Figure 2
From: Association between the neutrophil-to-lymphocyte ratio and obstructive sleep apnea: a meta-analysis

Comparison of the neutrophil-to-lymphocyte ratio between obstructive sleep apnea patients and controls. Calculation was based on the random effects model. The results were expressed as the standardized mean difference and 95% confidence intervals. OSA, obstructive sleep apnea; SD, standard deviation; SMD, standardized mean difference; CI, confidence interval.