Table 4.

Selectivity and specificity of ABI < 0.9 and the best ABI cut-off value by baPWV quartile

Quartile (Best Cut-Off)<0.9<Best ABI Cut-Off
SensitivitySpecificitySensitivitySpecificity
Quartile 1 (1.00)76.9 (46.2 to 95.0)95.1 (88.1 to 99.6)84.6 (54.6 to 98.1)91.4 (81.0 to 97.1)
Quartile 2 (1.05)40.0 (12.2 to 73.8)89.7 (94.1 to 100.0)70.0 (34.8 to 9.30.3)96.7 (88.7 to 99.6)
Quartile 3 (1.10)31.3 (11.0 to 58.7)90.9 (84.9 to 98.9)68.8 (41.3 to 89.0)81.8 (69.1 to 90.9)
Quartile 4 (1.05)54.6 (36.4 to 69.2)96.2 (90.8 to 100.0)84.9 (68.1 to 93.0)89.5 (75.2 to 93.5)