Table 1 Characteristics of subjects

 Age (years)

58.2 ± 15.0

68.1 ± 12.7**

55.4 ± 18.3

58.1 ± 3.88

 Sex (female %)

66.0

59.5

67.1

50.9

Subgroup diagnoses (n)

N/A

N/A

–

Group 1 PAH

n = 223

PH-Lung

n = 41

 CTEPH

n = 92

 PH-MISC

n = 10

 BSA (m²)

1.81 ± 250

1.89 ± 0.26

1.85 ± 0.25

 Heart Rate (bpm)

72.17 ± 14.4

69.81 ± 3.8

67.9 ± 10.3**

 CMR at incident vs prevalent time (incident %)

N = 165 (45%)

N = 31 (80%)

N = 82 (100%)

 RV insertion T1 (ms)

1065 ± 86

1074 ± 10

1017 ± 69

943 ± 52**

 Septal T1 (ms)

975 ± 67

986 ± 73

976 ± 75

940 ± 56*

 LV free wall T1 (ms)

965 ± 68

982 ± 81

961 ± 66

913 ± 55**

 RVEDV Index (ml/m²)

87.2 ± 34.1

81.9 ± 31.7

68.0 ± 20.4**

 RVESV Index (ml/m²)

51.7 ± 29.0

45.4 ± 23.1

31.1 ± 11.6**

 RVSV Index (%)

35.6 ± 14.2

36.5 ± 12.1

36.9 ± 12.9

 RVEF (%)

43.1 ± 13.6

46.8 ± 11.2

54.4 ± 10.0**

 LVEDV Index (ml/m²

58.5 ± 16.1

68.9 ± 21.2**

66.6 ± 16.1**

 LVESV Index ml/m²)

19.2 ± 8.2

26.1 ± 16.6**

21.3 ± 8.2*

 LVSV Index (%)

39.2 ± 11.9

42.8 ± 13.4

45.3 ± 10.8**

 LVEF (%)

67.3 ± 9.7

63.8 ± 14.5

68.3 ± 7.6

 Systolic septal angle (°)

165.5 ± 23.9

145.9 ± 15.5

150.5 ± 108.4*

 Diastolic septal angle (°)

143.34 ± 11.0

138.3 ± 10.3**

134.9 ± 7.9*

 RV mass index (g/m²)

21.9 ± 12.5

14.4 ± 5.5**

11.9 ± 5.8*

 LV mass index (g/m²)

48.0 ± 12.3

57.2 ± 21.1**

47.7 ± 10.7

 VMI (ratio)

0.47 ± 0.27

0.28 ± 0.13**

0.26 ± 0.18*