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Table 3 Crude and adjusted analyses of sedentary behavior trajectory from 11 to 18 years of age and pulmonary function parameters at 18 years of age by sex

From: Screen-based sedentary behavior during adolescence and pulmonary function in a birth cohort

  Male Female
Crudea Adjustedb Crudea Adjustedb
β (95% CI) p β (95% CI) p β (95% CI) p β (95% CI) p
FEV1 at 18 years (z-score)
 Sedentary behavior
  Always high Ref   Ref   Ref   Ref  
  Always moderate −0.088 (−0.201;0.025) 0.126 −0.003 (−0.091;0.085) 0.953 −0.051 (−0.137;0.035) 0.245 −0.021 (−0.080;0.039) 0.494
  Always low −0.233 (−0.457;-0.008) 0.042 0.081 (−0.097;0.260) 0.373 −0.039 (−0.204;0.126) 0.645 −0.005 (−0.119;0.109) 0.928
FVC at 18 years (z-score)
 Sedentary behavior
  Always high Ref   Ref   Ref   Ref  
  Always moderate −0.097 (−0.209;0.015) 0.088 −0.001 (−0.075;0.073) 0.980 −0.015 (−0.102;0.072) 0.742 0.012 (−0.048;0.073) 0.690
  Always low −0.159 (−0.381;0.062) 0.159 0.177 (0.027;0.327) 0.021 −0.050 (−0.217;0.117) 0.560 −0.017 (−0.132;0.099) 0.777
PEF at 18 years (z-score)
 Sedentary behavior
  Always high Ref   Ref   Ref   Ref  
  Always moderate −0.180 (−0.293;-0.068) 0.002 −0.091 (−0.193;0.012) 0.083 −0.002 (−0.088;0.084) 0.936 0.016 (−0.060;0.092) 0.675
  Always low −0.366 (−0.588;-0.144) 0.001 −0.162 (−0.369;0.046) 0.127 0.150 (−0.016;0.316) 0.076 0.110 (−0.035;0.255) 0.137
  1. FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; PEF: peak expiratory flow
  2. aCrude analyses – male: n = 1640; female: n = 1742
  3. bAdjusted for skin color, family income at birth, maternal schooling at birth, birth weight, smoking during pregnancy, mother’s height at birth, pulmonary function parameter at 15 years, body mass index at 11 and 15 years, Tanner stage at 15 years, leisure-time physical activity at 11 and 15 years, height at 18 years, wheezing in the previous year at 18 years, and corticoids in the previous 3 months at 18 years (male: n = 1243; female: n = 1389)