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两组不同观察点的总有效率比较 [例（%）]
| 组别 | 例数 | 3 d | 7 d | 14 d | 1个月 | 2个月 | 3个月 |
| DXM组 | 27 | 11(41) | 12(44) | 8(30) | 18(58) | 15(56) | 14(52) |
| rhTPO联合治疗组 | 31 | 18(58) | 28(90) | 30(97) | 28(90) | 26(84) | 16(52) |
| χ2值 | 1.7324 | 14.1923 | 28.785 | 4.9218 | 5.5842 | 0.0003 | |
| P值 | 0.188 | < 0.001 | < 0.001 | 0.027 | 0.018 | 0.986 |
