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Table 3 Frequency (Percent) of Parents Aware and Supportive of Immunization Registries (IRs) by Child's Vaccination Status

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

 

Vaccinated

Exempt for Any Antigens

Unadjusted Odds Ratio and 95% CIa,b

Number of Antigens Exempt For

    

1

2–5

6–9

10

Aware of IR

66 (7.8)

18 (7.6)

0.96 (0.56–1.66)

1 (3.8)

7 (10.4)

4 (8.5)

6 (6.1)

If Aware of IR, Child Enrolled in IR

9 (26.5)

8 (65.0)

5.14 (1.68–15.71)

0 (0.0)

3 (42.9)

2 (66.7)

4 (75.0)

Support IR

652 (71.7)

80 (32.6)

0.19 (0.14–0.26)

21 (75.0)

26 (40.6)

11 (22.0)

20 (20.6)*

Aware of Law Authorizing IR

66 (6.8)

18 (6.7)

0.98 (0.57–1.67)

1 (3.2)

7 (9.6)

4 (7.3)

6 (5.4)

Support Law Authorizing IR

511 (81.6)

49 (32.0)

0.11 (0.07–0.16)

11 (84.6)

20 (46.5)

6 (18.2)

12 (18.8)*

Support Law Requiring Providers to Report to IR

494 (78.3)

55 (35.3)

0.15 (0.10–0.22)

8 (72.7)

19 (44.2)

11 (28.9)

17 (26.6)*

  1. a: Odds Ratio compares parents of children exempt to any antigens to parents of vaccinated children. Interpretation of odd ratios: Parents of exempt children who were aware of registries had about 5 times as high odds of having their child enrolled in a registry compared with parents of vaccinated children who were aware of registries.
  2. b: Odds Ratio in Bold P-Value < 0.05
  3. * Trend test is statistically significant at <0.05