Skip to main content

Table 3 Comparison of SN incidence in the two risk groups, identified using the classification tree from Figure 1, with the incidence of SN in the whole observed population

From: Classification tree analysis of second neoplasms in survivors of childhood cancer

First identified risk group (girls with Hodgkin's lymphoma): ChiSquared p-value is much smaller than 0.01 (in a range of 10-11)

Group of patients

SN

Non-SN

Total

Identified risk group

5

6

11

Others

29

809

838

All included in the study

34

815

849

Second identified risk group (boys with acute lymphoblastic leukemia): ChiSquared p-value is much smaller than 0.01 (in a range of 10 -9 )

Group of patients

SN

Non-SN

Total

Identified risk group

4

6

10

Others

30

809

838

All included in the study

34

815

849

  1. ChiSquared test show significant difference in both cases.