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We aimed to evaluate the efficiency of our hearing screening program, prior to hospital discharge, together with the consistency of our teamwork including first year residents by assessing a learning curve for the operators involved.We evaluated all the data collected during the first stage of the screening program of all non-NICU neonates from March 2009 to July 2013, analyzing by means of a linear regression model, the monthly referral rate for the whole period of activity of each group of residents.performances of each group of screeners were statistically different (chi square test p 0.005). The nptrend test showed that group 2 (p = 0.01) and group 4 (p = 0.01) reached a statistical significance in higher and lower referral rates respectively. No statistical differences were found in other groups (Group 1 p = 0.161; Group 3 p = 0.853).Despite a statistically significant difference in the performances between the groups of residents, the referral rates for each group (range 6.18%-9.29%) and the overall referral rate for the whole period (7.84%) agree with the values commonly reported for TEOAEs in the literature. It means that our screening program is reasonably effective despite a yearly turnover of operators.