Abstract
In Canada between 1958 and 1977 the neonatal mortality dropped by more than 50%. the decline was most prominent from 1963 and was almost entirely due to an improvement in neonatal birthweight-specific mortality, which suggests an improvement in perinatal medical care. The timing and pattern of the decline are similar to those reported for the United States. There was a transient increase in the incidence of low and very low birthweight in both countries in the late 1960s. The cause of this increase remains unexplained.
Full text
PDF



Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Battaglia F. C., Frazier T. M., Hellegers A. E. Birth weight, gestational age, and pregnancy out- come, with special reference to high birth weight-low gestational age infant. Pediatrics. 1966 Mar;37(3):417–422. [PubMed] [Google Scholar]
- Bergner L., Susser M. W. Low birth weight and prenatal nutrition: an interpretative review. Pediatrics. 1970 Dec;46(6):946–966. [PubMed] [Google Scholar]
- ERHARDT C. L., JOSHI G. B., NELSON F. G., KROLL B. H., WEINER L. INFLUENCE OF WEIGHT AND GESTATION ON PERINATAL AND NEONATAL MORTALITY BY ETHNIC GROUP. Am J Public Health Nations Health. 1964 Nov;54:1841–1855. doi: 10.2105/ajph.54.11.1841. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Elwood J. H., MacKenzie G., Cran G. W. Observations on single births to women resident in Belfast 1962-1966. Part I. Factors associated with perinatal mortality. J Chronic Dis. 1974 Dec;27(11-12):517–535. doi: 10.1016/0021-9681(74)90027-7. [DOI] [PubMed] [Google Scholar]
- Kitchen W. H., Ryan M. M., Rickards A., Gaudry E., Brenton A. M., Billson F. A., Fortune D. W., Keir E. H., Lundahl-Hegedus E. E. A longitudinal study of very low-birthweight infants. I: study design and mortality rates. Dev Med Child Neurol. 1978 Oct;20(5):605–618. doi: 10.1111/j.1469-8749.1978.tb15279.x. [DOI] [PubMed] [Google Scholar]
- Lee K. S., Paneth N., Gartner L. M., Pearlman M. A., Gruss L. Neonatal mortality: an analysis of the recent improvement in the United States. Am J Public Health. 1980 Jan;70(1):15–21. doi: 10.2105/ajph.70.1.15. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lee K., Tseng P. I., Eidelman A. I., Kandall S. R., Gartner L. M. Determinants of the neonatal mortality. Am J Dis Child. 1976 Aug;130(8):842–845. doi: 10.1001/archpedi.1976.02120090052009. [DOI] [PubMed] [Google Scholar]
- Lubchenco L. O., Searls D. T., Brazie J. V. Neonatal mortality rate: relationship to birth weight and gestational age. J Pediatr. 1972 Oct;81(4):814–822. doi: 10.1016/s0022-3476(72)80114-8. [DOI] [PubMed] [Google Scholar]
- North A. F., Jr, MacDonald H. M. Why are neonatal mortality rates lower in small black infants than in white infants in similar birth weight? J Pediatr. 1977 May;90(5):809–810. doi: 10.1016/s0022-3476(77)81258-4. [DOI] [PubMed] [Google Scholar]
- Schlesinger E. R. Neonatal intensive care: planning for services and outcomes following care. J Pediatr. 1973 Jun;82(6):916–920. doi: 10.1016/s0022-3476(73)80417-2. [DOI] [PubMed] [Google Scholar]
- Shah F. K., Abbey H. Effects of some factors on neonatal and postneonatal mortality. Analysis by a binary variable multiple regression method. Milbank Mem Fund Q. 1971 Jan;49(1):33–57. [PubMed] [Google Scholar]
- Stanley F. J., Alberman E. V. Infants of very low birthweight. I: Perinatal factors affecting survival. Dev Med Child Neurol. 1978 Jun;20(3):300–312. doi: 10.1111/j.1469-8749.1978.tb15220.x. [DOI] [PubMed] [Google Scholar]
- Yerushalmy J. The classification of newborn infants by birth weight and gestational age. J Pediatr. 1967 Aug;71(2):164–172. doi: 10.1016/s0022-3476(67)80067-2. [DOI] [PubMed] [Google Scholar]
- Zachman R. D., Graven S. N. A neonatal intensive care unit: a four-year summary. Am J Dis Child. 1974 Aug;128(2):165–170. doi: 10.1001/archpedi.1974.02110270039008. [DOI] [PubMed] [Google Scholar]
