Skip to main content

Table 1 Descriptive values (mean and SD) for lung function (in liters) according to the socioeconomic status

From: Socioeconomic trajectory from birth to adolescence and lung function: prospective birth cohort study

Variable

Boys (n = 1969)

Girls (n = 2036)

 

FEV1

FVC

FEV1

FVC

Socioeconomic status at birth (tertiles)

P < 0.001

P < 0.001

P < 0.001

P < 0.001

   Lowest

3.35 (0.66)

3.87 (0.75)

2.88 (0.44)

3.25 (0.53)

   Intermediate

3.47 (0.68)

4.02 (0.79)

2.92 (0.42)

3.29 (0.49)

   Highest

3.61 (0.62)

4.19 (0.71)

3.02 (0.44)

3.38 (0.51)

Socioeconomic status at 15 y (tertiles)

P < 0.001

P < 0.001

P < 0.001

P < 0.001

   Lowest

3.33 (0.67)

3.85 (0.77)

2.84 (0.45)

3.21 (0.52)

   Intermediate

3.45 (0.64)

3.99 (0.73)

2.94 (0.42)

3.30 (0.51)

   Highest

3.62 (0.66)

4.19 (0.75)

3.02 (0.42)

3.38 (0.49)

Socioeconomic trajectory from birth to 15 y

P < 0.001

P < 0.001

P < 0.001

P < 0.001

   Always poor

3.27 (0.65)

3.79 (0.76)

2.82 (0.45)

3.19 (0.55)

   Non-poor, poor

3.41 (0.71)

3.94 (0.80)

2.87 (0.43)

3.24 (0.47)

   Poor, non-poor

3.45 (0.66)

3.96 (0.76)

2.94 (0.41)

3.30 (0.51)

   Never poor

3.58 (0.64)

4.16 (0.74)

3.00 (0.43)

3.36 (0.50)

Total

3.46 (0.66)

4.00 (0.76)

2.93 (0.44)

3.30 (0.52)

  1. 1993 Pelotas (Brazil) Birth Cohort, 2008.
  2. FEV1: Forced expiratory volume; FVC: forced vital capacity