TABLE 1.

Characteristics at Diagnosis in Patients with ¹²³I-MIBG–avid, Stage 4 Disease

Characteristic	n
Total patients	345
Sex
Male	212 (61%)
Female	133 (39%)
Age
Median age	2.9 (range, 0.2%–16.1%)
Age < 18 mo	48 (14%)
Age ≥ 18 mo	297 (86%)
MYCN status
Amplified	122 (35%)
Nonamplified	182 (53%)
Unknown	41 (12%)
ASCT	261 (76%)
Chimeric antibody	23 (7%)

ASCT = autologous stem cell transplantation, which was performed if patient was in CR/PR with ≤ 3 ¹²³I-MIBG–avid sites and > 50% reduction of ¹²³I-MIBG–avid osseous lesions.