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. Author manuscript; available in PMC: 2012 Jun 1.
Published in final edited form as: Am J Obstet Gynecol. 2011 Feb 23;204(6 Suppl 1):S141–S148. doi: 10.1016/j.ajog.2011.02.042

Figure 2.

Figure 2

The odds ratio and 95% confidence interval for the protection provided by influenza vaccination during pregnancy on laboratory-confirmed influenza hospitalizations among infants for unadjusted and adjusted models.

Model 1 includes study year, site, race and ethnicity, gender, age group and timing in influenza season.

Model 2 includes model 1, prematurity and high-risk medical conditions.

Model 3 includes model 1, smoke exposure, daycare, any breast feeding, siblings and insurance status.