (100.0)		45 (88.2)	51 (100.0)

Note: IQR: interquartile range; COPD: chronic obstructive pulmonary disease; P<0.05 indicates that the difference was statistically significant.