Table 3 Diagnostic ability of ABI, %MAP, UT and the combination of ABI, %MAP and UT

From: Combination of pulse volume recording (PVR) parameters and ankle–brachial index (ABI) improves diagnostic accuracy for peripheral arterial disease compared with ABI alone

 

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

Accuracy (%)

ABI alone

142/158 (89.9%)

38/45 (84.4%)

142/149 (95.3%)

38/54 (70.4%)

180/203 (88.7%)

%MAP alone

129/158 (81.6%)

40/45 (88.9%)

129/134 (96.3%)

40/69 (58.0%)

169/203 (83.3%)

UT alone

114/158 (72.2%)

33/45 (73.3%)

114/126 (90.5%)

33/77 (42.9%)

147/203 (72.4%)

Combination of %MAP and UT

146/158 (92.4%)

31/45 (68.9%)

146/160 (91.3%)

31/43 (72.1%)

177/203 (87.2%)

Combination of ABI, %MAP and UT

155/158 (98.1%)

27/45 (60.0%)

155/173 (89.6%)

27/30 (90.0%)

182/203 (89.7%)

  1. Abbreviations: %MAP, percent mean arterial pressure; ABI, ankle–brachial index; NPV, negative predictive value; PPV, positive predictive value; UT, upstroke time.
  2. Bold numbers represent the highest values in each statistical measure.
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