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Table 3 Differences in BMI z-score between participants meeting vs. not meeting the physical activity, screen time, and sleep duration recommendations and combinations of these recommendations in the full study sample (n = 803)

From: Proportion of preschool-aged children meeting the Canadian 24-Hour Movement Guidelines and associations with adiposity: results from the Canadian Health Measures Survey

  Total sample (n = 803) Boys (n = 400) Girls (n = 403)
BMI z-score 95% CI BMI z-score 95% CI BMI z-score 95% CI
At least PA
 Meet 0.59E 0.39–0.79 0.79 0.56–1.03 F ̶
 Do not meet 0.59E 0.38–0.80 0.55E 0.30-0.79 0.62E 0.33-0.92
At least ST
 Meet 0.41E 0.22–0.61 F ̶ 0.40E 0.13–0.66
 Do not meet 0.65 0.47–0.83 0.78 0.59–0.98 0.52E 0.19-0.84
At least SLEEP
 Meet 0.59 0.43–0.76 0.63 0.45–0.80 0.57E 0.28-0.85
 Do not meet 0.57E 0.21–0.93 1.16E 0.52-1.81 F ̶
At least PA + ST
 Meet 0.41E 0.23–0.58 0.52E 0.19-0.85 F ̶
 Do not meet 0.62 0.45–0.79 0.73 0.54–0.92 0.52E 0.23-0.80
At least PA + SLEEP
 Meet 0.60E 0.38–0.82 0.69E 0.45-0.93 F ̶
 Do not meet 0.58 0.39–0.77 0.72E 0.44-1.00 0.46E 0.23-0.69
At least ST + SLEEP
 Meet 0.45E 0.22–0.67 F ̶ 0.45E 0.16–0.73
 Do not meet 0.63 0.46–0.80 0.76 0.58–0.95 0.50E 0.18-0.81
All three recommendations
 Meet 0.46E 0.27–0.65 0.59E 0.21-0.96 F ̶
 Do not meet 0.61 0.44–0.78 0.72 0.54–0.90 0.50E 0.22-0.79
  1. BMI body mass index, CI confidence interval, PA physical activity, SLEEP sleep duration, ST screen time
  2. Meeting the recommendations is defined as ≥180 min/day of physical activity (of which ≥60 min is moderate-to-vigorous physical activity), ≤1 h/day of screen time, and 10–13 h/day of sleep
  3. No significant differences in BMI z-scores were observed between meeting vs. not meeting the different recommendations
  4. Physical activity was based on accelerometer data, and screen time and sleep duration were parent-reported
  5. EUse with caution (coefficient of variation >16.6%)
  6. FToo unreliable to be published (coefficient of variation >33.3%)