Statistical Analysis:
Clinical and demographic profiles were analyzed using descriptive
statistics. A comparison of proportions was done with
chi2 or Fisher’s exact tests. Event free survival
(EFS) was calculated from date of diagnosis to the occurrence of any
event (relapse, progression, death, second malignancy) or till last
follow-up date. Overall survival was calculated from the date of
diagnosis to date of death due to any cause or till last follow-up date.
Kaplan-Meier’s method was used to calculate the survival estimates. Cox
regression model was used to compare the survival curves. All
statistical tests were two-sided and a p-value of less than 0.05 was
considered significant. Statistical analysis was performed using SPSS
Statistics for Windows, version 24 (SPSS IncVR,Chicago, IL).