Demographic data and clinical histories of the suspicious cases (n=132)
| Variables | RT-PCR +ve (n=30) | RT-PCR −ve (n=102) | P value |
| Sex; number (%) | |||
| Male | 24 (80%) | 78 (76.5%) | – |
| Female | 6 (20%) | 24 (23.5%) | – |
| M/F | 4 | 3.25 | 0.68 |
| Nationality; number (%) | |||
| Iranian | 27 (90%) | 92 (90.2%) | 0.97 |
| Non-Iranian | 3 (10%) | 10 (9.8%) | |
| COVID-19 related history; number (%) | |||
| Close contact | 7 (23.3%) | 5 (4.9%) | 0.002 |
| Fever | 10 (33.3%) | 32 (31.4%) | 0.83 |
| Cough | 6 (20%) | 11 (10.8%) | 0.18 |
| Respiratory distress | 16 (53.3%) | 13 (12.7%) | <0.001 |
| Neurological symptoms* | 5 (16.7%) | 6 (5.9%) | 0.06 |
| Abdominal pain | 3 (10%) | 0 | 0.01 |
| Anorexia | 1 (3.3%) | 10 (9.8%) | 0.22 |
| Past medical history; number (%) | |||
| Cancer | 2 (6.7%) | 0 | 0.05 |
| DM | 3 (10%) | 6 (5.9%) | 0.43 |
| Chronic anemia | 1 (3.3%) | 0 | 0.22 |
| Cardiac disease | 3 (10%) | 7 (6.9%) | 0.56 |
| CKD | 0 | 1 (1%) | 1.0 |
| Asthma | 0 | 2 (2%) | 1.0 |
| COPD | 2 (6.7%) | 0 | 0.05 |
| HTN | 4 (13.3%) | 8 (7.8%) | 0.35 |
| Hospital course; number (%) | |||
| Intubation | 11 (36.7%) | 38 (37.3%) | 0.95 |
| Mortality | 5 (16.7%) | 11 (10.8%) | 0.38 |
| ALOS (days); mean (SD) | 8.1 (5.6) | 10.66 (13.66) | 0.63 |
*Defined as the presence of any of the followings: anosmia, dysgeusia, ageusia.
ALOS, average length of hospital stay; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; DM, diabetes mellitus; HTN, hypertension; M/F, male to female ratio; RT-PCR, reverse transcription-polymerase chain reaction; −ve, negative; +ve, positive.