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Table 1 Baseline descriptive characteristics of all participants and stratified by sex, ICAD

From: Substituting prolonged sedentary time and cardiovascular risk in children and youth: a meta-analysis within the International Children’s Accelerometry database (ICAD)

Characteristic*Total
N = 19,502
Boys
n = 9440
Girls
n = 10,062
Age, years11.2 (2.7)11.2 (2.7)11.1 (2.7)
Weight, kg42.5 (16.3)42.7 (17.3)42.3 (15.3)
Height, cm146.2 (15.9)146.9 (17.0)145.5 (14.7)
Standardized body mass index0.4 (1.2)0.5 (1.2)0.4 (1.2)
Waist circumference, cm67.0 (12.1)67.3 (12.3)66.7 (11.9)
Triglycerides, mmol/l0.7 (0.5–1.0)0.7 (0.5–0.9)0.7 (0.5–1.0)
HDL-cholesterol, mmol/ l1.5 (0.3)1.5 (0.3)1.5 (0.3)
Systolic blood pressure, mmHg104.8 (10.6)105.4 (10.9)104.2 (10.3)
Diastolic blood pressure, mmHg58.9 (8.5)58.4 (8.7)59.4 (8.3)
Fasting plasma glucose, mmol/ l5.0 (0.5)5.1 (0.5)5.0 (0.5)
Fasting serum insulin, pmol/ l42.8 (27.0–65.3)39.4 (25.0–59.0)46.6 (29.9–71.1)
CCMR−0.04 (0.61)− 0.04 (0.63)− 0.05 (0.59)
CCMRno adip− 0.02 (0.61)− 0.02 (0.62)− 0.02 (0.60)
PST, > 15 min bouts, hours/day1.8 (1.1–2.6)1.7 (1.1–2.5)1.8 (1.2–2.7)
PST, > 30 min bouts, hours/day0.7 (0.4–1.2)0.7 (0.3–1.2)0.7 (0.4–1.3)
Non-PST, ≤15 min bouts, hours/day4.1 (0.9)4.1 (0.9)4.2 (0.8)
Non-PST, ≤30 min bouts, hours/day5.3 (4.5–6.1)5.2 (4.3–7.0)5.4 (4.6–6.1)
Total sedentary time, hours/day6.2 (1.6)6.0 (1.6)6.3 (1.6)
LIPA, hours/day6.4 (1.4)6.4 (1.4)6.3 (1.4)
MVPA, hours/day0.5 (0.4)0.6 (0.4)0.4 (0.3)
Monitor wear time, hours/day13.0 (1.4)13.1 (1.4)13.0 (1.3)
  1. Data are means (SD)
  2. * Collected in all participants, except for: standardized body mass index (boys: n = 9430, girls: n = 10,047), triglycerides (boys: n = 2625, girls: n = 2705), HDL-cholesterol (boys: n = 3818, girls: n = 4031), systolic (boys: n = 7177, girls: n = 7549) and diastolic blood pressure (boys: n = 7155, girls: n = 7532), fasting plasma glucose (boys: n = 2451, girls: n = 2501), serum insulin (boys: n = 2431, girls: n = 2481), CCMR and CCMRno adip(boys: n = 2276, girls: n = 2319)
  3. Data are medians (IQR) due to skewed distribution
  4. Abbreviations: CCMR clustered cardio-metabolic risk score including waist circumference, CCMRno adip clustered cardio-metabolic risk score excluding waist circumference, PST prolonged sedentary time; LIPA: light-intensity physical activity, MVPA moderate-to-vigorous physical activity