| Characteristic | n | % | Notes | |
| Age (y) | Median (IQR): 33.7 (11.9) Range: 20 - 53 | ------- | -------- | Skewed (K-S: Z = 2.1, p = 0.01) |
| Income level (SR) | <10,000 - <20,000 >20,000 - <30,000 ≥30,000 | 352 167 12 | 66.3 16.7 2.3 |
|
| Marital status | Single Married | 81 431 | 15.2 81.1 | Missing 19 |