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Table 3 Characteristic according to quartiles of FEV1 (% predicted)a

From: Impaired lung function is associated with non-alcoholic fatty liver disease independently of metabolic syndrome features in middle-aged and elderly Chinese

 

Quartile 1 (n = 454)

Quartile 2 (n = 467)

Quartile 3 (n = 464)

Quartile 4 (n = 467)

P value

FEV1 (%)

0.66 ± 0.11

0.83 ± 0.03

0.95 ± 0.05

1.42 ± 0.26

<0.001

FVC (%)

0.66 ± 0.14

0.79 ± 0.12

0.92 ± 0.20

1.13 ± 0.30

<0.001

FEV1/FVC ratio

73.21 ± 22.91

77.23 ± 22.01

76.63 ± 22.81

78.02 ± 22.61

<0.001

MS (n, %)

282(62.11)

273(58.46)

255(54.96)

240(51.39)

<0.001

NAFLD (n, %)

200(44.05)

171(36.62)

162(34.91)

145(30.79)

<0.001

Age (years)b

56.37 ± 8.22

55.51 ± 7.72

55.17 ± 8.12

56.68 ± 7.50

0.004

Male (n, %)

47(10.35)

82(17.56)

164(35.34)

382(81.80)

<0.001

Current smoking (n, %)

55(12.11)

68(14.56)

87(18.75)

159(34.05)

<0.001

Current drinker (n, %)

64(14.10)

90(19.27)

89(19.18)

175(37.47)

<0.001

Regular exerciser (n, %)

263(57.93)

285(61.03)

272(58.62)

287(61.46)

0.872

BMI (kg/m2)

24.81 ± 3.93

24.76 ± 3.64

25.05 ± 3.42

24.74 ± 3.32

0.556

SBP (mmHg)

136.28 ± 19.26

135.84 ± 19.25

134.38 ± 18.12

133.54 ± 20.55

0.002

DBP (mmHg)

82.50 ± 10.43

82.12 ± 10.49

82.06 ± 10.36

81.90 ± 10.81

<0.001

WC (cm)

86.04 ± 11.68

85.06 ± 11.34

86.05 ± 10.27

84.70 ± 10.29

0.015

FPG (mmol/L)

6.55 ± 1.88

6.50 ± 3.64

6.48 ± 1.90

6.36 ± 1.49

0.004

2 h PG (mmol/L)

9.30 ± 4.20

9.10 ± 4.39

9.03 ± 4.09

8.47 ± 3.79

0.017

A1C(%)

5.88 ± 1.07

5.88 ± 1.14

5.83 ± 1.11

5.70 ± 0.93

0.035

HOMA-IRc

2.30(1.42–3.33)

1.79(1.28–2.63)

1.70(1.23–2.52)

1.64(1.15–2.31)

0.025

eGFR

124.85 ± 25.05

121.73 ± 21.24

119.85 ± 21.90

115.14 ± 21.27

<0.001

Triglycerides (mmol/L)

1.86 ± 1.26

1.73 ± 1.35

1.80 ± 1.38

1.77 ± 1.42

0.035

TC (mmol/L)

5.06 ± 0.93

4.95 ± 1.02

4.98 ± 0.84

4.92 ± 0.82

0.125

HDL–c (mmol/L)

1.33 ± 0.32

1.32 ± 0.30

1.32 ± 0.31

1.32 ± 0.31

0.031

LDL-c (mmol/L)

2.83 ± 0.75

2.79 ± 0.79

2.70 ± 0.67

2.69 ± 0.68

0.007

ALT(units/l)

21.22 ± 14.07

21.15 ± 14.28

19.94 ± 13.53

18.17 ± 13.09

<0.001

AST(units/l)

24.97 ± 12.85

24.31 ± 12.66

24.03 ± 11.49

22.47 ± 10.29

<0.001

GGT(units/l)

41.25 ± 37.73

38.07 ± 43.25

31.24 ± 34.71

28.99 ± 36.52

<0.001

  1. SBP systolic blood pressure, DBP diastolic blood pressure, BMI body mass index, OGTT Oral Glucose Tolerance Test, FPG Fasting Plasma Glucose, 2 h PG postprandial 2-h Plasma Glucose, HbA1C HbA1C hemoglobin A1C, eGFR estimate the glomerular filtration rate, LDL Low-density lipoprotein, HDL high--density lipoprotein, ALT Alanine aminotransferase, AST aspartate aminotransferase, GGT γ-glutamyltransferase
  2. aData are presented as mean ± SD, median (interquartile range), or number (percent); P value was calculated after adjustment for age, gender
  3. bNot adjusted for itself
  4. cThis variables was log transformed before analysis