CRP and obstructive sleep apnea syndrome: As far as Ishida et al. [18] are concerned, they showed that the magnitude of reduction in the CRP levels in 55 OSAHS patients after 6 months of good compliance to CPAP was observed in those with the higher baseline CRP levels (from 2.3 ± 0.3 mg/L to 1.7 ± 0.2 mg/L; p < 0.01).