The aim of this data base is to know exactly the future of a "vulnerable newborns" cared in Pontoise Hospital (In the neonatology service) and compare the information with the national data of preterm birth.

The aim of this data base is to know exactly the future of a "vulnerable newborns" cared in Pontoise Hospital (In the neonatology service), it means, newborns who are in these following risk categories:

• Birth before 33 weeks of amenorrhea
• Birth between 33 and 36 weeks of amenorrhea and fetal growth retardation lower to the 3rd for the gestation age
• Perinatal anoxic-ischemia
• Other children whose birth, perinatal history or the existence of a pathology classified them in a category at risk of developmental psychomotor disorders, the co-twin of a child of the preceding groups.
• A regular follow-up is made in Pontoise hospital till the age of 7 to 8 year sold. It tries to screen growth anomalies (neuromotor, sensorial, behavioral, and cognitive or growth development) or health status. The data collect allow us to monitor these parameters and do a statistical study with them.

These information may be used to inform the parents about the future of the premature children cared at Pontoise. They also may be used to compare these children's future with the national data (EPIPAGE 2)

Inclusion Criteria:

• Birth before 33 weeks of amenorrhea
• Birth between 33 and 36 weeks of amenorrhea and fetal growth retardation lower to the 3rd percentile for the gestational age.
• Perinatal anoxic-ischemia

Other children whose birth, perinatal history or the existence of a pathology classifies them in a category at risk of developmental psychomotor disorders, the co-twin of a child of the preceding groups.

Exclusion Criteria:

• Children born in normal conditions.

Preterm bith children