Skip to main content
Public Health Reports logoLink to Public Health Reports
. 1992 Nov-Dec;107(6):701–706.

Seasonal variation in adolescent conceptions, induced abortions, and late initiation of prenatal care.

D J Petersen 1, G R Alexander 1
PMCID: PMC1403724  PMID: 1454982

Abstract

The monthly distribution of conceptions among adolescents and the proportion of adolescent pregnancies that are voluntarily terminated by induced abortion by month of conception are the objects of this study. Additionally, seasonal variations in the timing of initiation of prenatal care services by adolescents are investigated. Vital records files of single live births, fetal deaths, and induced terminations of pregnancy to residents in the State of South Carolina, 1979-86, were aggregated to estimate conceptions. There was a significant difference between adolescents and adults in the monthly distribution of conceptions. The peak month of adolescent conceptions coincided with the end of the school year. Pregnancies of adolescents occurring at this time further demonstrated later access of prenatal care services than conceptions occurring at other times of the year, most notably during the school term. These findings suggest that there is considerable opportunity for improving the availability of reproductive health care services for adolescents. The results specifically suggest the potential benefit of increasing adolescent pregnancy prevention efforts prior to high-risk events and increasing the availability of and access to health care and counseling services to adolescents during the school recess months of the summer.

Full text

PDF

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Bernard R. P., Bhatt R. V., Potts D. M., Rao A. P. Seasonality of birth in India. J Biosoc Sci. 1978 Oct;10(4):409–421. doi: 10.1017/s0021932000011901. [DOI] [PubMed] [Google Scholar]
  2. Bradbury T. N., Miller G. A. Season of birth in schizophrenia: a review of evidence, methodology, and etiology. Psychol Bull. 1985 Nov;98(3):569–594. [PubMed] [Google Scholar]
  3. Buekens P., Delvoye P., Wollast E., Robyn C. Epidemiology of pregnancies with unknown last menstrual period. J Epidemiol Community Health. 1984 Mar;38(1):79–80. doi: 10.1136/jech.38.1.79. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. CHANG K. S., CHAN S. T., LOW W. D., NG C. K. CLIMATE AND CONCEPTION RATES IN HONG KONG. Hum Biol. 1963 Sep;35:366–376. [PubMed] [Google Scholar]
  5. COWGILL U. M. RECENT VARIATIONS IN THE SEASON OF BIRTH IN PUERTO RICO. Proc Natl Acad Sci U S A. 1964 Nov;52:1149–1151. doi: 10.1073/pnas.52.5.1149. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Cooperstock M., Wolfe R. A. Seasonality of preterm birth in the Collaborative Perinatal Project: demographic factors. Am J Epidemiol. 1986 Aug;124(2):234–241. doi: 10.1093/oxfordjournals.aje.a114381. [DOI] [PubMed] [Google Scholar]
  7. EDWARDS J. H. Seasonal incidence of congenital disease in Birmingham. Ann Hum Genet. 1961 May;25:89–93. doi: 10.1111/j.1469-1809.1961.tb01502.x. [DOI] [PubMed] [Google Scholar]
  8. Erhardt C. L., Nelson F. G., Pakter J. Seasonal patterns of conception in New York City. Am J Public Health. 1971 Nov;61(11):2246–2258. doi: 10.2105/ajph.61.11.2246. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. HEWITT D. A study of temporal variations in the risk of fetal malformation and death. Am J Public Health Nations Health. 1962 Oct;52:1676–1688. doi: 10.2105/ajph.52.10.1676. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Hardy J. B., Welcher D. W., Stanley J., Dallas J. R. Long-range outcome of adolescent pregnancy. Clin Obstet Gynecol. 1978 Dec;21(4):1215–1232. doi: 10.1097/00003081-197821040-00023. [DOI] [PubMed] [Google Scholar]
  11. James W. H. Social class and season of birth. J Biosoc Sci. 1971 Jul;3(3):309–320. doi: 10.1017/s0021932000008087. [DOI] [PubMed] [Google Scholar]
  12. Johnson J. T., Ann T. B., Palan V. T. Seasonality of births for West Malaysia's two main racial groups. Hum Biol. 1975 Sep;47(3):295–307. [PubMed] [Google Scholar]
  13. Kevan S. M. Season of life--season of death. Soc Sci Med Med Geogr. 1979 Dec;13D(4):227–232. doi: 10.1016/0160-8002(79)90042-x. [DOI] [PubMed] [Google Scholar]
  14. Mathers C. D., Harris R. S. Seasonal distribution of births in Australia. Int J Epidemiol. 1983 Sep;12(3):326–331. doi: 10.1093/ije/12.3.326. [DOI] [PubMed] [Google Scholar]
  15. Mosher S. W. Birth seasonality among peasant cultivators: the interrelationship of workload, diet, and fertility. Hum Ecol. 1979;7(2):151–181. doi: 10.1007/BF00917519. [DOI] [PubMed] [Google Scholar]
  16. Ogum G. E., Okorafor A. E. Seasonality of births in South-Eastern Nigeria. J Biosoc Sci. 1979 Apr;11(2):209–217. doi: 10.1017/s0021932000012268. [DOI] [PubMed] [Google Scholar]
  17. PASAMANICK B., DINITZ S., KNOBLOCH H. Geographic and seasonal variations in births. Public Health Rep. 1959 Apr;74(4):285–288. [PMC free article] [PubMed] [Google Scholar]
  18. PASAMANICK B., DINITZ S., KNOBLOCH H. Socio-economic and seasonal variations in birth rates. Milbank Mem Fund Q. 1960 Jul;38:248–254. [PubMed] [Google Scholar]
  19. PASAMANICK B., KNOBLOCH H. Seasonal variation in complications of pregnancy. Obstet Gynecol. 1958 Jul;12(1):110–112. doi: 10.1097/00006250-195807000-00011. [DOI] [PubMed] [Google Scholar]
  20. Petersen D. J., Alexander G. R., Powell-Griner E., Tompkins M. E. Variations in the reporting of gestational age at induced termination of pregnancy. Am J Public Health. 1989 May;79(5):603–606. doi: 10.2105/ajph.79.5.603. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Seiver D. A. Trend and variation in the seasonality of U.S. fertility, 1947-1976. Demography. 1985 Feb;22(1):89–100. [PubMed] [Google Scholar]
  22. Shimura M., Richter J., Miura T. Geographical and secular changes in the seasonal distribution of births. Soc Sci Med Med Geogr. 1981 Feb;15D(1):103–109. doi: 10.1016/0160-8002(81)90020-4. [DOI] [PubMed] [Google Scholar]
  23. Stoeckel J., Choudhury A. K. Seasonal variation in births in rural East Pakistan. J Biosoc Sci. 1972 Jan;4(1):107–116. doi: 10.1017/s0021932000008373. [DOI] [PubMed] [Google Scholar]
  24. Surbey M. K., de Catanzaro D., Smith M. S. Seasonality of conception in Hutterite colonies of Europe (1758-1881) and North America (1858-1964). J Biosoc Sci. 1986 Jul;18(3):337–345. [PubMed] [Google Scholar]
  25. Treloar A. E., Behn B. G., Cowan D. W. Analysis of gestational interval. Am J Obstet Gynecol. 1967 Sep 1;99(1):34–45. doi: 10.1016/s0002-9378(16)34488-x. [DOI] [PubMed] [Google Scholar]
  26. Ventura S. J., Hendershot G. E. Infant health consequences of childbearing by teenagers and older mothers. Public Health Rep. 1984 Mar-Apr;99(2):138–146. [PMC free article] [PubMed] [Google Scholar]
  27. Ventura S. J., Taffel S. M., Mosher W. D. Estimates of pregnancies and pregnancy rates for the United States, 1976-85. Am J Public Health. 1988 May;78(5):506–511. doi: 10.2105/ajph.78.5.506. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. Warren C. W., Gold J., Tyler C. W., Jr, Smith J. C., Paris A. L. Seasonal variation in spontaneous abortions. Am J Public Health. 1980 Dec;70(12):1297–1299. doi: 10.2105/ajph.70.12.1297. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Warren C. W., Gwinn M. L., Rubin G. L. Seasonal variation in conception and various pregnancy outcomes. Soc Biol. 1986 Spring-Summer;33(1-2):116–126. doi: 10.1080/19485565.1986.9988628. [DOI] [PubMed] [Google Scholar]

Articles from Public Health Reports are provided here courtesy of SAGE Publications

RESOURCES