Figure 1
Figure 1. Nomogram of logistic regression model for predicting HIT. Anti-heparin/PF4 OD and confirmatory assay (Neg indicates negative; and Pos, positive) values are displayed on the outer scales. Connecting a pair of PF4 OD and confirmatory assay results using a straight edge allows one to estimate the probability of HIT from the center scale.

Nomogram of logistic regression model for predicting HIT. Anti-heparin/PF4 OD and confirmatory assay (Neg indicates negative; and Pos, positive) values are displayed on the outer scales. Connecting a pair of PF4 OD and confirmatory assay results using a straight edge allows one to estimate the probability of HIT from the center scale.

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