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Table 2 Logistic regression analyses for duration of walking ACS associated with academic achievement in Chilean adolescents, after adjusting for sex, weight status, birth weight, physical activity, screen time, maternal education, and SES

From: Associations between the duration of active commuting to school and academic achievement in rural Chilean adolescents

  Language Mathematics
  OR (95% CI) p OR (95% CI) p
Sex
 Girls 1.00   1.00  
 Boys 2.09 (1.19 to 3.67) 0.010 1.19 (0.71 to 2.01) 0.506
Weight status
 Normoweight 1.00   1.00  
 Overweight + obesity 0.64 (0.40 to 0.95) 0.023 0.77 (0.46 to 1.31) 0.343
Birth weight
  > 2500 g 1.00   1.00  
  ≤ 2500 g 0.22 (0.04 to 1.24) 0.085 0.88 (0.34 to 2.28) 0.869
Self-reported physical activity
 Low-Medium 1.00   1.00  
 High 1.45 (0.76 to 2.77) 0.261 1.35 (0.71 to 2.56) 0.353
Screen time recommendation
  < 2 h/day 1.00   1.00  
  ≥ 2 h/day 0.98 (0.59 to 1.65) 0.962 0.25 (0.13 to 0.50) <0.001
Mother’s education
 Below university level 1.00   1.00  
 University level 0.66 (0.30 to 1.43) 0.290 1.38 (0.67 to 2.83) 0.375
SES
 Low, n (%) 1.00   1.00  
 Medium, n (%) 0.67 (0.19 to 2.43) 0.547 1.80 (0.45 to 7.30) 0.406
 High, n (%) 1.38 (0.59 to 2.80) 0.433 1.08 (0.68 to 1.73) 0.737
Active commuting to school
 Non-ACS 1.00   1.00  
 ACS ≤30 min 1.32 (0.72 to 2.41) 0.363 1.20 (0.69 to 2.07) 0.523
 ACS 30-60 min 3.53 (1.12 to 3.37) 0.003 2.19 (1.06 to 5.05) 0.028
 ACS ≥60 min 0.37 (0.06 to 2.21) 0.277 0.54 (0.12 to 2.48) 0.433
 Likelihood ratio (Chi2) 116.18 <0.001 40.27 <0.001
 Hosmer–Lemeshow 3.66 0.818 2.423 0.933
 Correctly classified (%) 72.2 63.7
 Observations 389 389