| 组别 | 心律失常 | 心力衰竭 | 心绞痛 | 发生率(%) |
| 对照组(n = 48) | 4 (8.33) | 2 (4.17) | 4 (8.33) | 10 (20.83) |
| 观察组(n = 48) | 1 (2.08) | 0 (0.00) | 1 (2.08) | 2 (4.17) |
| x² |
|
|
| 6.095 |
| P |
|
|
| <0.05 |