Table 4.

Estimated Effect of CHPlus on Immunization Delivery: Proportion of Children (n = 2055) Vaccinated at a Health Department Clinic, and Immunization Rates for Infants (n = 275) and for Children (n = 574)

Immunization MeasureAll Regions CombinedNew York CityNew York City Urban CountiesUpstate UrbanUpstate Rural
Without CHPlus*CHPlus EffectWithout CHPlus*CHPlus EffectWithout CHPlus*CHPlus EffectWithout CHPlus*CHPlus EffectWithout CHPlus*CHPlus Effect
Vaccinated at a health  department
(0–11.99 y; n = 2055)
.130−.083.099−.086.083−.065.128−.092.185−.084
Up-to-date for immunizations
 Infants (0–.99 y).525+.085.500+.157.529+.059.553−.023.518+.146
 Children (1–3.99 y).655+.006.737+.000.631+.049.694−.012.558−.012
  • * Adjusted for region and CHPlus plan type (all children); age and pre-CHPlus insurance coverage (1–11.99 years). Estimated proportions vaccinated at health department clinics are unadjusted;P values are from McNemar's test.

  • Difference between the 1-year period before CHPlus enrollment and the 1-year period after CHPlus enrollment.

  • P < .001.