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Table 1 Comparisons between mean daily activity monitor data from the Actigraph and Actical, expressed as raw and log-transformed data (n = 56, total of 600 observation days).

From: Comparison of two different physical activity monitors

  Actigraph counts·min-1·day-1 mean (SD) Actical counts·min-1·day-1 mean (SD) CV % R
Raw 216.2 (106.2) 188.0 (101.1)* 15.5 0.90**
Log-transformed 5.26 (0.48) 5.11 (0.51)* 3.1 0.90**
  1. *statistically significant, t-test (P < 0.0001)
  2. **statistically significant, correlation (P < 0.0001)
  3. Raw = raw activity monitor data.
  4. Log-transformed = activity monitor data after log-transformation, log (counts·min-1·day-1).
  5. CV = coefficient of variation of the difference between Actigraph and Actical.
  6. R = Pearson Product Moment Correlation Coefficient.