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Table 1 Comparison of lung function measurements of enrolled participants and participants included in the analyses

From: Pre-adolescence DNA methylation is associated with lung function trajectories from pre-adolescence to adulthood

Lung function

Males

Females

Enrolled sample (N = 786)

Mean ± SD

Analytical sample (N = 377)

Mean ± SD

P value

Enrolled sample (N = 750)

Mean ± SD

Analytical sample

(N = 432)

Mean ± SD

P value

Age 10

 FVC (L)

2.35 ± 0.34

2.37 ± 0.34

0.385

2.24 ± 0.33

2.24 ± 0.33

0.862

 FEV1 (L)

2.06 ± 0.30

2.07 ± 0.30

0.405

2.00 ± 0.29

2.00 ± 0.30

0.991

 FEV1/FVC

0.87 ± 0.06

0.88 ± 0.06

0.831

0.90 ± 0.05

0.89 ± 0.06

0.620

Age 18

 FVC (L)

5.35 ± 0.72

5.36 ± 0.72

0.853

3.96 ± 0.53

3.97 ± 0.52

0.591

 FEV1 (L)

4.61 ± 0.62

4.61 ± 0.63

0.916

3.47 ± 0.45

3.48 ± 0.45

0.745

 FEV1/FVC

0.87 ± 0.07

0.86 ± 0.07

0.597

0.88 ± 0.07

0.88 ± 0.07

0.679

Age 26

 FVC (L)

5.85 ± 0.82

5.88 ± 0.83

0.588

4.24 ± 0.54

4.25 ± 0.54

0.694

 FEV1 (L)

4.60 ± 0.72

4.64 ± 0.73

0.582

3.42 ± 0.43

3.43 ± 0.42

0.894

 FEV1/FVC

0.79 ± 0.72

0.79 ± 0.07

0.904

0.81 ± 0.06

0.81 ± 0.06

0.662