Table 1. Clinical features of the 78 patient before treatments in our hospital.

Characteristics	NO. (Ratio) or Mean (Range)
Age	26.5 (16-38)
Gravidity	2.0 (1-6)
Parity time
0	63 (80.8%)
1	12 (15.4%)
2	3 (3.8%)
Pretreatment β-HCG (IU/L)	154873.2 (15.5-3508811)
FIGO score
≤6	43 (55.1%)
≥7	35 (44.9%)
FIGO stage
I	42 (53.9%)
II	1 (1.3%)
III	31 (39.7%)
IV	4 (5.1%)
Metastasis
Lung	34 (43.6%)
Liver	2 (2.6%)
Brain	1 (1.3%)
Vagina	1 (1.3%)
Pelvic wall	1 (1.3%)
Previous GTN history
NO	70 (89.7%)
YES	8 (10.3%)
Resistant to multi-drug chemotherapy
NO	68 (87.2%)
YES	10 (12.8%)