Table 1.
Characteristics of study population.
| Variables | Covid-19 Positive (n = 56) |
Covid-19 Negative (n = 958) |
|---|---|---|
| Age | 28.9 ± 8.4 | 28.0 ± 8.3 |
| Gender = Female (%) | 36 (64.3%) | 587 (61.3%) |
| BMI | ||
| <18 | 4 (7.1%) | 22 (2.3%) |
| [18–25] | 40 (71.4%) | 741 (77.4%) |
| [25–30] | 6 (10.7%) | 142 (14.8%) |
| >30 | 6 (10.7%) | 53 (5.5%) |
| Work schedules | ||
| Fixed day work | 48 (85.7%) | 664 (69.3%) |
| Fixed night work | 1 (1.8%) | 21 (2.2%) |
| Shifted without consecutive 12 h | 2 (3.6%) | 92 (9.6%) |
| Shifted with consecutive 12 h | 5 (8.9%) | 181 (18.9%) |
| Healthcare workers = Yes (%) | 12 (21.4%) | 282 (29.3%) |
| Students = Yes (%) | 20 (35.7%) | 381 (39.8%) |
| Symptoms | ||
| Cough | 29 (51.2%) | 150 (15.7%) |
| Fatigue | 40 (71.4%) | 251 (26.2%) |
| Fever | 19 (33.9%) | 64 (6.7%) |
| Headache | 34 (60.7%) | 195 (20.3%) |
| Sore throat | 25 (44.6%) | 166 (17.3%) |
| Aches | 23 (41.1%) | 94 (9.8%) |
| Loss of taste and/or smell | 14 (25.0%) | 15 (1.6%) |
| Shortness of breath | 8 (14.3%) | 35 (3.7%) |
| Chest pain | 3 (5.4%) | 18 (1.9%) |
| Medical background | ||
| Any | 6 (10.7%) | 98 (10.2%) |
| Endocrine disease (diabetes, dysthyroid) | 0 | 12 (1.3%) |
| Chronic inflammatory bowel disease | 0 | 8 (0.8%) |
| Mood disorder (depression, bipolarity) | 0 | 7 (0.7%) |
| Sleep apnea | 1 (1.8%) | 5 (0.5%) |
| Chronic obstructive pulmonary disease | 2 (3.6%) | 2 (0.2%) |
| Multiple sclerosis | 0 | 2 (0.2%) |
| Chronic renal failure | 1 (1.8%) | 0 |
| Others | 3 (5.4%) | 54 (5.6%) |
| Mean sleep durationa | 07h47 ± 50′ | 07h49 ± 56′ |
| Social jetlagb (≥2 h) | 18 (33.3%) | 193 (20.6%) |
a
11 missing data (n = 1003).
b
21 missing data (n = 993).