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Table 2 Descriptive statistics and physical activity levels by weight group

From: Differences in physical activity and sedentary time in relation to weight in 8–9 year old children

  Thinness grade 1 or 2 (n = 44) Lower normal weight (n = 96) Higher normal weight (n = 102) Overweight and Obese (n = 59) P for trend*
Height (cm) 130.8 (6.5) 132.2 (6.4) 134.5 (6.3) 138.6 (5.6) < 0.001
Weight (kg) 23.4 (2.5) 26.4 (2.7) 31.3 (3.4) 41.0 (5.3) < 0.001
BMI SDS* -1.81 (0.47) -0.65 (0.36) 0.63 (0.40) 2.1 (0.54) < 0.001
Waist SDS± -0.32 (0.65) 0.28 (0.55) 1.09 (0.55) 2.35 (0.55) < 0.001
Fat mass index (kg/m1.28) 2.1 (1.6) 2.8 (1.4) 4.3 (1.5) 8.9 (3.1) < 0.001
Overall activity (counts/min) 651 (179) 616 (173) 590 (135) 582 (127) 0.013
Light activity (min/day)$ 364 (62) 358 (56) 366 (58) 390 (49) 0.006
Moderate activity (min/day)$ 59 (21) 55 (23) 53 (21) 52 (18) 0.085
Vigorous activity (min/day)$ 14 (12) 12 (11) 10(8) 7 (5) < 0.001
Very vigorous activity (min/day)$ 2 (2) 1 (2) 1 (2) 0.3 (0.6) < 0.001
Sedentary activity$ (min/day) 314 (52) 327 (89) 325 (128) 353 (169) 0.146
MVPA+ (min/day) 74 (31) 68 (31) 64 (26) 59 (21) 0.002
Meeting recommended activity level (%) 68 55 47 42 0.042v
  1. All values are mean (SD) unless otherwise stated
  2. * Oneway ANOVA with 4 weight groups used to calculate p for linear trend
  3. $Cut points used: Sedentary < 100; Light 100–1999; Moderate 2000–3999; Vigorous 4000–6999; Very Vigorous 7000+
  4. +Moderate to vigorous physical activity
  5. Recommended activity level ≥ 60 min of MVPA activity daily
  6. Chi squared test