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Demographical characteristics of patients.
| Demographical features | N = (320) | Percentage (%) |
|---|---|---|
| Age | ||
| Range | 15–35 | |
| Median | 27 | |
|
| ||
| Ethnicity | ||
| Han | 345 | 98.0 |
| Minor | 7 | 2.0 |
|
| ||
| Socioeconomic status | ||
| Middle income | 69 | 19.6 |
| Low income | 283 | 80.4 |
|
| ||
| Marital status | ||
| Married | 125 | 35.5 |
| Unmarried | 227 | 64.5 |
