Table 1 The baseline characteristics of the study population.

Retrospective cohort

HC (n = 30)

32.83 ± 4.39

23.84 ± 3.17

28.73 ± 4.47

PE (n = 30)

33.33 ± 4.86

25.35 ± 4.02

29.23 ± 3.79

35.90 ± 2.95

p^a value

0.677

0.112

0.642

Discovery cohort

Suspected-PE⁻(n = 215)

32.75 ± 4.63

24.18 ± 4.29

30.45 ± 4.19

Suspected-PE⁺ (n = 47)

33.91 ± 4.47

25.11 ± 4.77

28.93 ± 5.27

36.17 ± 2.91

p^a value

0.117

0.095

0.067

Validation cohort

Suspected-PE⁻(n = 56)

34.00 ± 4.88

23.92 ± 3.81

28.41 ± 4. 52

suspected-PE⁺ (n = 10)

31.90 ± 4.04

24.43 ± 4.81

31.40 ± 3.53

35.40 ± 5.19

p^a value

0.204

0.705

0.052

p^b value

0.413

0.307

0.193

0.779