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Table 2 Sensitivity, specificity, predictive values, and likelihood ratios for ARAT-2 at the different assessments

From: A cohort study investigating a simple, early assessment to predict upper extremity function after stroke - a part of the SALGOT study

  Day 3-10 days (CI) Day 3-1 Month (CI) Day 3-12 Months (CI) 1-12 Months (CI)
Sensitivity 0.98 (0.91-1.0) 1.00 (0.92-1.0) 1.00 (0.85-1.0) 1.00 (0.85-1.0)
Specificity 0.94 (0.84-0.99) 0.78 (0.64-0.87) 0.73 (0.58-0.84) 0.88 (0.76-0.96)
PPV 0.95 (0.86-0.99) 0.77 (0.65-0.88) 0.61 (0.44-0.77) 0.79 (0.59-0.92)
NPV 0.98 (0.90-1.0) 1.00 (0.92-1.0) 1.00 (0.91-1.0) 1.00 (0.92-1.0)
LR+ 17.36 (6.40-50.60) 4.54 (2.93-7.49) 3.64 (2.44-5.84) 8.33 (4.20-17.80)
LR 0.02 (0.00-0.096) 0.00 (0.00-0.10) 0.00 (0.00-0.21) 0.00 (0.00-0.17)
  1. Abbreviations: CI, 95 % exact confidence interval; LR+, the positive likelihood ratio; LR, the negative likelihood ratio; NPP, negative predictive value; PPV, positive predictive value