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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 DesignSample Size, Mean Age (mo; SD), RangeAverage Wear-Time min/day (SD), Non-Wear CriteriaMonitoring TimeAccelerometer Type & Epoch LengthAccelerometer PlacementPhysical Activity counts/min (SD)Study Quality
Canada (n = 1)
 Borkhoff et al. (2015) [45]Cross-sectionalN = 20552 (54), ≥60 min of consecutive zeros12 h, 7 daysActical, 2-sWaist78.2 (30.8)10
Age = 8.2 (1.8), 4–10
China (n = 1)
 Jia et al. (2018) [49]Cross-sectionalN = 143NR, NR14 h, 7 daysActiGraph GT3X, 60-sWrist2580.5 (475.7)10
Age = 9 (0.8), 9
Taiwan (n = 1)
 Wang et al. (2019) [51]Cross-sectionalN = 183NR, ‘Device removal’ time replaced with mean activity counts24 h, 7 daysActiwatch 2, 30-sAnkle432.3 (124.8) a10
Age = 6.6 (0.4), 6
United States (n = 2)
 Tsai et al. (2011) [40]Cross-sectionalN = 22NR, ‘Device removal’ replaced with the adjacent activity counts, external motion time was removed from analysis16 h, 7 daysActiwatch, 30-sAnkle144.0 (66.0) a9
Age = 1.6 (0.6), 0.5–2.5
 Pitchford et al. (2017) [39]Cross-sectionalN = 23556.2 (157.2), ≥2 min of consecutive zeros matching accelerometer logged ‘device removal’ within a 30-min windowDaytime, 7 daysActiGraph GT3X, 15-sAnkle and Wrist1758.6 (609.6) a b9
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