2.
标志物下降程度与最好疗效、分期及复发类型的关系（Md/Q）
Correlation between decrease of tumor markers (%) and the best efficacy and stageand three types of relapse (Md/Q)
| Item | Decreaseof NSE (%) | Z/χ2 | P | Decrease of ProGRP (%) | Z/χ2 | P | Decrease of LDH (%) | Z/χ2 | P |
| CR: complete response; PR: partial response; SD: stable disease; PD: progressive disease. | |||||||||
| The best efficacy | 8.386 | 0.015 | 12.906 | 0.002 | 0.837 | 0.658 | |||
| CR+PR | 68.00 (34.90) | 77.10 (38.33) | 14.11 (25.68) | ||||||
| SD | 53.05 (33.87) | 23.51 (80.31) | 9.68 (22.96) | ||||||
| PD | 44.45 (110.38) | 6.53 (54.22) | 16.97 (43.97) | ||||||
| Stage | -3.569 | < 0.001 | -0.348 | 0.728 | -3.430 | 0.001 | |||
| LD | 57.28 (36.83) | 74.67 (35.84) | 10.57 (24.65) | ||||||
| ED | 75.09 (30.26) | 70.75 (73.56) | 21.19 (34.89) | ||||||
| Types of relapse | 1.524 | 0.467 | 4.821 | 0.090 | 3.469 | 0.177 | |||
| Sensitive relapse | 68.55 (38.85) | 81.77 (31.66) | 9.68 (22.34) | ||||||
| Drug resistance relapse | 65.87 (32.87) | 72.48 (62.14) | 18.42 (15.09) | ||||||
| Refractory relapse | 74.10 (31.49) | 58.31 (63.88) | 19.92 (26.34) | ||||||