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Estimated single-index function with 95% confidence intervals when g(t) = exp(t). All biomarkers were log-transformed and standardized. (A) Estimated single-index function; (B) Procalcitonin with other biomarkers fixed at median values; (C) Troponin with other biomarkers fixed at median values; (D) D-dimer with other biomarkers fixed at median values; (E) Ferritin with other biomarkers fixed at median values; (F) CRP with other biomarkers fixed at median values.
