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Prognostic Factors Based on the WHO Scoring System
Prognostic Factor
|
Score
|
Age
|
<39 |
0 |
>39 |
1 |
Antecedent pregnancy
|
hydatidiform mole |
0 |
abortion |
1 |
term |
2 |
Interval between end of antecedent pregnancy and start of chemotherapy
|
<4 mo |
0 |
4–6 mo |
1 |
7–12 mo |
2 |
>12 mo |
4 |
hCG (IU/mL)
|
<1000 |
0 |
1,000–10,000 |
1 |
10,000–100,000 |
2 |
>100,000 |
4 |
ABO groups (female × male)
|
O × A or A × O |
1 |
B or AB |
2 |
Largest tumor, including uterine
|
3–5 cm |
1 |
>5 cm |
2 |
Site of metastases
|
spleen, kidney |
1 |
gastrointestinal tract or liver |
2 |
brain |
4 |
Number of metastases identified
|
1–4 |
1 |
4–8 |
2 |
>8 |
4 |
Prior chemotherapy
|
single drug |
2 |
2 or more drugs |
4 |
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