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Comparison of the baseline data (x̅ ± sd)
| Group | Gender (n) | Average age (year) | Average course (month) | |
|---|---|---|---|---|
|
| ||||
| Male | Female | |||
| Control group (n=60) | 43 | 17 | 43.4±2.7 | 134.3±3.5 |
| Research group(n=60) | 40 | 20 | 42.8±2.4 | 135.1±3.7 |
| χ2/t | 0.352 | 0.858 | 1.217 | |
| P | 0.553 | 0.393 | 0.226 | |
