Figure 3
From: Association of health behaviour with heart rate variability: a population-based study
![Figure 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2261-10-58/MediaObjects/12872_2010_Article_335_Fig3_HTML.jpg)
LF (log transformed) by sex and health behaviour in participants who play sports (275 males and 332 females). Bars represent age-adjusted LF means (± 95% CI) by categories of MET-hours per week, lines represent loess curves (± pointwise 95% CI), p-values were calculated by χ2-test comparing the deviance between the age-adjusted model and the model without the MET-hours per week variable.