This study was carried out to assess the problems with the pregnant women, and check out the risk-factors in the high-risk pregnancies, using a simplified antepartum risk-scoring system, which was revised from Edwards' scoring system to be suitable for Korean situation. This instrument was included 4 categories, demographic, obstetric, medical and miscellaneous factors. This survey was based on the 1300 pregnant women who were admitted, from Jan. 1, 1988, to May 31, 1990, Chung Ang Medical Center. Data were collected from June 25, 1990 to July 7, 1990. Data was analyzed by x2-test, F-test, Pearsons correction, using statistical package SAS in NAS computer system, KIST. The results of the study were as follows; 1. 1313 infants were deliveried of these 560 infants (42.7%) were born to mothers with risk-scores greater than 7, and 753 infants (57.3%) were born to mothers risk-scores less than 7. 2. Maternal age, parity, education level, of the demographic factors were significant relation statistically to identify the high risk pregnancies (X2 = 20.88, 42.87, 15.60 P less than 0.01). 3. C-section, post term, incompetent cervix, uterine anomaly, polyhydramnios, congenital anomaly, sensitized RH negative, abortion, preeclampsia, excessive size infant, premature, low birth weight infant, abnormal presentation, perinatal loss, multiple pregnancy, of the obstetric factors were significant relation statistically to identify the high risk-pregnancies. (chi 2 = 175.96, 87.5, 16.28, 21.78, 9.46, 8.10, 6.75, 22.9, 64.84, 6.93, 361.43, 185.55, 78.65, 45.52, P less than 0.01). 4. Abnormal nutrition, anemia, UTI, other medical condition (pulmonary disease, severe influenza), heart disease, V.D., of the miscellaneous and medical factors, were significant relation statistically to identify the high risk-pregnancies. 5. Premature, low birth weight infant, contracted pelvis, abnormal presentation, of the risk factors were significantly related with Apgar score at 1 & 5 minute after birth and neonatal body weight. 6. Apgar score at 1 & 5 minute after birth and neonatal body weight were significantly negative correlated with risk-score. 7. There were statistically significant difference between risk-score and Apgar score at 1 & 5 minute after birth, 3 group (0-3, 4-6, above 7), and neonatal body weight, 2 group (below 2.5 kg, the other group) (F = 104.65, 96.61, 284.92, P less than 0.01). 8. Apgar score at 1 & 5 minute after birth (below 7), and neonatal body weight (below 2.5 kg), were significant relation statistically with risk score. (chi 2 = 65.99, 60.88, 177.07, P less than 0.01) were 60.8%, 60%.(ABSTRACT TRUNCATED AT 400 WORDS)