References
- Holst K, Hilden J, Henningsen I. The unborn and newborn child 1. Risk factors predicting complicated delivery in a general population of 4,102 women. Acta Obstet Gynecol Scand 1989; 68: 699–706
- Hobel C J, Hyvtirinen M A, Okada D M, Oh W. Prenatal and intrapartum high-risk screening. I. Prediction of the high-risk neonate. Am J Obstet Gynecol 1973; 117: 1–9
- Hobel C J, Youkeles L, Forsythe A. Prenatal and intrapartum high-risk screening. 11. Risk factors reassessed. Am J Obstet Gynecol 1979; 135: 1051–6
- Guidelines of Prenatal Care and Obstetrical Aid. The Danish National Board of Health, Copenhagen 1976
- Henry O R, Joyce N M, Herlihy P, Conway J, Denham B, Harris S. Perinatal morbidity — a computer based survey. J Ir Med Assoc 1978; 71: 204–7
- Morrison I, Carter L, McNamara S, Cheang M. A simplified intraparturn numerical scoring system. The prediction of high risk in labor. Am J Obstet Gynecol 1980; 138: 175–80
- Fedrick J, Adelstein P. Factors associated with low birth weight of infants delivered at term. Br J Obstet Gynaecol 1978; 85: 1–7
- Newcombe R, Chalmers I. Changes in distribution of gestational age and birth weight among firstborn infants of Cardiff residents. Br Med J 1977; 2: 295–6
- Koivisto M, Jouppila P, Kauppila A, Moilanen I, Ylikorkala O. Twin pregnancy. Neonatal morbidity and mortality. Acta Obstet Gynecol Scand 1975; 44(suppl)21–7
- Gimovsky M L, Paul R H. Singleton breech presentation in labor: experience in 1980. Am J Obstet Gynecol 1982; 143: 733–9
- De Crespigny L JC, Pepperell R J. Perinatal mortality and morbidity in breech presentation. Obstet Gynecol 1979; 53: 141–5
- Sokol R J, Rosen M G, Stojkov J, Chik L. Clinical application of high-risk scoring on an obstetric service. Am J Obstet Gynecol 1977; 128: 652–61
- Scurletis T D, Turnbull C D, Corkey D C. High risk indicators of fetal, neonatal, and postneonatal mortality. NC Med J 1973; 34: 183–92
- Naeye R L. Maternal age, obstetric complications, and the outcome of pregnancy. Obstet Gynecol 1983; 61: 210–6
- Barkan S E, Bracken M B. Delayed childbearing: no evidence for increased risk of low birth weight and preterm delivery. Am J Epidemiol 1987; 125: 101–9