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Table 2 Comparison of CANPWR sample versus CHMS for children aged 6–11 years and youth aged 12–17 years

From: Canadian Pediatric Weight Management Registry (CANPWR): baseline descriptive statistics and comparison to Canadian norms

Measure CANPWR CHMS
Age range (years) (sample size) 6-11 (n = 171) 12-17 (n = 139) 6-11 (n = 2138) 12-17 (n = 1650)
Categorical variable analyses (Chi-Square comparisons)
Male (%) 52.0 42.4 51.3 53.0
Cultural background White (%) 65.5 71.9 77.1 80.0
Country of birth Canada (%) 88.3 85.6 90.3 90.0
Household income ≥ $100,000 (%) 24.6 28.1 33.0 36.7
Household highest education University/College (%) 62.0 58.3 86.2 85.9
Never have difficulty to go to sleep (%) 44.4 43.9 37.1 22.0
Never have difficulty to stay awake (%) 63.2 58.3 71.0 37.0
Physical activity at least 60 min daily ≥4 days/week (%) 38.0 24.5 33.8 19.2
Total screen time ≤2 h/day (%) 32.8 13.0 65.8 44.7
Continuous variable analyses (Student’s t-test comparisons), mean (SD)
Age (years) 9.5 (1.4) 14.1 (1.8) 8.6 (1.7) 14.5 (1.7)
Height (cm) 146.2 (11.2) 165.2 (10.7) 135.0 (12.0) 165.0 (10.0)
Weight (kg) 62.6 (16.6) 99.5 (24.8) 33.4 (10.7) 60.6 (16.9)
BMI z-score 3.64 (1.08) 3.43 (1.30) 0.55 (1.25) 0.43 (1.27)
Waist circumference (cm) 88.2 (13.9) 105.1 (18.1) 60.8 (9.8) 73.9 (12.4)
Systolic blood pressure (mmHg) 107 (11) 116 (12) 94 (8) 97 (8)
Diastolic blood pressure (mmHg) 66 (7) 70 (8) 61 (8) 62 (7)
Total cholesterol (mmol/L) 4.39 (0.75) 4.27 (0.79) 4.23 (0.69) 4.06 (0.76)
Fasting LDL cholesterol (mmol/L) 2.59 (0.62) 2.55 (0.63) 2.36 (0.67) 2.28 (0.73)
HDL cholesterol (mmol/L) 1.23 (0.32) 1.13 (0.42) 1.42 (0.31) 1.31 (0.30)
Fasting triglycerides (mmol/L) 1.35 (0.89) 1.48 (0.71) 0.82 (0.39) 0.97 (0.49)
Fasting glucose (mmol/L) 4.89 (0.33) 5.05 (0.97) 4.60 (0.87) 4.70 (0.65)
HbA1c (%) 5.45 (0.32) 5.49 (0.75) 5.46 (0.36) 5.43 (0.35)
Alanine aminotransferase (ALT)(IU/L) 27.0 (19.6) 26.9 (18.4) 27.8 (19.4) 27.3 (10.4)
Aspartate aminotransferase (AST)(IU/L) 27.4 (10.6) 24.2 (10.6) 33.8 (16.9) 27.0 (8.4)
Milk consumption (times/day) 1.9(1.3) 2.2(2.2) 1.7(1.6) 1.4(1.6)
Total dairy consumption (times/day) 2.7 (1.6) 3.1 (2.5) 2.6 (2.0) 2.0 (2.0)
Total fruit and vegetable consumption (times/day) 3.8 (2.5) 4.0 (2.5) 3.2 (1.8) 3.0 (2.3)
Water consumption (times/day) 3.9 (2.7) 3.3 (2.5) 3.4 (2.4) 3.3 (2.4)
Daily sugared drink consumption (times/day) 1.0 (1.1) 1.0 (1.0) 1.5 (1.1) 1.6 (1.3)
Mean sleeping hours per day 9.4 (1.1) 8.3 (1.2) 9.6 (1.0) 8.4 (1.2)
  1. Note: Bold text indicates statistically significant difference (p < 0.05) from same age category from CHMS