Table 4 Frequency (Percent) of Parental Preference for Opt-In vs. Opt-Out and Immunization Registry (IRs) Support by Child's Vaccination Status
Vaccinated | Exempt for Any Antigens | Unadjusted Odds Ratio and 95% CIa,b | Number of Antigens Exempt For | ||||
|---|---|---|---|---|---|---|---|
1 | 2–5 | 6–9 | 10 | ||||
Prefer Opt-Inc | (32.7) | 133 (50.0) | 2.06 (1.55–2.71) | 11 (35.5) | 32 (44.4) | 35 (63.6) | 55 (50.9)* |
Prefer Opt-Outd | 342 (36.0) | 54 (20.3) | 0.45 (0.33–0.63) | 10 (32.2) | 19 (26.4) | 6 (10.9) | 19 (17.6)* |
Don't Know | 297 (31.3) | 79 (29.7) | 0.93 (0.69–1.25) | 10 (32.3) | 21 (29.2) | 14 (25.5) | 34 (31.5) |
Total | 950 (100.0%) | 266 (100.0%) | 31 (100.0%) | 72 (100.0%) | 55 (100.0%) | 108 (100.0%) | |
Support IR regardless of choice | 334 (34.7) | 25 (9.3) | 0.18 (0.12–0.28) | 9 (30.0) | 8 (11.3) | 3 (5.3) | 5 (4.5)* |
Support IR because of choice | 347 (36.0) | 97 (36.1) | 1.00 (0.76–1.33) | 13 (43.3) | 33 (46.5) | 22 (38.6) | 29 (26.1) |
Do not support IR | 72 (7.5) | 76 (28.3) | 4.87 (3.41–6.97) | 2 (6.7) | 16 (22.5) | 20 (35.1) | 38 (34.2)* |
Don't Know | 210 (21.8) | 71 (26.3) | 1.29 (0.95–1.77) | 6 (20.0) | 14 (19.7) | 12 (21.0) | 39 (35.2)* |
Total | 963 (100.0%) | 269 (100.0%) | 30 (100.0%) | 71 (100.0%) | 57 (100.0%) | 111 (100.0%) | |