The comprehensive study of Part et al. (1) has prompted us to highlight the characteristics and recent worrying tendencies in adolescent birth rates in Greece. We analyzed official national birth data obtained from the Hellenic Statistical Authority (available since 1956).The proportion of neonates born to adolescent mothers (aged 15-19 years) in Greece has decreased 4.6-fold exponentially (R2 = 0.960, p < 0.0001) from a historic high of 12.53% in 1979 to an all-time low of 2.29% in 2012, with an average annual percentage change (AAPC) of -5.3% and a half-life time of 13.1 years. Likewise, the age-specific fertility rate of the 15-19-year age group (ASFR_15-19) has declined 6.1-fold exponentially (R2 = 0.986, p < 0.0001) from a historic high of 52.88/1000 in 1979 to a historic low of 8.69/1000 in 2000, with an AAPC of -9.0% and a half-life time of 7.7 years.
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