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Baseline demographic characteristics.
| Index | Observation group | Control group | P-value |
|---|---|---|---|
| Age (years) | 55.43 ± 5.53 | 48.26 ± 6.75 | 0.015∗ |
| Drinking (n) | 21 (26.25) | 7 (10.00) | 0.012∗ |
| Smoking (n) | 17 (21.25) | 15 (20.14) | 0.925 |
| Course of disease (months) | 4.33 ± 1.30 | 4.39 ± 0.97 | 0.202 |
| Years of education (years) | 9.20 ± 4.31 | 14.29 ± 4.24 | 0.015∗ |
| Body mass index (BMI, kg/m2) | 21.76 ± 4.11 | 21.76 ± 4.18 | 0.313 |
| Hospitalization time (days) | 14.44 ± 0.67 | 14.40 ± 0.66 | 0.472 |
