Table 2: Risk of lymph node involvement and 5-year progression free survival based on depth of invasion and grade.

Depth of invasionGradeRisk of LN involvement5-year PFS

Superficial (IA)1 or 2<3%>95%
Superficial (IA)3 ~10% ~80%
Less than 50% (IB)1 or 2
Greater than 50% (1C)1 or 2
Greater than 50% (1C)3 ~30% ~50%
Cervical involvement (II) any grade