Clinico-epidemiology of XXXX in north east Egypt: A 5-year multicenter study.

@entity5 @entity1 @entity521
UNASSIGNED: @entity521 , an @entity5 of the sympathetic nervous system, is the most frequent extracranial @entity5 The clinico-epidemiological features of @entity521 in @entity1 and @entity1 were investigated between January 2005 and January 2010 at the Pediatric Oncology units of Mansoura, Zagazig, and Tanta University @entity1 's Hospitals (Egypt). Of 142 cases of @entity521 , 10 were omitted from the study due to defective data. The median age of the @entity1 was 30 months, with 75.8% aged >= 1 year and 24.2% aged <1 year at time of diagnosis. The male-to-female ratio was 1.06. Suprarenal glands were the most common primary @entity5 site (72.7%). The majority of the @entity1 (76.7%) had stage IV disease. Favorable pathology was observed in 43.8% of @entity1 , while 56.2% exhibited unfavorable pathology. The estimated survival rate of @entity1 was 30.7  10.0%, and mean survival time was 24.2  5.2 months. The rate of mortality was 28.6% for @entity1 aged <1 year, and 81.8% for those aged >= 1 year (P=0.005). For @entity1 with favorable pathology, the rate of mortality was significantly lower (28.6%) compared with that of @entity1 with unfavorable pathology (77.8%; P=0.049). Although the association between outcome and each of the primary @entity5 sites, @entity1 's oncology group risk and gender was statistically insignificant, a large effect size was identified between outcome and primary @entity5 site, as well as @entity1 's oncology group risk and a medium effect size was identified between outcome and gender. Additionally, an age of >= 1 year was associated with unfavorable pathology (P=0.024), stage IV disease (P=0.026) and a suprarenal primary @entity5 site (P=0.001).
