Table 2 Characteristics of validation cohort subjects.

From: Different expression of circulating microRNA profile and plasma SP-D in Tibetan COPD patients

 

Control group

COPD group

P

Age (years)

66.89 ± 5.86

66.89 ± 8.05

t = 0.119

0.960

Gender (ratio/%)

  

X2 = 0.068

0.794

Male

24 (66.7%)

25 (63.3%)

  

Female

11 (33.3%)

10 (36.7%)

  

Smoking history

  

X2 = 0.516

0.473

Yes

18 (51.00)

15 (43.00)

  

No

17 (49.00)

20 (57.00)

  

Number of acute exacerbations

/

1.71 ± 0.85

  

mMRC

/

2.63 ± 0.93

  

FEV1% predicted (%)

80.59 ± 7.73

45.35 ± 7.70

t = 19.113

0.000

FEV1/FVC (%)

84.67 ± 7.68

48.00 ± 12.04

t = 15.185

0.000