Provan SA, et al. - Researchers performed this meta-analyses study, wherein, heart rate variability (HRV), as a measure of parasympathetic cardiac autonomic dysfunction (AD), was assessed and compared between patients with inflammatory joint disorders (IJD) and healthy controls. Additionally, they assessed the effect of inflammation, physical inactivity and pain on HRV in IJD. Findings demonstrated that cardiac parasympathetic AD was present in patients with IJD and was associated with inflammation.