Table 1 Socio-demographic and disease-related variables for different results of SARS-CoV-2 PCR test
Variables | PCR-test negative cases n = 14,356 (81.2%) | PCR-test positive cases n = 805 (4.5%) | PCR-test unknown cases n = 2530 (14.3%) | p-value |
|---|---|---|---|---|
Age, Mean (± SD) | 42.8 (± 18.8) | 45.1 (± 17.6) | 44.3 (±17.8) | < 0.0011 |
Age, N (%) |  |  |  | < 0.0012 |
  < 20 | 1426 (87.6) | 50 (3.1) | 151 (9.3) |  |
 20–29 | 2215 (80.4) | 121 (4.4) | 418 (15.2) |  |
 30–39 | 2607 (80.8) | 144 (4.5) | 475 (14.7) |  |
 40–49 | 2438 (80.7) | 118 (3.9) | 464 (15.4) |  |
 50–59 | 2720 (80.5) | 190 (5.6) | 469 (13.9) |  |
 60–69 | 1934 (80.0) | 122 (5.0) | 363 (15.0) |  |
  > 69 | 1016 (80.2) | 60 (4.7) | 190 (15.0) |  |
Sex, N (%) | Â | Â | Â | 0.0022 |
 Female | 7082 (82.2) | 379 (4.4) | 1156 (13.4) |  |
 Male | 7274 (80.2) | 426 (4.7) | 1374 (15.1) |  |
Residency, N (%) |  |  |  | < 0.0012 |
 Rural | 7978 (82.6) | 429 (4.4) | 1252 (13.0) |  |
 City | 6378 (79.4) | 376 (4.7) | 1278 (15.9) |  |
Month of admission, N (%) |  |  |  | < 0.0012 |
 March | 210 (79.5) | 6 (2.3) | 48 (18.2) |  |
 April | 2140 (75.9) | 109 (3.9) | 571 (20.3) |  |
 May | 3271 (89.8) | 123 (3.4) | 250 (6.8) |  |
 June | 4672 (81.1) | 344 (6.0) | 741 (12.9) |  |
 July | 4063 (78.0) | 223 (4.3) | 920 (17.7) |  |
Number of days in hospital, median (IQR) | 3 (2–6) | 13 (4–16) | 3 (2–6) | < 0.0011 |
Final diagnoses, N (%) |  |  |  | < 0.0012 |
 J00-J06: Acute upper respiratory infections | 1028 (95.6) | 2 (0.2) | 45 (4.2) |  |
 J09-J18: Influenza and pneumonia | 5930 (84.8) | 61 (0.9) | 1002 (14.3) |  |
 J20-J22: Other acute lower respiratory infections | 70 (85.4) | 0 (0.0) | 12 (14.6) |  |
 J40-J47: Chronic lower respiratory diseases | 12 (100.0) | 0 (0.0) | 0 (0.0) |  |
 J96-J99: Other diseases of the respiratory system | 91 (68.9) | 4 (3.0) | 37 (28.0) |  |
 B34: Viral infection of unspecified site | 282 (26.2) | 586 (54.5) | 208 (19.3) |  |
 Z20: Contact with and (suspected) exposure to communicable diseases | 5517 (86.7) | 7 (0.1) | 842 (13.2) |  |
 U07.1: COVID-19 (virus specified) | 0 (0.0) | 145 (100.0) | 0 (0.0) |  |
 U07.2: COVID-19 (virus unspecified) | 1425 (78.8) | 0 (0.0) | 384 (21.2) |  |
Clinical outcome at discharge |  |  |  | < 0.0012 |
 Without change | 1092 (68.6) | 121 (7.6) | 379 (23.8) |  |
 Recovery | 3646 (76.1) | 427 (8.9) | 717 (15.0) |  |
 In-hospital death | 139 (61.5) | 32 (14.2) | 55 (24.3) |  |
 Improvement | 9436 (85.6) | 216 (2.0) | 1376 (12.5) |  |
 Deterioration | 43 (78.2) | 9 (16.4) | 3 (5.4) |  |
Post-hospital mortality | 245 (1.7) | 9 (1.1) | 40 (1.6) | 0.42 |
Type of Hospital |  |  |  | < 0.0012 |
 Quarantine | 5490 (86.7) | 13 (0.2) | 828 (13.1) |  |
 Provisional | 8584 (83.7) | 172 (1.7) | 1501 (14.6) |  |
 Infectious diseases | 282 (25.6) | 620 (56.2) | 201 (18.2) |  |
Type of Healthcare organization |  |  |  | < 0.0012 |
 City hospitals | 1296 (69.6) | 262 (14.1) | 303 (16.3) |  |
 Oblast hospitals | 226 (81.6) | 3 (1.1) | 48 (17.3) |  |
 Rayon hospitals | 7262 (88.7) | 491 (6.0) | 436 (5.3) |  |
 Other med organizations | 918 (40.0) | 44 (1.9) | 1332 (58.1) |  |
 Non-medical organizations (temporary) | 4654 (91.8) | 5 (0.1) | 411 (8.1) |  |
Number of PCR-tests |  |  |  | < 0.0012 |
 0 (not in hospital) | 47 (1.7) | 102 (3.8) | 2530 (94.4) |  |
 1 | 13,134 (98.1) | 259 (1.9) | 0 (0) |  |
 2 | 1002 (79.0) | 266 (21.0) | 0 (0) |  |
 3 | 157 (55.5) | 126 (44.5) | 0 (0) |  |
  > 4 | 16 (23.5) | 52 (76.5) | 0 (0) |  |