Table 4.
Intensity | Measurement device |
Accelerometer estimatesa | ||||
LCCb | 95% CI | Pearson r | P value | BCFc | ||
Sedentary | EMAd | .07 | −0.02 to 0.16 | .12 | .11 | .61 |
Self-report | .05 | −0.06 to 0.16 | .07 | .35 | .76 | |
IPAQe | .06 | −0.05 to 0.18 | .08 | .28 | .80 | |
Moderate | EMA | .32 | 0.19 to 0.46 | .32 | <.001 | .94 |
BRFSSf | .12 | −0.02 to 0.26 | .12 | .09 | .42 | |
IPAQ | .04 | −0.10 to 0.19 | .05 | .54 | .19 | |
Vigorous | EMA | .28 | 0.15-0.41 | .29 | <.001 | .21 |
BRFSS | .02 | −0.12 to 0.16 | .02 | .78 | 0.12 | |
IPAQ | −.05 | −0.19 to 0.09 | −.05 | .50 | .14 | |
MVPAg | EMA | .28 | 0.16 to 0.41 | .32 | <.001 | .90 |
BRFSS | .08 | −0.06 to 0.22 | .09 | .25 | .30 | |
IPAQ | −.00 | −0.03 to 0.03 | −.002 | .98 | .18 |
aAccelerometer data were classified as moderate or vigorous using Freedson’s cut points.
bLCC: Lin’s concordance correlations.
cBCF: bias correction factor.
dEMA: ecological momentary assessment.
eIPAQ: International Physical Activity Questionnaire.
fBRFSS: Behavioral Risk Factor Surveillance System.
gMVPA: moderate- to vigorous-intensity physical activity.