Fig. 2From: Sedentary and physical activity time differs between self-reported ATLS-2 physical activity questionnaire and accelerometer measurements in adolescents and young adults in the United Arab Emirates A Bland-Altman plot showing agreement between the Fibion accelerometer and ATLS-2 data for walking time. The solid horizontal line represents bias (the mean of the differences between the two methods), while the horizontal dashed lines show upper and lower limits of agreement (bias ± (SD * 1.96)). The regression line is depicted in blueBack to article page