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Table 2 Comparisons of IPAQ-C and ActiGraph for three categories of physical activity.

From: Performance of the international physical activity questionnaire (short form) in subgroups of the Hong Kong chinese population

  Moderate activity Minutes per day Vigorous activity Minutes per day Total MET Per week
IPAQ-C, mean(SD) 146.2 (164.8) 13.2 (46.1) 4250.6 (5053.9)
ActiGraph, mean(SD) 43.6 (23.9) 1.2 (3.1) 1284.3 (728.1)
IPAQ-C vs ActiGraph, difference (SE) 102.6*** (4.6) 12.0*** (1.3) 2966.3*** (140.1)
IPAQ-C vs ActiGraph -min, Spearman ρ correlation (SE) 0.09** (0.03) 0.16*** (0.03) 0.11*** (0.03)
IPAQ-C vs ActiGraph-count, Spearman ρ correlation (SE) 0.14*** (0.03) 0.06* (0.03) 0.16*** (0.03)
  1. MET: metabolic equivalent task per week (ActiGraph: 8*vigorous min + 4*moderate min, IPAQ: 8*vigorous min + 4*moderate min + 3.3*walking min)
  2. * P < 0.05.
  3. ** P < 0.01.
  4. *** P < 0.001.