From: Predictive accuracy of years score in diagnosis of pulmonary embolism
CTPA +VE
CTPA −VE
P value
0 years
D-dimer < 1000
(total count 8)
2 (18.2%)
10 (62.5%
0.009
D-dimer ≥ 1000
(total count 15)
9 (81.8%)
6 (37.5%)