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Table 2 Crude association between physical activity (mg) and antenatal, perinatal and one-year characteristics among one-year-old infants. 2015 Pelotas birth cohort, RS - Brazil

From: Objectively measured physical activity in one-year-old children from a Brazilian cohort: levels, patterns and determinants

 Acceleration (mg) ¥
 OverallWalkingNon walking
CharacteristicsMean (95% CI)p-value#Mean (95% CI)p-value#Mean (95% CI)p-value#
Maternal age (years) 0.053 0.277 0.333
  < 2027.0 (26.4; 27.6) 28.4 (27.5; 29.3) 25.8 (25.0; 26.6) 
 20–2926.3 (25.9; 26.6) 27.7 (27.2; 28.2) 25.0 (24.5; 25.4) 
 30–3926.3 (25.9; 26.7) 27.6 (27.0; 28.2) 25.2 (24.7; 25.7) 
  ≥ 4025.5 (24.1; 26.9) 27.9 (25.6; 30.2) 24.3 (22.5; 26.0) 
Assets index (quintiles) 0.814 0.108 0.625
 1 (poorest)26.1 (25.6; 26.6) 27.7 (26.9; 28.5) 24.9 (24.3; 25.6) 
 226.5 (26.0; 27.0) 28.4 (27.6; 29.3) 25.0 (24.3; 25.6) 
 326.8 (26.3; 27.3) 28.2 (27.4; 29.0) 25.6 (24.9; 26.3) 
 426.2 (25.7; 26.7) 27.0 (26.3; 27.8) 25.5 (24.8; 26.2) 
 5 (richest)26.1 (25.6; 26.7) 27.3 (26.4; 28.2) 24.9 (24.2; 25.6) 
Maternal schooling (years) 0.286 0.005 0.883
 026.6 (25.8; 27.4) 29.0 (27.7; 30.4) 25.2 (24.3; 26.1) 
 1–826.5 (26.0; 26.9) 28.1 (27.4; 28.8) 25.0 (24.4; 25.6) 
 9–1126.4 (26.0; 26.8) 27.8 (28.2; 28.4) 25.2 (24.7; 25.7) 
 ≥1226.2 (25.8; 26.6) 27.1 (26.5; 27.8) 25.2 (24.6; 25.8) 
Paternal schooling (years) 0.974 0.163 0.940
 026.0 (25.3; 26.6) 28.1 (27.0; 29.2) 24.8 (24.0; 25.6) 
 1–826.6 (26.2; 27.1) 27.7 (27.1; 28.4) 25.6 (25.0; 26.2) 
 9–1126.4 (25.9; 26.8) 28.1 (27.4; 28.8) 25.0 (24.4; 25.5) 
  ≥ 1226.2 (25.7; 26.7) 27.0 (26.3; 27.8) 25.2 (24.5; 25.9) 
Maternal PA during pregnancy (tertiles)ǂ < 0.001 < 0.001 0.050
 1 (lowest)25.3 (24.8; 25.9) 25.9 (25.1; 26.8) 24.7 (24.0; 25.4) 
 226.7 (26.2; 27.3) 28.2 (27.4; 29.1) 25.3 (24.6; 26.0) 
 3 (highest)27.5 (26.9; 28.0) 28.9 (28.1; 29.7) 25.7 (25.0; 26.5) 
Low birthweight 0.703 0.399 0.831
 Yes26.4 (26.2; 26.6) 28.4 (26.9; 29.8) 25.3 (24.4; 26.1) 
 No26.2 (25.5; 27.0) 27.7 (27.4; 28.1) 25.1 (24.8; 25.5) 
Infant’s sex < 0.001 0.0015 < 0.001
 Female25.8 (25.4; 26.1) 27.2 (26.6; 27.7) 24.5 (24.1; 25.0) 
 Male26.7 (26.6; 27.3) 28.3 (27.8; 28.8) 25.7 (25.3; 26.1) 
Preterm birth 0.561 0.680 0.736
 Yes26.2 (25.6; 26.8) 28.0 (26.9; 29.0) 25.3 (24.6; 26.0) 
 No26.4 (25.6; 26.8) 27.8 (27.4; 28.1) 25.1 (24.8; 25.5) 
Length-for-age (z-score) 0.062 0.278 0.724
  < −2 sd25.3 (24.1; 26.4) 26.7 (24.7; 28.7) 24.9 (23.5; 26.3) 
  ≥ − 2 sd26.4 (26.1; 26.6) 27.8 (27.4; 28.2) 25.2 (24.8; 25.5) 
Number of siblings 0.111 0.125 0.009
 026.7 (26.3; 27.0) 27.6 (27.1; 28.1) 25.7 (25.2; 26.1) 
 126.0 (25.6; 26.4) 27.6 (26.9; 28.2) 24.7 (24.2; 25.3) 
  ≥ 226.3 (25.8; 26.8) 28.6 (27.7; 29.4) 24.7 (24.0; 25.4) 
Daycare attendance 0.030 0.019 0.567
 No26.5 (26.2; 26.7) 27.9 (27.6; 28.3) 25.2 (24.9; 25.5) 
 Public25.1 (23.8; 26.4) 27.2 (25.2; 29.3) 23.5 (21.8; 25.1) 
 Private25.8 (25.0; 26.5) 26.5 (25.3; 27.7) 25.2 (24.2; 26.2) 
Contact with other children 0.095 0.023 0.771
 Yes25.9 (25.3; 26.5) 26.7 (25.8; 27.7) 25.3 (24.5; 26.1) 
 No26.5 (26.2; 26.7) 27.9 (27.6; 28.3) 25.1 (24.8; 25.5) 
Motor development (tertiles) < 0.001 0.344 0.179
 1 (lowest)25.7 (25.3; 26.1) 27.8 (26.8; 28.9) 25.3 (24.9; 25.7) 
 226.1 (25.7; 26.5) 27.3 (26.7; 28.0) 25.0 (24.4; 25.5) 
 3 (highest)27.5 (27.0; 27.9) 28.0 (27.5; 28.5) 24.7 (23.8; 25.7) 
Paternal PA (tertiles) < 0.001 0.0025 0.003
 1 (lowest)25.5 (25.0; 26.0) 26.5 (25.8; 27.3) 24.5 (23.8; 25.2) 
 226.7 (26.2; 27.2) 28.0 (27.3; 28.7) 25.4 (24.7; 26.1) 
 3 (highest)27.0 (26.5; 27.4) 28.3 (27.4; 28.9) 25.9 (25.2; 26.5) 
  1. ¥Marginal means obtained through linear regression # Heterogeneity p-value ǂVariable with highest missing values (n = 1463)