Nomogram Prediction for Lower Extremity Deep Vein Thrombosis in Acute Ischemic Stroke Patients Receiving Thrombolytic Therapy

Figures

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  Figure 1.. Nomogram for the possibility of early LDVT in AIS patients receiving thrombolytic therapy. In sex, 1 represents man, and 0 represents woman. In the history of HBP and AF, 1 represents yes, and 0 represents no. The corresponding score for each indicator is vertically down, and the sum can be obtained on the total points scale for each patient. Finally, the possibility of LDVT is the risk of “LDVT” vertically corresponding to “Total Points.” AF, atrial fibrillation; AIS, acute ischemic stroke; IB, indirect bilirubin; HBP, hypertension; HCY, homocysteine; LDVT, lower extremity deep vein thrombosis.

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  Figure 2.. The ROC curves of the nomogram for estimation of lower extremity deep vein thrombosis (LDVT) among the training cohort (A) and validation cohort (B). (A) The AUC value is 0.833 (CI: 0.774-0.892). (B) The AUC value is 0.907 (CI: 0.801-1.000). AUC, area under the curve; CI, confidence interval; ROC, receiver operating characteristics curves.

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  Figure 3.. The calibration plots for training cohort (A) and validation cohort (B). (A) Mean absolute error = 0.021 (training cohort); (B) Mean absolute error = 0.020 (validation cohort), indicating that in an individual, the agreement between the predicted outcome and the true probability is not bad.