Table 1. Sample summary statistics by intended schedule choice (%).
| Immunization intentions | |||
|---|---|---|---|
| Total | ACIP schedule | Alternative schedule | |
| Vaccine concerns | |||
| No concerns | 68 | 81 | 3 |
| Overtax immune system | 10 | 5 | 38 |
| Autism | 7 | 6 | 15 |
| Mercury | 3 | 2 | 10 |
| Aluminum | 4 | 1 | 21 |
| Utility/necessity of vaccines | 6 | 3 | 23 |
| Number of concerns | |||
| 0 | 68 | 81 | 3 |
| 1 | 23 | 16 | 56 |
| 2+ | 9 | 3 | 41 |
| Alternative immunization among peersa | |||
| None | 57 | 62 | 31 |
| Some | 30 | 30 | 33 |
| Most/all | 13 | 8 | 36 |
| Sources of information about vaccination | |||
| Doctors | 55 | 64 | 10 |
| Friends and family | 19 | 15 | 36 |
| Parent professional background | 14 | 12 | 23 |
| Internet | 21 | 18 | 36 |
| Books | 16 | 10 | 46 |
| Total reported number of sources | |||
| 0 | 11 | 13 | 5 |
| 1 | 59 | 62 | 49 |
| 2 | 24 | 21 | 38 |
| 3 | 5 | 5 | 5 |
| 4 | 0 | 0 | 3 |
| N | 237 | 198 | 39 |
|
aParent estimate of percent of friends with kids choosing to follow an alternative immunization schedule. | |||