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Table 3 Simple linear regression models for associations of toddlers’ and parental demographic variables with accelerometer-derived sedentary time and physical activity

From: Demographic correlates of screen time and objectively measured sedentary time and physical activity among toddlers: a cross-sectional study

Demographic variables Sedentary time (min/day)a LPA (min/day)a MVPA (min/day)a TPA (min/day)a
β (95% CI) β (95% CI) β (95% CI) β (95% CI)
Toddlers’ Characteristics
 Age (months) −1.5 (-4.9, 1.9) 1.5 (-0.9, 4.0) −0.1 (-1.7, 1.5) 1.4 (-2.1, 4.9)
 Sex
  Male Reference Reference Reference Reference
  Female 13.9 (0.9, 26.9)** −3.1 (-12.7, 6.5) −9.3 (-15.2, -3.5)** −12.8 (-26.1, 0.5)*
 Race/Ethnicity
  European-Canadian/Caucasian Reference Reference Reference Reference
  Other 7.8 (-5.6, 21.2) −3.5 (-13.3, 6.2) −4.2 (-10.4, 1.9) −8.2 (-21.8, 5.5)
 Main type of child care
  Parental Reference Reference Reference Reference
  Child care center −5.8 (−25.5, 13.8) 8.2 (-6.0, 22.5) 0.0 (−8.9, 9.0) 7.5 (−12.5, 27.6)
  Day home 5.8 (−14.4, 26.0) −5.9 (−20.5, 8.7) 2.1 (−7.1, 11.3) −4.5 (−25.1, 16.0)
  Other 6.3 (−9.9, 22.6) 0.3 (−11.4, 12.1) −5.3 (−12.7, 2.1) −5.7 (−22.2, 10.8)
 Number of Siblings
  None Reference Reference Reference Reference
  1 −8.8 (−23.2, 5.6) 1.1 (−9.4, 11.7) 6.4 (−0.2, 12.9)* 8.0 (−6.7, 22.7)
   ≥ 2 2.8 (−16.3, 21.8) −3.2 (−17.2, 10.7) −0.6 (−9.2, 8.1) −3.9 (−23.3, 15.6)
Parental Characteristics
 Age (years) 0.8 (−0.7, 2.2) −0.5 (−1.5, 0.5) −0.4 (−1.0, 0.3) 0.9 (−2.3, 0.6)
 Sex
  Male Reference Reference Reference Reference
  Female 12.9 (−6.7, 32.6) −10.9 (−25.2, 3.4) −0.2 (−9.3, 8.9) −10.8 (−30.9, 9.3)
 Marital status
  Not married Reference Reference Reference Reference
  Married 4.5 (−12.6, 21.6) −0.3 (−12.8, 12.1) −3.9 (−11.7, 4.0) −3.9 (−21.3, 13.6)
 Country of birth
  Canada Reference Reference Reference Reference
  Other 9.2 (−5.9, 24.3) −4.3 (−15.3, 6.6) −4.9 (−11.8, 2.0) −9.7 (−25.0, 5.7)
 Highest level of education
  Post-graduate Reference Reference Reference Reference
  University 7.1 (−10.1, 24.2) −3.6 (−16.1, 9.0) −1.6 (−9.5, 6.3) −6.0 (−23.6, 11.5)
  Community/Technical college 13.7 (−5.1, 32.6) −5.8 (−19.6, 8.0) −6.0 (−14.6, 2.6) −12.7 (−32.0, 6.6)
  High school (grades 9–12) 1.8 (−22.0, 25.6) −3.3 (−20.7, 14.1) 0.8 (−10.1, 11.7) −3.5 (−27.9, 20.8)
 Household income (n = 142)
   > $100,000 Reference Reference Reference Reference
  $50,001 to $100,000 4.8 (−9.5, 19.1) −2.7 (−13.2, 7.9) −1.5 (−8.0, 5.0) −4.7 (−19.3, 9.9)
   ≤ $50,000 −11.1 (−33.3, 11.0) 6.8 (−9.5, 23.1) 6.5 (−3.5, 16.6) 12.7 (−9.9, 35.2)
  1. β (95% CI) unstandardized beta coefficients and 95% confidence intervals, LPA light-intensity physical activity, MVPA moderate- to vigorous-intensity physical activity, TPA total physical activity, min/day minutes per day
  2. **P < 0.05; *P < 0.10
  3. aCorrected for wear time using the residuals method
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BMC Public Health

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