Table 1.
Demographics characteristics of all samples involved in this survey (n = 4086).
| Demographics | N (%) or Mean (SD) | |
|---|---|---|
| Biological sex | ||
| Male | 2236 (54.7%) | |
| Female | 1850 (45.3%) | |
| Age | 34.23 (10.48) | |
| Education | ||
| Junior high school or below | 655 (16.0%) | |
| High school degree | 952 (23.3%) | |
| Bachelor’s degree | 2243 (54.9%) | |
| Master’s degree or above | 236 (5.8%) | |
| Family monthly per capita income | ||
| RMB <5000 | 1616 (39.5%) | |
| RMB 5000–10,000 | 1491 (36.5%) | |
| RMB 10,001–15,000 | 507 (12.4%) | |
| RMB >15,000 | 472 (11.6%) | |
| Health condition | ||
| Very good | 2588 (63.3%) | |
| Good | 1295 (31.7%) | |
| Average | 203 (5.0%) | |
| Influenza vaccination status (nearly 3 years) | ||
| No vaccination | 3853 (94.3%) | |
| Vaccination, discontinuous | 194 (4.7%) | |
| Vaccination, continuous | 39 (1.0%) | |
| Domestic business trip frequency | ||
| At least twice a month | 120 (2.9%) | |
| About once a month | 187 (4.6%) | |
| About once every 3 months | 295 (7.2%) | |
| About once every 6 months | 526 (12.9%) | |
| Barely | 2958 (72.4%) | |
| Foreign business trip frequency | ||
| At least once every 3 months | 7 (0.2%) | |
| About once every 6 months | 15 (0.4%) | |
| About once a year | 27 (0.7%) | |
| Barely | 4037 (98.8%) | |