0
ARTICLE |

Facts and Artifacts About Anemia and Preterm Delivery-Reply

Mark A. Klebanoff, MD, MPH; Patricia H. Shiono, PhD
JAMA. 1990;263(9):1201-1202. doi:10.1001/jama.1990.03440090030019.
Text Size: A A A
Published online

In Reply.—  We appreciate the opportunity to respond to the thoughtful criticisms by Lieberman et al. These criticisms involve our interpretation of the literature, the age of the Collaborative Perinatal Project, potential nonindependence of the observations, and the possibility that women who have repeated hematocrits are different from the general population. We address each of these concerns.Our purpose in citing Nilsen et al1 was to provide supporting evidence for our contention that hematocrit rises during the third trimester of a normal pregnancy, not to address the relationship between anemia and preterm birth. These investigators demonstrated that in normal pregnancies to nonsmoking, nonanemic women, the hemoglobin level rose approximately 5 g/L between 25 to 30 weeks and term. Taylor and Lind,2 who studied unselected British women, noted that among those who received iron, the mean hematocrit increased from 33 percent at 26 to 30 weeks to 36 percent at

Topics

Sign In to Access Full Content

Don't have Access?

Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more

Subscribe for full-text access to content from 1998 forward and a host of useful features

Activate your current subscription (AMA members and current subscribers)

Purchase Online Access to this article for 24 hours

Figures

Tables

References

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Multimedia

Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

Related Content

Customize your page view by dragging & repositioning the boxes below.

Jobs
brightcove.createExperiences();