Table 1 Sociodemographic characteristics of the sample
| Â | T1 | T2 |
|---|---|---|
|  | N = 1955 (%) | N = 342 (%) |
Grade | Â | Â |
 Adolescent | 1015 (51.90) | 84 (24.56) |
 Undergraduate | 940 (48.10) | 258 (75.44) |
Gender | Â | Â |
 Male | 1005 (51.40) | 165 (48.20) |
 Female | 950 (48.60) | 177 (51.80) |
Area | Â | Â |
 High-risk area of COVID-19 | 347 (17.70) | 57 (16.67) |
 Low-risk area of COVID-19 | 1608 (82.30) | 285 (83.33) |
Current state | Â | Â |
 Quarantine in a medical facility | 26 (1.30) | 5 (1.48) |
 Compulsory quarantine at home or in a specific location | 148 (0.72) | 27 (7.89) |
 Learning at home | 1572 (80.40) | 166 (48.54) |
 Resume normal learning | 209 (10.69) | 144 (42.11) |
Only-child family | Â | Â |
 Yes | 1106 (55.90) | 198 (57.89) |
 No | 870 (44) | 144 (42.11) |
Registered residence | Â | Â |
 City | 1164 (59.50) | 187 (54.68) |
 Country | 791 (40.50) | 155 (45.32) |