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. 2020 Dec 3;21:251. doi: 10.1186/s12875-020-01322-7

Table 1.

Patient characteristics

Total (n = 374) COVID-19 negative (n = 334) COVID-19 positive (n = 40) P-value
Age 0.147*
 MV (SD) 47.0 (20.2) 46.4 (19.7) 52.4 (23.5)
 Median (Q1-Q3) 44.0 (31.0–59.0) 43.5 (31.0–58.0) 52.0 (31.2–73.2)
 Missing, n (%) 4 (1.1) 4 (1.2) 0 (0.0)
Gender, n (%) 0.475
 Male 154 (41.2) 140 (41.9) 14 (35.0)
 Female 217 (58.0) 191 (57.2) 26 (65.0)
 Missing 3 (0.8) 3 (0.9) 0 (0.0)
Reason for testing, n (%) < 0.001
 First grade contact (has symptoms) 72 (19.3) 58 (17.4) 14 (35.0)
 First grade contact (has no symptoms) 40 (10.7) 27 (8.1) 13 (32.5)
 Indication of viral pneumonia 13 (3.5) 12 (3.6) 1 (2.5)
 Works in medical profession 51 (13.6) 47 (14.1) 4 (10.0)
 Belongs to risk group 60 (16.0) 59 (17.7) 1 (2.5)
 Free capacity/other 134 (35.8) 127 (38.0) 7 (17.5)
 Missing 4 (1.1) 4 (12.0) 0 (0.0)
GP expects positive result, n (%) 0.010
 No 245 (65.5) 227 (68.0) 18 (45.0)
 Yes 119 (31.8) 99 (29.6) 20 (50.0)
 Missing 10 (2.7) 8 (2.4) 2 (5.0)
Number of risk factors, n (%) N/A
 None 187 (50.0) 168 (50.3) 19 (47.5)
 One or two 138 (36.9) 125 (37.4) 13 (32.5)
 More than two 49 (13.1) 41 (12.3) 8 (20.0)

*Mann-Whitney U Test

MV Mean value, SD Standard deviation, Q1 25%-quantile, Q3 75%-quantile