All issues > Volume 18(12); 1975

Original Article

J Korean Pediatr Soc. 1975;18(12):917-927. Published online December 31, 1975.

Statistical Observation on Neonates

Baek Youn Choo¹

¹Department of Pediatrics, College of Medicine, Seoul National University Seoul, Korea

Abstract

Statistical observation was performed on 2, 022 cases of neonates which were seen at the Nursery, Seoul National University Hospital, during the past 2 years and 9 months from Dec. 1972 to Aug. 1975. The results were as following; 1.The average sex ratio of male to female was 1.07 : 1. Among 2, 022 neonates, 10.5% were low birth weight (<2,500gm). 2. The mortality rate of neonates were 15. 3 per 1, 000 neonates. The causes of deaths in order of frequency were; ① Prematurity ② Respiratory disease ③ Congenital malformation ④ Birth injury. 3.The incidence of twin was 1 per 70 newborn infant. 4.Rate of growth and apgar score in neonates were as following; Height 50.9cm (Male) 50.3cm (Female) Head circumference 34. 5cm (Male) 34. 0cm (Female) Chest circumference 32.5cm (Male) 32. 9cm (Female) Apgar score 8.0 (Male) 7.9 (Female) 5. Gestational period of the infants were as following; Under 38 weeks; 258 (12.8%) Under 42 weeks; 1, 590 (78.6%) Above 42 weeks; 174 (8.6%) 6. The frequency of type of delivery in the newborn were as following; Spontaneous delivery; 783 (38.72%) Vacuum extracted delivery; 659 (32. 59%) Forcep delivery; 108(5.54%) Ceserean section; 401 (19.83%) Breech delivery; 71 (3. 52%) 7.Neonatal jaundice was seen in 1,279 (63.5%). 8. The incidence of congenital malformations was 119 (5.9%) The incidence of congenital malformations in male was 5. 82%, and was 5.94% in female. 9. The incidence of congenital malformations was higher in low birth weight group and was 13.19%, but was not related to the age or parity of mother. 10. Among the 116 cases of congenital malformations, the multiple malformations were seen in 9 cases (7. 56%) 11.Incidence and type of anomalies were shown in Table 9. 12.There were 48 cases of minor malformations, and 73 cases of major malformations.

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