Table 1 TPMT and ITPA genotype frequencies in 103 Chilean children with ALL

TPMT

TPMT*1/ TPMT*1

95

92

TPMT*2/ TPMT*1

0

0

TPMT*3A/ TPMT*1

7

7

TPMT*3B/ TPMT*1

0

0

TPMT*3C/ TPMT*1

1

1

ITPA

ITPA 94 C/C

100

97

ITPA 94 C/A

3

3