CRP and obstructive sleep apnea syndrome: The usage of CPAP therapy for six months as a treatment for severe OSA, in the case of 37 adherent individuals, revealed a decrease in levels of inflammatory markers, especially in the case of the neutrophil–lymphocyte ratio, fibrinogen-to-albumin ratio, CRP-levels, and fibrinogen, which experienced a statistically significant reduction, thus reinforcing the benefits of CPAP use.