Last edited by JoJoshakar
Wednesday, July 29, 2020 | History

2 edition of Occupational radiation exposure and risk of spontaneous abortion among medical radiation technologists in Canada. found in the catalog.

Occupational radiation exposure and risk of spontaneous abortion among medical radiation technologists in Canada.

Monica Kim Bienefeld

Occupational radiation exposure and risk of spontaneous abortion among medical radiation technologists in Canada.

by Monica Kim Bienefeld

  • 160 Want to read
  • 13 Currently reading

Published .
Written in English


About the Edition

Purpose of study. To assess whether there is an association between occupational exposure to low levels of ionizing radiation and risk of pregnancy ending in spontaneous abortion, and to estimate the magnitude of such an association. Methods. A retrospective cohort design was used to address the study question in an occupationally defined group. Members of the Canadian Association of Medical Radiation Technologists were mailed a questionnaire to ascertain pregnancy history. Respondents" occupational radiation dose records were obtained from the National Dose Registry by record linkage, and used to estimate pre-pregnancy radiation exposures for each individual pregnancy. A second mailed questionnaire was used to obtain more detailed information about exposures prior to and during a subset of the reported pregnancies. Risk of spontaneous abortion was determined for different levels of pre-pregnancy radiation exposure, and comparisons were made with an internal unexposed referent group. Results. Pregnancies with documented pre-pregnancy radiation exposure were observed to be at a small but significantly increased risk of ending in spontaneous abortion, as compared to those with no documented exposure (OR = 1.21; 95% CI 1.05--1.40). Risk was greatest in pregnancies with the highest cumulative pre-pregnancy dose. Less evidence of an association was observed among the more recent pregnancies and exposures. Conclusions . The results of this study indicate that occupational pre-pregnancy radiation exposures may increase the risk of spontaneous abortion, findings that are reasonably consistent with the few published reports of previous investigations of this relationship. However, in light of methodological limitations, the exact nature of the relationship between radiation exposure and risk of spontaneous abortion, and the precise levels of exposure associated with increased risk remain uncertain. Therefore, attempts to apply the findings of this study to modify regulatory limits would be premature, although efforts to include this outcome in the setting of such limits are warranted. Overall, these results reinforce the appropriateness of applying radiation protection principles that ensure that exposures to ionizing radiation are kept as low as possible for all workers at all times, regardless of existing evidence about specific health effects.

The Physical Object
Pagination243 leaves.
Number of Pages243
ID Numbers
Open LibraryOL19475713M
ISBN 100494028807


Share this book
You might also like
Christian tradition versus pagan mythology.

Christian tradition versus pagan mythology.

defence of the prisoners in York Castle for not paying titles, against the charges of George Markham, Vicar of Carlton, in Yorkshire

defence of the prisoners in York Castle for not paying titles, against the charges of George Markham, Vicar of Carlton, in Yorkshire

The inside-outside book of Washington, D.C.

The inside-outside book of Washington, D.C.

Jim Curious

Jim Curious

Guidelines for better speech in the schools

Guidelines for better speech in the schools

Drama criticism [by] Arthur Coleman and Gary R. Tyler.

Drama criticism [by] Arthur Coleman and Gary R. Tyler.

Resolves of the General Assembly of the state of Massachusetts-Bay

Resolves of the General Assembly of the state of Massachusetts-Bay

Electrolyte Data Collection 4c

Electrolyte Data Collection 4c

South Pacific

South Pacific

Profiles of Ministry

Profiles of Ministry

South West Coast Path

South West Coast Path

Londons housing needs up to 1974

Londons housing needs up to 1974

Occupational radiation exposure and risk of spontaneous abortion among medical radiation technologists in Canada by Monica Kim Bienefeld Download PDF EPUB FB2