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Table 1 Summary Table for Included Studies - Infants (<12mo; n = 5)

From: Infants’ and toddlers’ physical activity and sedentary time as measured by accelerometry: a systematic review and meta-analysis

Authors (Year) Study Design Sample Size, Mean Age (mo; SD), Range Average Wear-Time min/day (SD), Non-Wear Criteria Monitoring Time Accelerometer Type & Epoch Length Accelerometer Placement Physical Activity counts/min (SD) Study Quality
Canada (n = 1)
 Borkhoff et al. (2015) [45] Cross-sectional N = 20 552 (54), ≥60 min of consecutive zeros 12 h, 7 days Actical, 2-s Waist 78.2 (30.8) 10
Age = 8.2 (1.8), 4–10
China (n = 1)
 Jia et al. (2018) [49] Cross-sectional N = 143 NR, NR 14 h, 7 days ActiGraph GT3X, 60-s Wrist 2580.5 (475.7) 10
Age = 9 (0.8), 9
Taiwan (n = 1)
 Wang et al. (2019) [51] Cross-sectional N = 183 NR, ‘Device removal’ time replaced with mean activity counts 24 h, 7 days Actiwatch 2, 30-s Ankle 432.3 (124.8) a 10
Age = 6.6 (0.4), 6
United States (n = 2)
 Tsai et al. (2011) [40] Cross-sectional N = 22 NR, ‘Device removal’ replaced with the adjacent activity counts, external motion time was removed from analysis 16 h, 7 days Actiwatch, 30-s Ankle 144.0 (66.0) a 9
Age = 1.6 (0.6), 0.5–2.5
 Pitchford et al. (2017) [39] Cross-sectional N = 23 556.2 (157.2), ≥2 min of consecutive zeros matching accelerometer logged ‘device removal’ within a 30-min window Daytime, 7 days ActiGraph GT3X, 15-s Ankle and Wrist 1758.6 (609.6) a b 9
Age = 6.3 (3.6), 1–12
  1. NR not reported, mo months; aCalculation made to convert to counts/min; bMean of ankle and wrist counts produced