2009 pandemic influenza a vaccination of pregnant women--King County, Washington State, 2009-2010.
OBJECTIVE
Our objectives were to estimate 2009 pandemic influenza A (pH1N1) vaccination coverage among pregnant women and identify associated factors.


METHODS
We distributed a multimodal survey to 5341 women who gave birth between November 1, 2009, and January 31, 2010, identified by hospitals in King County, Washington State, with maternity services (n = 11).


RESULTS
Of 4205 respondents, 3233 (76.9%) reported that they had received pH1N1 vaccine during pregnancy or within 2 weeks after delivery. Women whose prenatal care provider recommended vaccine had a higher vaccination prevalence than women whose provider did not (81.5% vs 29.6%; adjusted prevalence ratio = 2.1; 95% confidence interval = 1.72, 2.58). Vaccination prevalence was lower among women who had received prenatal care from a midwife only compared with women who had received care from other providers (62.9% vs 78.8%; adjusted prevalence ratio = 0.89; 95% confidence interval = 0.83, 0.96).


CONCLUSIONS
Among pregnant women in King County, pH1N1 vaccination coverage was high. To improve coverage during nonpandemic seasons, influenza vaccine should be recommended routinely by prenatal care providers and vaccination provided where prenatal care is received. Barriers to midwives providing vaccination recommendations to patients should be explored.
Centers for Disease Control and Prevention, assigned to Public Health-Seattle and King County, Seattle, WA, USA. meagan.kay@kingcounty.gov
Meagan K
MK
Kay
Kathryn G
KG
Koelemay
Tao Sheng
TS
Kwan-Gett
Betsy L
BL
Cadwell
Jeffrey S
JS
Duchin
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000453:epidemiology / Q000517:prevention & control* / Q000821:virology; D008875:Middle Aged; D058873:Pandemics; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology / Q000517:prevention & control* / Q000821:virology; D037841:Pregnant People; D015995:Prevalence; D012044:Regression Analysis; D011795:Surveys and Questionnaires; D014861:Washington / Q000453:epidemiology
D007252:Influenza Vaccines