| 组别 | 年龄(岁) | 性别 | 病程(周) | |
| 男 | 女 | |||
| 对照组(n = 80) | 51.02 ± 10.15 | 34 (42.5%) | 46 (57.5%) | 2.33 ± 0.73 |
| 观察组(n = 80) | 50.85 ± 9.63 | 29 (36.3%) | 51 (63.7%) | 2.29 ± 0.92 |
| z/χ2 | −0.034 | 0.655 | −0.776 | |
| P | 0.973 | 0.418 | 0.438 | |