Figure 3
From: Association of health behaviour with heart rate variability: a population-based study
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.