Table 1.
Basic characteristics of the participants (n 2272)
| Variable | n | Proportion (%) |
|---|---|---|
| Age distribution | ||
| 18– | 2184 | 78·8 |
| 25– | 518 | 18·7 |
| 50– | 70 | 2·5 |
| Gender | ||
| Male | 507 | 18·3 |
| Female | 2265 | 81·7 |
| Education background | ||
| Elementary, middle, and high school | 165 | 6·0 |
| Associate degree | 975 | 34·5 |
| Bachelor degree | 1416 | 51·1 |
| Master degree and above | 234 | 8·4 |
| With medical background or not | ||
| Yes | 2313 | 83·4 |
| No | 459 | 16·6 |
| Disease history | ||
| Yes | 193 | 7·0 |
| No | 2579 | 93·0 |
| Attention to COVID-19 | ||
| Basically not involved | 70 | 2·5 |
| 3–5 times a week, within 20 min each time | 893 | 32·2 |
| <20 min/d | 795 | 28·7 |
| 20–40 min/d | 478 | 17·2 |
| 40–60 min/d | 171 | 6·2 |
| 1–2 h/d | 199 | 7·2 |
| More than 2 h/d | 166 | 6·0 |
| Attention to nutrition and immunity knowledge | ||
| No attention | 736 | 26·6 |
| Passive attention | 1656 | 59·7 |
| Active attention | 380 | 13·7 |
| Place of residence during COVID-19 outbreak | ||
| First-tier cities | 1171 | 53·7 |
| Other cities | 1071 | 46·3 |