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Survival dimensionality reduction (SDR) model for the rheumatoid arthritis dataset. a. Multidimensional matrix for the single nucleotide polymorphisms (SNPs) interaction; GM, geometric mean of the differences; n, number of cases; e, percentage of events. b. Kaplan-Meier estimated survival patterns associated with "high-" and "low-risk" assignments. P values are those associated with a chi-square distribution with 1 degree of freedom.
