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Table 3 Univariate analysis of association of miRNAs expression with clinical and demographic characteristics in asthmatics and in groups stratified according to age

From: Circulating miRNA expression in asthmatics is age-related and associated with clinical asthma parameters, respiratory function and systemic inflammation

miRNA

Independent variables

Asthmatics

EA

nEA

Beta (95% CI)

p-value

Beta (95% CI)

p-value

Beta (95% CI)

p-value

miRNA-146a

IL-8

0.18 (− 0.1 − 0.45)

0.2

0.26 (− 0.17 to 0.69)

0.22

0.14 (− 0.24 to 0.52)

0.46

sTNF RI

 − 0.18 (− 0.45 to 0.1)

0.2

0 (− 0.44 to 0.44)

0.99

 − 0.35 (− 0.7 to 0.01)

0.054

IL-6

 − 0.03 (− 0.3 to 0.25)

0.85

0.17 (− 0.25 to 0.58)

0.41

 − 0.24 (− 0.62 to 0.13)

0.19

TNFα

 − 0.16 (− 0.45 to 0.13)

0.27

 − 0.17 (− 0.61 to 0.26)

0.42

0.03 (− 0.4 to 0.46)

0.88

Age

0.01 (− 0.26 to 0.28)

0.96

0.3 (− 0.11 to 0.7)

0.14

0.07 (− 0.31 to 0.45)

0.68

FEV1%/FVC

0.06 (− 0.21 to 0.34)

0.63

0.02 (− 0.41 to 0.45)

0.92

0.05 (− 0.33 to 0.43)

0.8

Sex

0.23 (− 0.03 to 0.5)

0.08

0.22 (− 0.19 to 0.63)

0.29

0.29 (− 0.07 to 0.65)

0.11

FeNO > 25 ppb

0.02 (− 0.25 to 0.3)

0.86

 − 0.05 (− 0.49 to 0.39)

0.82

0.15 (− 0.23 to 0.52)

0.43

Atopy

 − 0.13 (− 0.41 to 0.16)

0.38

 − 0.13 (− 0.56 to 0.29)

0.53

 − 0.23 (− 0.65 to 0.18)

0.26

BMI > 25

0.01 (− 0.26 to 0.28)

0.96

0.14 (− 0.28 to 0.56)

0.49

 − 0.1 (− 0.48 to 0.28)

0.6

δR5–R20 > 20%

 − 0.04 (− 0.31 to 0.23)

0.76

0.18 (− 0.25 to 0.6)

0.4

 − 0.27 (− 0.64 to 0.09)

0.14

ACT < 20

0.07 (− 0.21 to 0.34)

0.63

 − 0.05 (− 0.49 to 0.38)

0.8

0.32 (− 0.04 to 0.68)

0.08

miRNA-126a

IL-8

 − 0.24 (− 0.51 to 0.03)

0.09

 − 0.06 (− 0.5 to 0.38)

0.79

 − 0.18 (− 0.57 to 0.21)

0.35

sTNF RI

 − 0.42 (− 0.68 to  −0.17)

0.001

 − 0.21 (− 0.64 to 0.22)

0.33

 − 0.28 (− 0.65 to 0.09)

0.13

IL-6

 − 0.23 (− 0.5 to 0.04)

0.09

 − 0.29 (− 0.69 to 0.12)

0.15

 − 0.05 (− 0.45 to 0.34)

0.79

TNFα

 − 0.34 (− 0.62 to  − 0.07)

0.02

 − 0.44 (− 0.84 to  − 0.04)

0.03

0.24 (− 0.18 to 0.67)

0.25

Age

 − 0.42 (− 0.67 to  − 0.17)

0.001

 − 0.1 (− 0.52 to 0.32)

0.64

0.06 (− 0.33 to 0.44)

0.77

FEV1%/FVC

0.19 (− 0.08 to 0.46)

0.16

 − 0.04 (− 0.46 to 0.38)

0.84

 − 0.06 (− 0.44 to 0.33)

0.76

Sex

0.06 (− 0.21 to 0.33)

0.67

0.11 (− 0.31 to 0.53)

0.59

 − 0.02 (− 0.4 to 0.37)

0.93

FeNO > 25 ppb

0.04 (− 0.23 to 0.32)

0.76

 − 0.2 (− 0.62 to 0.22)

0.34

0.41 (0.06 to 0.76)

0.024

Atopy

0.19 (− 0.1 to 0.48)

0.2

0 (− 0.44 to 0.43)

0.98

0.11 (− 0.33 to 0.55)

0.6

BMI > 25

 − 0.18 (− 0.45 to 0.09)

0.18

 − 0.21 (− 0.62 to 0.2)

0.3

0.05 (− 0.34 to 0.44)

0.8

δR5-R20 > 20%

 −  0.27 (− 0.53 to  − 0.003)

0.047

 − 0.19 (− 0.61 to 0.23)

0.36

 − 0.25 (− 0.62 to 0.13)

0.19

ACT < 20

0.02 (− 0.25 to 0.29)

0.89

 − 0.24 (− 0.65 to 0.17)

0.23

0.55 (0.23 to 0.87)

0.002

miRNA-106a

IL-8

 − 0.25 (− 0.52 to 0.02)

0.07

 − 0.07 (− 0.5 to 0.36)

0.74

 − 0.32 (− 0.69 to 0.05)

0.08

sTNF RI

 − 0.46 (− 0.7 to 0.21)

 < 0.001

 − 0.27 (− 0.69 to 0.14)

0.19

 − 0.39 (− 0.74 to  − 0.04)

0.03

IL-6

 − 0.11 (− 0.38 to 0.16)

0.41

0.07 (− 0.34 to 0.48)

0.73

 − 0.19 (− 0.57 to 0.19)

0.32

TNFα

 − 0.11 (− 0.4 to 0.18)

0.45

 − 0.09 (− 0.52 to 0.34)

0.68

0.04 (− 0.39 to 0.47)

0.86

Age

 − 0.38 (− 0.63 to  − 0.13)

0.003

 − 0.26 (− 0.66 to 0.14)

0.19

0.14 (− 0.24 to 0.51)

0.46

FEV1%/FVC

0.23 (− 0.04 to 0.49)

0.09

0.09 (− 0.33 to 0.51)

0.65

 − 0.03 (− 0.41 to 0.35)

0.87

Sex

 − 0.15 (− 0.41 to 0.12)

0.27

 − 0.35 (− 0.74 to 0.04)

0.07

0.17 (− 0.21 to 0.54)

0.91

FeNO > 25 ppb

0.15 (− 0.12 to 0.42)

0.26

0.06 (− 0.37 to 0.49)

0.77

0.42 (0.07 to 0.76)

0.02

Atopy

 − 0.01 (− 0.3 to 0.27)

0.93

 − 0.21 (− 0.62 to 0.2)

0.3

 − 0.09 (− 0.52 to 0.34)

0.67

BMI > 25

 − 0.17 (− 0.44 to 0.09)

0.19

 − 0.07 (− 0.48 to 0.34)

0.72

 − 0.07 (− 0.45 to 0.31)

0.7

δR5–R20 > 20%

 − 0.17 (− 0.43 to 0.1)

0.22

 − 0.13 (− 0.55 to 0.29)

0.53

 − 0.01 (− 0.39 to 0.37)

0.95

ACT < 20

0.22 (− 0.04 to 0.49)

0.09

0.14 (− 0.27 to 0.56)

0.49

0.67 (0.39 to 0.95)

 < 0.001

miRNA-19b

IL-8

0.03 (− 0.25 to 0.31)

0.81

0.18 (− 0.26 to 0.61)

0.4

 − 0.04 (− 0.43 to 0.35)

0.84

sTNF RI

 − 0.11 (− 0.39 to 0.16)

0.42

0.11 (− 0.33 to 0.55)

0.6

 − 0.25 (− 0.62 to 0.11)

0.17

IL-6

 − 0.14 (− 0.41 to 0.13)

0.3

 − 0.17 (− 0.59 to 0.24)

0.41

0.01 (− 0.38 to 0.39)

0.97

TNFα

0.04 (− 0.25 to 0.34)

0.77

0.08 (− 0.36 to 0.52)

0.72

 − 0.13 (− 0.56 to 0.3)

0.54

Age

 − 0.17 (− 0.44 to 0.1)

0.2

0.19 (− 0.23 to 0.6)

0.36

 − 0.08 (− 0.46 to 0.3)

0.67

FEV1%/FVC

0.15 (− 0.11 to 0.42)

0.25

0.03 (− 0.4 to 0.46)

0.87

0.07 (− 0.31 to 0.45)

0.7

Sex

 − 0.01 (− 0.28 to 0.26)

0.94

 − 0.03 (− 0.45 to 0.39)

0.89

0 (− 0.38 to 0.38)

0.99

FeNO > 25 ppb

0.13 (− 0.14 to 0.41)

0.33

0.28 (− 0.14 to 0.7)

0.18

 − 0.13 (− 0.51 to 0.24)

0.48

Atopy

0.06 (− 0.23 to 0.35)

0.68

 − 0.08 (− 0.51 to 0.35)

0.7

0.1 (− 0.33 to 0.53)

0.62

BMI > 25

0.06 (− 0.21 to 0.33)

0.68

0.13 (− 0.29 to 0.55)

0.52

0.25 (− 0.12 to 0.62)

0.17

δR5–R20 > 20%

0.03 (− 0.24 to 0.31)

0.8

0.15 (− 0.27 to 0.58)

0.46

 − 0.01 (− 0.39 to 0.37)

0.97

ACT < 20

 − 0.22 (− 0.49 to 0.05)

0.1

 − 0.22 (− 0.64 to 0.2)

0.3

 − 0.2 (− 0.57 to 0.17)

0.28

  1. miRNA expression [2−ΔCt] and concentration of cytokines [pg/mL] were log-2 transformed before the analysis. Bold text indicates a statistically significant p-value
  2. EA elderly asthmatics, nEA non-elderly asthmatics, FeNO fractional exhaled Nitric Oxide, ACT Asthma Control Test, FEV1%FVC forced expiratory volume in one second/forced vital capacity ratio, δR5–20 Hz difference of resistance at 5 and 20 Hz, BMI body mass index