6.
两组不良反应比较 [例（%）]
| 组别 | n | 血压下降 | 嗜睡 | 多汗 | 发生率 |
| 常规组 | 50 | 4(8) | 2(4) | 2(4) | 8(16) |
| 多巴胺组 | 50 | 5(10) | 3(6) | 2(4) | 10(20) |
| χ2/χc2值 | 0.122 | 0.211 | - | 0.271 | |
| P值 | 1.000 | 1.000 | - | 0.603 |
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