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Table 1 Demographic, functional and biochemical parameters for the whole group and according to the HRCT pattern

From: Predictive value of chest HRCT for survival in idiopathic pulmonary arterial hypertension

 

All patients

cGGO pattern

pGGO pattern

Normal pattern

p value*

N

Median (IQR) or N (%)

N

Median (IQR) or N (%)

N

Median (IQR) or N (%)

N

Median (IQR) or N (%)

Age [years]

110

44.3 (30.0–56.6)

24

32.1 (24.3–49.0)

26

44 (27–49.6)

60

46.8 (37.6–59.0)

0.064

Age < 40 years

110

44 (40)

24

15 (63)

26

12 (46)

60

17 (28)

0.012

Sex female:male

110

80:30 (73:27)

24

20:4 (83:17)

26

23:3 (88:12)

60

37:23 (62:38)

0.016

Ever-smokers

106

41 (39)

21

9 (43)

26

5 (19)

59

27 (46)

0.062

Positive history of haemoptysis

108

18 (16)

24

7 (29)

26

6 (23)

58

5 (9)

0.046

PFO

93

29 (31)

22

7 (32)

20

8 (40)

59

14 (27)

0.59

WHO FC:

107

 

24

 

26

 

57

 

0.14

 1

 

0

 

0

 

0

 

0

 

 2

 

57 (53)

 

14 (58)

 

17 (65)

 

26 (46)

 

 3

 

44 (41)

 

7 (29)

 

8 (31)

 

29 (51)

 

 4

 

6 (6)

 

3 (13)

 

1 (4)

 

2 (4)

 

DLCO [%pred]

84

66.8 (52.8–76.5)

15

58.7 (33.4–71.6)

21

70.6 (60.4–73.6)

48

66.7 (39.0–83.1)

0.27

6MWD [m]

105

396 (318–474)

21

436 (380–484)

26

415.5 (380–484)

58

379.5 (298.0–450.0)

0.06

6MWD risk group:

105

 

21

 

26

 

58

 

0.34

 Low

 

37 (35)

 

10 (48)

 

11 (42)

 

16 (28)

 

 Intermediate

 

63 (60)

 

11 (52)

 

14 (54)

 

38 (66)

 

 High

 

5 (5)

 

0 (0)

 

1 (4)

 

4 (7)

 

SpO2 [%]

105

86 (92–97)

21

96 (92–97)

26

96.5 (93–98)

58

95.0 (91.0–97.0)

0.20

6MWT ΔSpO2

102

5 (1–8)

21

5 (3–9)

26

4.5 (2–8)

55

4.0 (0.0–9.0)

0.50

NT-proBNP [pg/ml]

83

1079 (332–2592)

22

1619.5 (422.9–4331.0)

21

825 (219.9–1610.0)

40

1121.0 (360.0–2599.0)

0.30

NT-proBNP risk group:

83

 

22

 

21

 

40

 

0.54

 Low

 

18 (22)

 

4 (18)

 

6 (28.5)

 

8 (20)

 

 Intermediate

 

29 (35)

 

6 (27)

 

9 (43)

 

14 (35)

 

 High

 

36 (43)

 

12 (55)

 

6 (28.5)

 

18 (45)

 
  1. Bold values denote statistical significance at the p < 0.05 level
  2. cGGO, centrilobular ground glass opacifications; pGGO, panlobular ground glass opacification; IQR, interquartile range; PFO, persistent foramen ovale; WHO FC, World Health Organisation functional class; DLCO, diffusion lung capacity for carbon monoxide; 6MWD, 6-min walking test distance; SpO2, blood oxygen saturation; NT, proBNP- N-terminal pro-brain natriuretic peptide. *For comparison between three HRCT patterns