Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-23T20:33:39.373Z Has data issue: false hasContentIssue false

Influence of maternal age, parity and social class on perinatal mortality in Scotland: 1960–82

Published online by Cambridge University Press:  31 July 2008

J. F. Forbes
Affiliation:
Social Paediatric and Obstetric Research Unit, University of Glasgow
R. M. Pickering
Affiliation:
Social Paediatric and Obstetric Research Unit, University of Glasgow

Summary

This paper examines secular changes in the influence of maternal age, parity and social class on perinatal mortality in Scotland. Despite changes in reproductive behaviour, improved access to maternity services and more effective perinatal care, the influence of maternal age and social class on perinatal mortality remained unchanged between 1960 and 1982. Although there were no significant changes in the traditional J-shaped association between parity and stillbirths, cross-sectional analysis shows that in the early 1980s the risk of both neonatal and perinatal deaths decreased as parity increased: this finding is consistent with the pattern of risks observed in longitudinal studies and retrospective surveys of reproductive histories. The stability of age, parity and social class effects thus suggests that little if any of the overall decrease in Scottish perinatal mortality can be attributed to a significant narrowing of relative risks in the obstetric population.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1985

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Adelstein, A.M., McDonald, I.M. & Weatherall, J.A.C. (1980) Perinatal and Infant Mortality, Social and Biological Factors, 1975–77. HM Stationery Office, London.Google Scholar
Bakketeig, L.S. & Hoffman, H.J. (1979) Perinatal mortality by birth order within cohorts based on sibship size. Br. med. J. 2, 693.CrossRefGoogle ScholarPubMed
Bakketeig, L.S. & Hoffman, H.J. (1980) Pregnancy order and reproductive loss. Br. med. J. 1, 716.CrossRefGoogle Scholar
Billewicz, W.Z. (1973) Some implications of self-selection for pregnancy. Br. J. prev. soc. Med. 27, 49.Google ScholarPubMed
Cox, D.R. (1970) Analysis of Binary Data. Methuen, London.Google Scholar
Daly, C., Heady, J.A. & Morris, J.N. (1955) Social and biological factors in infant mortality. III. The effect of mother's age and parity on social class differences in infant mortality. Lancet, 1, 445.CrossRefGoogle Scholar
Feldstein, M.S. (1966) Binary variable multiple regression method of analysing factors affecting perinatal mortality and other outcomes of pregnancy. J. Roy. Stat. Soc. (A) 129, 61.CrossRefGoogle Scholar
Feldstein, M.S. & Butler, N.R. (1965) Analysis of factors influencing perinatal mortality: a multivariate statistical approach. Br. J. prev. soc. Med. 19, 128.Google Scholar
Forbes, J.F., Boddy, F.A., Pickering, R.M. & Wyllie, M.M. (1982) Perinatal mortality in Scotland: 1970–79. J. epidemiol. comm. Hlth, 36, 282.CrossRefGoogle Scholar
Gibson, J.R. & McKeown, T. (1952) Observations on all births (23,970) in Birmingham 1947. VII. Effect of changing family size on infant mortality. Br. J. prev. soc. Med. 6, 183.Google Scholar
Golding, J. (1979) Perinatal epidemiology in wonderland. Br. med. J. 2, 1436.CrossRefGoogle ScholarPubMed
Golding, J., Butler, N.R. & Newcombe, R.G. (1983) Analysis of completed reproductive histories: a cautionary tale. J. epidemiol. comm. Hlth, 37, 78.CrossRefGoogle ScholarPubMed
Heady, J.A., Daly, C. & Morris, J.N. (1955) Social and biological factors in infant mortality. II. Variation of mortality with mother's age and parity. Lancet, 1, 395.CrossRefGoogle Scholar
Heady, J.A. & Heasman, M.A. (1959) Social and Biological Factors in Infant Mortality. Studies on Medical and Population Subjects No. 15. HM Stationery Office, London.CrossRefGoogle ScholarPubMed
Illsley, R. (1955) Social class selection and class differences in relation to stillbirths. Br. med. J. 2, 520.CrossRefGoogle ScholarPubMed
Illsley, R. (1980) Professional or Public Health? Sociology in Health and Medicine. Nuffield Provincial Hospitals Trust, London.Google Scholar
James, W.H. (1963) Notes towards an epidemiology of spontaneous abortion. Am. J. hum. Genet. 15, 223.Google ScholarPubMed
James, W.H. (1968) Stillbirth and birth order. Ann. hum. Genet. 32, 151.CrossRefGoogle ScholarPubMed
Janerich, D.T. (1972) Anencephaly and maternal age. Am. J. epidemiol. 95, 319.CrossRefGoogle ScholarPubMed
Janerich, D.T. (1973) Maternal age and spina bifida: longitudinal versus cross sectional analysis. Am. J. epidemiol. 96, 389.CrossRefGoogle Scholar
Leridon, H. (1976) Facts and artifacts in the study of intra-uterine mortality: a reconsideration from pregnancy histories. Popul. Stud. 30, 319.CrossRefGoogle Scholar
McKinley, P. (1952) Social class variations of parity and age of mother and their influence on stillbirth rates in Scotland Hlth Bull. 10, 56.Google Scholar
Office of Population Censuses and Surveys (1960, 1980) Classification of Occupation. HM Stationery Office, London.Google Scholar
Office of Population Censuses and Surveys (1982) Infant and Perinatal Mortality 1979: Social Class Bridge-coding. HM Stationery Office, LondonGoogle Scholar
Registrar General Scotland (1961, 1972) Annual Report of the Registrar-General for Scotland 1960, 1971. HM Stationery Office, Edinburgh.Google Scholar
Registrar General Scotland (1982, 1983) Annual Report 1981, 1982. HM Stationery Office, Edinburgh.Google Scholar
Resseguie, L.J. (1976) Comparison of longitudinal and cross-sectional analysis: maternal age and stillbirth ratio. Am. J. epidemiol. 103, 551.CrossRefGoogle ScholarPubMed
Resseguie, L.J. (1977) The artifactual nature of effects of maternal age on the risk of a stillbirth. J. biosoc. Sci. 9, 191.CrossRefGoogle ScholarPubMed
Robinson, H.L. (1947) Rates of stillbirth in Canada. Can.J.publ. Hlth, 38, 168.Google ScholarPubMed
Roman, E., Doyle, P., Beral, V., Alberman, E. & Pharoah, P. (1978) Fetal loss, gravidity, and pregnancy order. Early hum. Dev. 2, 131.CrossRefGoogle ScholarPubMed
Selvin, S. & Garfinkel, J. (1976) Paternal age, maternal age and birth order and the risk of a fetal loss. Hum. Biol. 48, 223.Google ScholarPubMed
Spicer, C.C. & Lipworth, L. (1966) Regional and Social Factors in Infant Mortality. Studies on Medical and Population Subjects No. 19. HM Stationery Office, London.Google Scholar
Vandenberg, S.C. (1972) Assortive mating, or who marries whom? Behav. Genet. 2, 127.CrossRefGoogle Scholar
Yerushalmy, J. (1938) Neonatal mortality by order of birth and age of parents. Am. J. Hyg. 28, 244.Google ScholarPubMed
Yudkin, P.L. & Baras, M.A. (1983) A new approach to assessing the effect of birth order on the outcome of pregnancy. J. biosoc. Sci. 15, 307.CrossRefGoogle ScholarPubMed