Abbreviation Key
WT Wilms Tumor
NWTSG National Wilms Tumor Study Group
COG Children’s Oncology Group
SIOP International Society of Paediatric Oncology
HIC high income countries
LMIC Low and middle income countries
ASIR Age standardised incidence rate
IRB Institutional review board
Gy Gray
OS Overall survival
EFS Event free survival
SMN second malignant neoplasms
SPSS Statistical package for social sciences