Score

Prognostic factors

0

1

2

4

Age

≤ 39

>39

Past pregnancy

Mole

Abortion

Term

Months from last pregnancy

4

4 to 6

7 to 12

12

hCG (IU/L)

10³

10³-10⁴

10⁴-10⁵

10⁵

ABO (female x male)

O x A

A x O

B

AB

Largest tumor (cm)

3 to 5

5

Site metastases

Spleen Kidney

GILiver

Brain

Number of metastases

1 to 4

4 to 8

8

Prior chemotherapy

Single drug

2 or more drugs