TABLE 1

Characteristics of the study population (n=205)

VariableSubjectsDiagnosisp-value#
PE (n=68)No PE (n=137)
Female108 (52.7)35 (51.5)73 (53.3)0.65
Age years65.1±16.866.4±16.564.4±16.90.42
Height cm169±9170±10168±80.21
Weight kg75.4±16.876.0±14.475.2±17.90.76
Active smoker45 (22.0)11 (16.2)34 (24.8)0.13
COPD24 (11.7)5 (7.4)19 (13.9)0.17
Previous PE38 (18.5)18 (26.5)20 (14.6)0.04
Heart failure17 (8.3)4 (5.9)13 (9.5)0.41
Cancer16 (7.8)5 (7.4)11 (8.0)0.87
Heart rate beats·min−189±2194±2286±210.01
Pulse oximetry %95 (92–97)94 (90–96)96 (93–98)0.003
Thoracic pain124 (60.5)39 (57.4)85 (62.0)0.48
Dyspnoea154 (75.1)56 (82.4)98 (71.5)0.11
Signs of DVT24 (11.7)10 (14.7)14 (10.2)0.36
D-dimer level µg·L−11412 (921–2926)3070 (1600–5117)1080 (764–1929)<0.001
Time in the ED h5.0 (3.0–11.0)5.5 (3.3–14.0)5.0 (2.0–8.0)0.03
Symptoms h72 (24–168)72 (24–168)72 (24–180)0.91
Revised Geneva score5 (3–7)6 (5–8)4 (3–6)<0.001

Data are presented as n (%), mean±sd or median (interquartile range), unless otherwise stated. PE: pulmonary embolism; COPD: chronic obstructive pulmonary disease; DVT: deep vein thrombosis; ED: emergency department. #: p-values are for differences between subjects with and without PE. Values in bold are considered statistically significant (p<0.05).