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Table 4 Mediation analysis of the association between socioeconomic status at birth and of FEV1 (mL) at 15 years of age among boys (N = 1969)

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

Variable (model) Beta (SE) Change in beta value (%) p-value
Socioeconomic status at birth (1) 132.0 (17.9) 0 < 0.001 2.7
1 + height (2) 27.5 (13.2) -79.2 0.037 49.2
2 + weight (3) 20.1 (13.0) -84.8 0.124 50.6
3 + skin color (4) 9.0 (12.0) -93.2 0.485 52.2
4 + pubertal stage (5) 7.8 (15.6) -94.1 0.617 51.5
5 + allergy (6) 10.7(15.8) -91.9 0.498 50.9
6 + parental smoking in 2004 (7) 7.0 (17.9) -94.7 0.696 52.9
7 + parental wheezing in 2004 (8) 6.6 (18.0) -95.0 0.715 53.1
8 + adolescent smoking (9) 6.5 (18.0) -95.1 0.717 53.1
9 + adolescent wheezing (10) 8.3 (17.9) -93.7 0.645 53.6
10 + age (11) 7.6 (17.9) -94.2 0.665 53.7
11 + physical activity (12) 7.7 (17.9) -94.2 0.667 53.6
  1. 1993 Pelotas (Brazil) Birth Cohort, 2008.