Table 3: Patients’ characteristics of those presented in first year of life versus those with older age at presentation.

Infants (younger than or equal to 1-year old)Older patients (older than 1-year old) value

Number of cases18108
Gender (M/F)10/872/36
Age range (median)0.66 4.8
Histology (%)0.45
 Embryonal88.975.9
 Alveolar11.124.1
Site of origin (%)0.28
 Head and neck (%)
  Parameningeal11.130.6
  Orbit11.17.4
  Head and neck (nonpara nonorbit)5.613
GU
 Bladder/prostate11.112
 Nonbladder/nonprostate11.17.4
 Extremities11.111.1
 Others38.918.5
TNM stage (%)
 N15.638.9
 M111.119.4
Size (%)0.928
 >555.657.4
 ≤538.933.3
 Unknown5.59.3
IRS stage (%)0.34
 I27.824.6
 II27.815.1
 III33.342.1
 IV11.118.3
Clinical group (%)0.74
 I119
 II64
 III7268
 IV1119
Risk (%)0.64
 Low22.215.7
 Intermediate66.765.7
 High11.118.6