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. 2014 Mar 18;9(3):e92005. doi: 10.1371/journal.pone.0092005

Table 3. Spearman correlation coefficients (r) and 95% confidence intervals (95% CI) between accelerometer counts, Physical Activity Energy Expenditure (PAEE), Physical Activity Level (PAL), Moderate and Vigorous Physical Activity (MVPA), sedentary time, the Improved Physical Activity Index (IPAI) (continuous and in categories), the Cambridge Index, and the Total Physical Activity Index in 433 participants of the EPIC Germany study training sample.

Spearman Correlation Coefficients, n = 433
IPAI IPAI categorical Cambridge Index Total PA Index
Accelerometer r 0.43 0.44 0.29 −0.01
counts (counts/min/day) 95%CI 0.35,0.50 0.36,0.51 0.21,0.38 −0.11,0.08
PAEE (kJ/kg/day) r 0.40 0.40 0.20 −0.05
95%CI 0.32,0.48 0.32,0.48 0.11,0.29 −0.15,0.04
PAL categories r 0.32 0.32 0.21 0.01
95%CI 0.25,0.42 0.25,0.41 0.11,0.30 −0.08,0.10
MVPA (min/day) r 0.34 0.34 0.25 0.04
95%CI 0.24,0.40 0.24,0.41 0.16,0.34 −0.05,0.14
Sedentary time r −0.28 −0.27 −0.13 −0.00
(min/day) 95%CI −0.36,−0.19 −0.36,−0.18 −0.22,−0.04 −0.10,0.09