Figure 2.

Odds ratio of heart rate variability parameters evaluated from Holter recordings of 22 female patients with fibromyalgia and 22 matched healthy controls. The cut-off points selected for each parameter are shown in Table 3. Data are presented as odds ratio (95% confidence interval)

Lerma et al. Arthritis Research & Therapy 2011 13:R185   doi:10.1186/ar3513
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