Respiratory events in sleeping infants of the first year of life and their reference values

Abstract

The authors present the reference values of the major respiratory events based on polysomnographic evaluation of 2,073 sleeping infants of the first year of life. These reference values were developed in accordance with the adopted LMS (lambda-mu-sigma) algorithm aimed at smoothing and maximal approximation of the calculated values to the real ones. The article describes the centile curves and centile tables of the respiratory events indices, maximal lengths and densities of the different types of apneas, periodic breathing, oxygen saturation and de-saturation indices at different sleep stages of the 1-to-52-week-old infants. The reference values are compared with available literature data.