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Vaccinations given during pregnancy, 2002-2009: a descriptive study.

Allison L Naleway1, Samantha Kurosky1, Michelle L Henninger1

  • 1Center for Health Research (Naleway, Kurosky, Henninger, Gold, Irving), Kaiser Permanente Northwest, Portland, Oregon.

American Journal of Preventive Medicine
|January 21, 2014
PubMed
Summary
This summary is machine-generated.

Vaccination rates during pregnancy were analyzed, finding trivalent inactivated influenza vaccine most common. Contraindicated vaccines were rarely given, but early pregnancy administration suggests potential unawareness, highlighting a need for improved provider education.

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Area of Science:

  • Obstetrics and Gynecology
  • Vaccinology
  • Public Health

Background:

  • Limited data exists on non-influenza vaccination rates during pregnancy.
  • Understanding vaccination patterns is crucial for maternal and infant health.
  • The Vaccine Safety Datalink (VSD) provides a valuable resource for studying vaccination coverage.

Purpose of the Study:

  • To determine vaccination rates among pregnant individuals in the VSD.
  • To specifically examine the administration of vaccines contraindicated during pregnancy.
  • To identify trends in vaccination timing and demographics.

Main Methods:

  • Utilized VSD data for pregnancies ending between 2002 and 2009.
  • Calculated vaccination rates per 1000 pregnancies by vaccine type and recommendation status.
  • Analyzed rates based on pregnancy year, maternal age, and trimester.

Main Results:

  • Trivalent inactivated influenza vaccine (TIV) was the most frequent (174.1/1000 pregnancies), primarily in the 2nd and 3rd trimesters.
  • Vaccines in the 'consider if indicated' category included tetanus-diphtheria (6.1/1000) and hepatitis B (3.7/1000).
  • Contraindicated vaccines (MMR, varicella, LAIV) were infrequent (<1.2/1000), often administered in early pregnancy.

Conclusions:

  • TIV is the most common vaccine administered during pregnancy.
  • Non-influenza vaccines and contraindicated vaccines were more common in early pregnancy, suggesting potential lack of awareness of pregnancy.
  • Improved provider education and clearer guidelines are needed to minimize the administration of contraindicated vaccines later in pregnancy.