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Table 2 Results of the sensitivity, specificity, accuracy, positive predictive value, and negative predicted value of the POC test from urine samples of patients treated with dabigatran or rivaroxaban

From: Concept of a point of care test to detect new oral anticoagulants in urine samples

 

Dabigatran N=484

Rivaroxaban N=457

 

Mean

95% CI

Mean

95% CI

Sensitivity

100

99–100

96

94–98

Specificity

99

98–100

98

96–99

Accuracy

99

99–100

97

96–98

PPI

99

98–100

98

97–99

NPI

100

99–100

96

94–98

  1. PPI positive predictive index, NPI negative predictive index. Results of patients not on treatment with anticoagulants served as control (adapted from 19).