Conclusion:
We conclude that simple prognostic models predict the prognosis in
individual homogenous cohorts of adolescent and young adult patients
with non-metastatic and metastatic osteosarcoma and Ewing’s sarcomas. In
addition to conventional prognosticators, failure to complete the
treatment protocol (all cohorts) and the disease not being amenable to
curative treatment (metastatic cohort) were associated with inferior
outcomes. These simple prognostic models are effective and with wide
applicability including in LMIC and merit appropriate recognition.