PFS and OS in patients with typical/variant NLPHL and patients allocated to 3 different risk groups, based on a newly developed prognostic score. (A) Kaplan-Meier curve for relative PFS in typical NLPHL (A/B, n = 308) and NLPHL variant (non-A/B, n = 105) (P = .0158). (B) Kaplan-Meier curve for the relative PFS of the 3 prognostic risk groups in NLPHL patients (P < .0001). (C) Kaplan-Meier curve for the relative OS of the 3 prognostic risk groups in NLPHL patients (P = .0173).