Table 1.
Descriptive Characteristics of the Participants
| Variables | n (%) or Mean ± SD |
|---|---|
| Age | 15.26 ± 0.46 |
| Gender | |
| Male | 556 (57.6) |
| Female | 409 (42.4) |
| Left-behind status | |
| Left-behind | 305 (31.6) |
| Non-left-behind | 660 (68.4) |
| Household monthly income per person (yuan) | |
| <2000 | 334 (34.6) |
| 2000–3999 | 416 (43.1) |
| ≥4000 | 215 (22.3) |
| COVID-19-related fear | 17.41 ± 7.29 |
| Physical activity time (PAT) (h/d) | |
| <1.5h/d (low PAT) | 482 (49.9) |
| ≥1.5h/d (high PAT) | 483 (50.1) |
| Sitting time (ST) (h/d) | |
| <4h/d (low ST) | 444 (46.0) |
| ≥4h/d (high ST) | 521 (54.0) |
| Insomnia symptoms | |
| With insomnia symptoms | 337 (34.9) |
| Without insomnia symptoms | 628 (65.1) |
| Depression symptoms | |
| With depressive symptoms | 441 (45.7) |
| Without depressive symptoms | 524 (54.3) |
| Anxiety symptoms | |
| With anxiety symptoms | 332 (34.4) |
| Without anxiety symptoms | 633 (65.6) |