CRP and obstructive sleep apnea syndrome: With regards to mean BMI of controls, there was no significant difference for the pooled MD of plasma CRP levels in individuals with OSA, compared to controls, whether the BMI of controls was ≤30 kg/m2 (MD = 0.06 mg/dL, p = 0.72); further, there was no study with individuals with a mean BMI > 30 kg/m2.