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Table 2 Frequency (Percent) of Parents who are Aware of and Support Immunization Registries (IRs) by State

From: Support for immunization registries among parents of vaccinated and unvaccinated school-aged children: a case control study

  Colorado Massachusetts Missouri Washington Total Fishers Exact Testa P Value
Aware of IR 19 (5.6) 14 (4.0) 28 (11.7) 34 (11.5) 95 (7.7) <0.01
If Aware of IR, Child Enrolled in IR 6 (31.3) 7 (50.0) 9 (32.1) 15 (45.0) 37 (38.2) 0.70
Support IR 232 (67.0) 212 (60.6) 151 (63.3) 189 (63.7) 784 (63.7) 0.42
Aware of Law Authorizing IR 17 (4.9) 12 (3.4) 24 (10.2) 30 (10.0) 83 (6.5) <0.01
Support Law Authorizing IR 244 (70.2) 241 (68.7) 174 (73.0) 230 (77.7) 889 (72.2) 0.21
Support Law Requiring Providers to Report to IR 241 (69.5) 237 (67.7) 165 (69.2) 218 (73.5) 861 (70.0) 0.64
  1. a = Fishers Exact Test is a chi square test that computes exact p values with no approximation.