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Table 1 Baseline Characteristics of COPD-PH and COPD-NPH patients

From: Clinical characteristics and predictors of pulmonary hypertension in chronic obstructive pulmonary disease at different altitudes

Variables

LA

 

HA

 

COPD-NPH(n = 79)

COPD-PH(n = 36)

P*

COPD-NPH(n = 45)

COPD-PH(n = 68)

P**

male, n(%)

57(72.2)

24(66.7)

0.55

33(73.3)

48(70.6)

0.751

age (years)

66.51 ± 7.89

69.2 ± 8.76

0.098

66.53 ± 10.30

68.53 ± 8.34

0.260

BMI, Kg/m2

22.77 ± 3.71

22.64 ± 3.79

0.863

23.35 ± 3.56

21.06 ± 3.91

0.002

overweight/obesity, n(%)

22(27.8)

7(19.4)

0.336

11(24.4)

9(13.2)

0.126

smoking, n(%)

46(58.2)

19(52.8)

0.585

21(46.7)

28(41.2)

0.564

duration of cough, years

10.0(4.0,20.0)

10.0(4.0,20.0)

0.968

5.0(2,7.5)†

5.0(3.0,9.5)§

0.162

PASP, mmHg

¯¯¯¯

45.00(41.00,61.84)

 

¯¯¯¯

56.00(47.75,72.75)§

 

PH stage, n(%)

      

mild(36mmHg < PASP ≤ 45mmHg)

¯¯¯¯

18(50.0)

 

¯¯¯¯

13(19.1)§

 

moderate to severe(PASP > 45mmHg)

¯¯¯¯

18(50.0)

 

¯¯¯¯

55(80.9)

 
  1. *Comparison among patients with COPD-NPH and COPD-PH at LA
  2. **Comparison among patients with COPD-NPH and COPD-PH at HA.
  3. †Statistical significance was set to 0.05 compared with COPD-NPH patients at LA.
  4. §Statistical significance was set to 0.05 compared with COPD-PH patients at LA.
  5. Abbreviations: LA = low altitude;HA = high altitude;BMI = body mass index;BMI = body mass index; PASP = pulmonary artery systolic pressure
  6. Data are shown as mean ± SD, median (quartile) or n (%).
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BMC Pulmonary Medicine

ISSN: 1471-2466

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