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Table 1 Study characteristics, i.e. mean (M), standard deviation (SD) and range or sample size (N) and percentage (%) of n = 2488 children and adolescents based on the first examination in the IDEFICS/I.Family cohort of each child

From: Urban Moveability and physical activity in children: longitudinal results from the IDEFICS and I.Family cohort

 All (n = 2488)Male (n = 1270)Female (n = 1218)
 Mean(SD)RangeMean(SD)RangeMean(SD)Range
Light PA (min / day)293(83.2)(5.5–746.9)292(82.2)(6.5–571.8)293(84.2)(5.5–746.9)
MVPA (min / day)48.7(24.4)(0–199.5)53.8(25.3)(0–194)42.4(22.2)(0–199.5)
Moveability index0.04(3.5)(−13.5–10.8)0.0(3.4)(− 10.7–8.7)0.1(3.5)(− 12.9–10.8)
Public open space density4.8(4.1)(0–18.3)4.7(4.1)(0.04–16.7)4.9(4.1)(0–18.3)
Residential density2.2(1.3)(0–6.8)2.2(1.3)(0–6.7)2.2(1.3)(0–6.8)
Land use mix0.72(0.14)(0.01–0.99)0.72(0.15)(0.01–0.99)0.72(0.15)(0.01–0.99)
Intersection density7.7(3.8)(0.1–24.7)7.7(3.8)(0–21.2)7.8(3.8)(0.14–24.7)
Public transport density3.4(1.7)(0–6.5)3.4(1.7)(0–6.4)3.4(1.7)(0–6.5)
Age (years)7.5(2.4)(3–15.8)7.5(2.4)(3–15.8)7.6(2.4)(3–14.7)
BMI z-scorea0.4(1.1)(−5.4–4)0.3(1.2)(−5.3–3.7)0.4(1.1)(− 5.4–4.0)
Valid weartime (min / day)695(113)(363–1361)697(117)(366–1361)693(108)(363–1334)
N% N% N% 
Moveability category
 High (score ≥ 0)121949.0 62349.1 59648.9 
 Low (score < 0)126951.0 64750.9 62251.1 
Parental educationb
 Missing763.1 413.2 352.9 
 Low (Ievel below 2)2078.3 1068.4 1018.3 
 Medium (level 3, 4)106742.9 54242.7 52543.1 
 High (level 5 and more)113845.7 58145.8 55745.7 
Parental safety concerns
 Missing1455.8 836.5 625.1 
 No concerns141757.5 72356.9 69457.0 
 Safety concerns92636.5 46436.5 46237.9 
Sportsclub membership
 Missing1496.0 796.2 705.8 
 Yes143057.5 72256.9 70858.1 
 No90936.5 46936.9 44036.1 
BMI categoriesa
 Normal weight199380.1 103381.3 96078.8 
 Overweight / obese49519.9 23718.7 25821.2 
Season
 Autumn / winter143157.5 72557.1 70658.0 
 Spring / summer105742.5 54542.9 51242.0 
  1. aBMI z-score and categories according to Cole & Lobstein [25]
  2. bMaximum ISCED category of both parents [26]