Table 2.

High-risk neuroblastoma patient demographics and clinical characteristics. Numbers are represented as number (%) or median [interquartile range].

	Total N = 83
Age (years) [IQR]	3.0 [2.5]
Biological Sex
Female	45 (54.2)
Male	38 (45.8)
Race
White	57 (68.6)
Black	23 (26.4)
Other	3 (3.6)
Disease Stage (INSS)
II	1 (1.2)
III	10 (12.0)
IV	72 (86.8)
Disease Stage (INRG)
L1	1 (1.2)
L2	9 (10.8)
M	72 (86.8)
NMYC amplification	25 (30.1)
Adjuvant Chemotherapy Protocol
NB91	12 (14.4)
NB2008	1 (1.2)
NB2012	45 (54.2)
Other	25 (30.2)
30-day postoperative complications
Chylous ascites	4 (4.8)
Pleural effusion	2 (2.4)
Wound dehiscence or infection	6 (7.2)
Other	2 (2.4)
Adjuvant Chemotherapy Initiation
Time to Initiation (days) [IQR]	11.0 [9, 14]
≤7 days	16 (19.3)
8-14 days	54 (65.1)
≥15 davs	13 (15.6)