Predictors of validity and reliability of a physical activity record in adolescents

BMC Public Health

Table 3 Cohen’s kappa, 95% CI and prevalence-adjusted and bias-adjusted Cohen’s kappa (PABAK) for each activity category

	Cohen’s Kappa	95% CI	PABAK
Validity (accelerometer vs. PA record 1)
SED	0.45	0.33 – 0.57	0.52
LPA	0.36	0.25 – 0.48	0.44
MPA	0.46	0.34 – 0.58	0.53
VPA	0.45	0.33 - 0.57	0.52
Reliability (PA record 1 vs. PA record 2)
SED	0.58	0.44 – 0.72	0.63
LPA	0.61	0.47 – 0.75	0.66
MPA	0.49	0.35 – 0.63	0.55
VPA	0.36	0.21 -0.48	0.50

SED: Sedentary Intensity Physical Activity; LPA: Low Intensity Physical Activity; MPA: Moderate Intensity Physical Activity; VPA: Vigorous Intensity Physical activity.

ISSN: 1471-2458