title page
Contents
I. Introduction 6
II. Material and Methods 7
Statistical Analyses 8
III. Results 9
Study Population(Table1) 9
Comparison of Perinatal and Birth Data between Periods I and II(Table2) 9
Neonatal Morbidity(Table3) 9
Neurodevelopmental Outcomes at the Corrected age of 18 Months(Table4) 10
Factors Associated with Cerebral Palsy(Table5) 10
IV. Discussion 11
V. References 14
Appendix 17
Abstract 22
국문초록 24
Table 1. Study Population during the Two Periods 17
Table 2. Comparison of Perinatal and Birth Data between Periods I and II 18
Table 3. Neonatal Morbidity 19
Table 4. Neurodevelopmental Outcomes at the Corrected Age of 18 Months 20
Table 5. Factors Associated with Cerebral Palsy 21