Figure 2.

Meta‐analysis for the net change in 24‐hour ambulatory mean blood pressure (MBP) seen across 12 placebo‐controlled continuous positive airway pressure (CPAP) trials in obstructive sleep apnea. While there was moderate heterogeneity among the studies (several had negative outcomes, as represented by the horizontal line crossing over the vertical zero value), the pooled effect was a net reduction in MBP of 1.69 mm Hg associated with CPAP therapy. CI indicates confidence interval. From Haentjens et al. ⁶²