Salivary Cortisol as Stress Marker in Newborns Subjected to Double Weighing With Physiological Body Weight

Newborn stress will be evaluated by salivary cortisol levels at 48 hr of life. Saliva sample of the newborns will be collected in oral cavity at 48 hr of life. Samples collected will be storage at -80 C for up to 4 months and analysed by analysis laboratory of Poliambulanza Foundation.

Body weight trend between newborns subjected to double weighing or to body weight control will be carried out at 36 hr and 48 hr of life