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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.