Objective:This randomized controlled study was carried out to evaluate the effect of mother's voice and lullaby on preterm infants' stress and sleeping-waking states.~Study design:The study was carried out in a newborn unit in a public hospital in Turkey. In this study, 90 preterm newborn were divided into three groups equally as mother's voice (n=30), lullaby (n=30) and control groups (n=30). Data were obtained by Mother and Newborn Identification Form, Newborn Stress Evaluation Form (NSEF) and Newborn Sleepıng-Wakıng State Evaluation Form (NSWEF). On the 1st, 3rd and 5th days of the study; Newborns' NSEF and NSWEF scores at pre-, post-study and on the fifth minutes were evaluated. Data were evaluated by using descriptive statistics, homogeneity tests, chi-square, intra-class correlation coefficent, two way of analysis on repeated measures, generalized linear model, pearson correlation analysis.
The study was planned in a randomized controlled manner in order to evaluate the effect of mother's voice and lullaby on stress and sleep-wake situations of premature babies.