Table 1.
Sample characteristics among participants (n = 1061).
| Variables | Mean (SD) or n (%) |
|---|---|
| Age (years), mean (SD) | 23.2 (3.3) |
| Education, n (%) | |
| Under high school | 109 (10.3) |
| High school | 842 (79.4) |
| Above high school | 110 (10.4) |
| Ethnicity, n (%) | |
| Kinh (majority) | 735 (69.3) |
| Other | 326 (30.7) |
| Residence, n (%) | |
| Rent cluster | 936 (88.1) |
| Dormitory | 125 (11.8) |
| Years working in IZ, n (%) | |
| ≤1 year | 483 (51.7) |
| 2–5 years | 429 (31.4) |
| >5 years | 149 (17.2) |
| Working hours per day, n (%) | 810 (76.3) |
| 8 h | 251 (23.7) |
| >8 h | |
| Monthly income (USD), mean (SD) | 291.9 (56.5) |
Note: Continuous variables are presented as mean (SD); categorical variables are presented as proportions, n (%).