Table 2. Criteria Used for the Classification of Risk Groups in Childhood Hodgkin Lymphoma Clinical Trialsa
| Trial | Low Risk | Intermediate Risk | High Risk |
| Children's Oncology Group | |||
| AHOD0031 [17] | IA bulk or E; IB; IIA bulk or E; IIB; IIIA, IVA | ||
| AHOD0431 [18] | IA, IIA with no bulk | ||
| AHOD0831 | IIIB, IVB | ||
| C5942 [19] | IA, IB, IIA with no bulk, no hilar nodes and <4 sites | IA, IB, IIA with bulk, hilar nodes or ≥4 sites; III | IV |
| C59704 [20] | IIB/IIIB with bulk, IV | ||
| P9425/P9426 [21] | IA, IIA with no bulk | IB, IIA, IIIA1 with bulk; IIIA2 | IIB, IIIB, IV |
| German Multicenter/Euronet | |||
| GPOH-HD 95; GPOH-HD 2002; PHL-C1 [3,22,23] | 1A/B, IIA | IEA/B;IIEA; IIB; IIIA | IIEB; IIIEA/B; IIIB; IV |
| Stanford/St. Jude/Dana-Farber Cancer Institute Consortium | |||
| HOD05 | IB, IIIA, IA/IIA with E, ≥3 sites or bulk | ||
| HOD08 | IA, IIA with no bulk, E and <3 sites | ||
| HOD99 | IIB, IIIB, IV | ||
| E = extralymphatic. | |||
| aAdapted from Kelly.[16] |
References
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