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Table 2 Mean GLI Z-scores for FEV 1 , FVC and the FEV 1 /FVC ratio by age group and sex

From: Evaluation of the global lung function initiative 2012 reference values for spirometry in a Swedish population sample

   

FEV1

FVC

FEV1/FVC

Age group

Sex

N

Mean

(SD)

p-value

Mean

(SD)

p-value

Mean

(SD)

p-value

22-29 y

Women

28

0.05

(0.92)

 

0.26

(0.97)

 

−0.35

(0.83)

 

Men

32

−0.16

(0.80)

0.346

0.11

(0.84)

0.509

−0.41

(0.97)

0.818

30-39 y

Women

78

0.16

(0.89)

 

0.49

(0.89)

 

−0.56

(0.80)

 

Men

86

0.17

(0.88)

0.937

0.28

(0.92)

0.143

−0.20

(0.81)

0.006

40-49 y

Women

39

0.25

(0.78)

 

0.36

(0.82)

 

−0.21

(0.89)

 

Men

53

0.25

(0.98)

0.999

0.20

(0.95)

0.381

0.04

(0.80)

0.152

50-59 y

Women

35

0.46

(0.96)

 

0.61

(1.05)

 

−0.27

(0.98)

 

Men

31

0.29

(0.98)

0.464

0.31

(1.04)

0.245

−0.04

(0.80)

0.310

60-69 y

Women

21

0.20

(0.86)

 

0.43

(0.71)

 

−0.44

(0.74)

 

Men

24

0.41

(1.04)

0.481

0.41

(0.93)

0.939

−0.01

(0.88)

0.080

70-79 y

Women

19

0.16

(0.88)

 

0.51

(1.12)

 

−0.54

(0.94)

 

Men

17

0.68

(0.77)

0.071

0.68

(0.87)

0.604

−0.02

(0.57)

0.051

80-91 y

Women

24

0.07

(0.85)

 

0.07

(0.80)

 

−0.10

(0.86)

 

Men

14

0.30

(0.85)

0.420

0.38

(0.96)

0.292

−0.14

(0.68)

0.884

<40 y

Women

106

0.13

(0.90)

 

0.43

(0.91)

 

−0.50

(0.81)

 

Men

118

0.08

(0.87)

0.671

0.24

(0.90)

0.108

−0.26

(0.86)

0.030

≥40 y

Women

138

0.25

(0.86)

 

0.41

(0.92)

 

−0.29

(0.89)

 

Men

139

0.34

(0.95)

0.415

0.34

(0.96)

0.542

−0.01

(0.77)

0.006

All ages

Women

244

0.20

(0.88)

 

0.42

(0.91)

 

−0.38

(0.86)

 

Men

257

0.22

(0.92)

0.784

0.29

(0.93)

0.126

−0.12

(0.82)

0.001

  1. SD = standard deviation.
  2. P-values for difference between sexes (independent samples T-test).
  3. Bolded figures indicate p-values < 0.05 for difference between sexes.
  4. GLI = Global Lung Function Initiative.
  5. FEV1 = Forced Expiratory Volume in one second.
  6. FVC = Forced Expiratory Vital Capacity.