Fig. 2From: A comparison of standard and compositional data analysis in studies addressing group differences in sedentary behavior and physical activityGeometric mean barplot indicating the time spent sedentary, standing and in physical activity (PA) at work and leisure stratified by sex and age, in terms of differences from the geometric mean value of the entire population. Each bar represents the geometric mean of the specific group (for example men), expressed in terms of a ratio measured on a logarithmic scale (as expressed on the y axis) to the geometric mean of the entire population for each behavior (sedentary, standing and PA). A ratio of 0 reflects that the geometric means of the specific group and the entire population are equal. Positive and negative values show that the group geometric mean is larger and smaller, respectively, than the entire population. On the basis of the log ratios displayed in the figures, the actual ratio of the geometric group mean to the whole group geometric mean can be calculated. For example, the bar corresponding to the woman group is negative (−0.18) for sedentary time at work. This means that, on average, women spend 16% (100-exp of −0.18) less time at work in sedentary behavior than the whole groupBack to article page