Table 4.

Net Reclassification Indices of the Modified Objective Prognostic Score-B and Karnofsky Performance Status

	Patients with an event (n)	Patients without an event (n)	Additive NRI	Absolute NRI (%)
Replacement of KPS with mOPS-B for 2-week survival
	Total	168	149	39.47	22.08
	Correct reclassification	114	41
	Incorrect reclassification	15	70
	Net reclassification	99	−29

Additive NRI: (net reclassification/total number of patients with an event) × 100 + (net reclassification/total number of patients without an event) × 100.

Absolute NRI: (net reclassification of patients with an event + net reclassification of patients without an event)/total number of patients × 100.

NRI, net reclassification index.