TABLE 1

Demographic Characteristics of Maternal Subjects by Reported Maternal Immunization Status

Maternal Influenza Vaccine StatusReported Vaccine, N = 23 383No Reported Vaccine, N = 222 003
Insurance type, %Private7469
Government*2428
Uninsured*23
Residence location, %Rural/frontier*910
Urban9190
Hospital region, %Urban central4135
Urban north3623
Urban south*1731
Southwest*611
  • * Proportion differed by maternal immunization status at Bonferroni-adjusted significance levels (all Ps < .001).