Table 2.
Description of numerical variables
| Continuous variable | Mean | Median | ±Standard deviation | Minimum–maximum |
|---|---|---|---|---|
| PSQI score | 5.6 | 5.0 | 2.9 | 0–16 |
| Age (in years) | 37.5 | 35.0 | 12.6 | 18–64 |
| Number of people supporting at home | 1.7 | 2.0 | 1.8 | 0–9 |
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