Behaviors and perceptions regarding seasonal and H1N1 influenza vaccination during pregnancy.

We examined vaccination rates during pregnancy against both seasonal and pandemic H1N1 influenza and reasons for nonadherence to recommended guidelines during the 2009 through 2010 influenza season. Demographic and vaccination data were collected using a cross-sectional approach. Among 813 postpartum women, 520 (64%) reported receiving the seasonal influenza vaccination and 439 (54%) reported receiving the H1N1 influenza vaccination during pregnancy. Most received vaccinations at their obstetrician's office. Major reasons for not receiving vaccination were: not knowledgeable about the vaccine importance (25%), concerns for effects on fetal and maternal health (18% and 9%, respectively), and not knowledgeable about where to obtain vaccination (9%). Reported H1N1 influenza vaccination rates were significantly lower in blacks (37%) compared with non-Hispanic whites, Hispanics, and Asian/other (57%, 59%, and 58%, respectively; P < .0001). Subsequent campaigns for improving vaccination rates in pregnancy should focus on educating patients about vaccine importance and safety.