Table 2:
MomsTalkShots Usability by Vaccine Attitude, Vaccine Intention, Vaccine Confidence, Perceptions of Disease Susceptibility & Severity, and Trust in Information Sources
| Selected Characteristics | Helpful, N (%) | Trustworthy, N (%) | Interesting, N (%) | Clear, N (%) |
|---|---|---|---|---|
| Vaccine Attitude Class⁺ | ||||
| Vaccine Enthusiasts | 164 (97) | 161 (95) | 171 (97) | 175 (99) |
| Vaccine Acceptors | 204 (96) | 205 (96) | 190 (96) | 195 (99) |
| Vaccine Skeptics | 80 (91) | 75 (85) | 89 (97) | 91 (99) |
| Vaccine Intention | ||||
| Maternal Vaccine Intention | ||||
| Both vaccines | 247 (98) | 249 (99) | 267 (99) | 268 (99) |
| Pertussis only | 43 (96) | 43 (96) | 40 (95) | 42 (100) |
| Flu only | 31 (100) | 30 (97) | 34 (97) | 33 (94) |
| No vaccines | 62 (85) | 55 (75) | 50 (87) | 58 (100) |
| Undecided | 65 (94) | 64 (93) | 59 (97) | 60 (98 |
| Infant Vaccine Intention | ||||
| All vaccines on time | 308 (98) | 310 (98) | 330 (98) | 334 (99) |
| All vaccines spread out | 69 (96) | 68 (84) | 48 (100) | 48 (100) |
| Some vaccines on time | 19 (95) | 17 (85) | 21 (88) | 24 (100) |
| Some vaccines spread out | 10 (77) | 7 (54) | 4 (67) | 6 (100) |
| No vaccines | 2 (22) | 3 (33) | 4 (67) | 6 (100) |
| Undecided | 40 (98) | 36 (88) | 42 (100) | 41 (98) |
| Self-Reported Vaccine Knowledge | ||||
| Has most of the important information to make a decision about maternal vaccines | 355 (96) | 353 (95) | 372 (97) | 382 (99) |
| Does not have most of the important information to make a decision about maternal vaccines | 93 (93) | 88 (89) | 77 (97) | 77 (97) |
| Has most of the important information to make a decision about infant vaccines | 365 (95) | 365 (95) | 390 (97) | 399 (99) |
| Does not have most of important information to make a decision about infant vaccines | 83 (95) | 76 (87) | 59 (98) | 60 (100) |
| Vaccine Confidence* | ||||
| Confident in safety of flu vaccine for pregnant mother | 358 (98) | 361 (98) | 362 (98) | 364 (99) |
| Not confident in safety of flu vaccine for pregnant mother | 90 (88) | 80 (78) | 87 (92) | 96 (100) |
| 1. I do not want to put the flu vaccine into my body when I am pregnant because I think it is unnatural. | 73 (85) | 64 (74) | 65 (92) | 72 (100) |
| 2. The flu vaccine is more likely to make me sick than protect me from getting the flu. | 58 (87) | 50 (75) | 50 (94) | 53 (100) |
| 3. I worry that the ingredients in the flu vaccine are not safe for me to have while I am pregnant. | 80 (86) | 70 (75) | 72 (92) | 79 (100) |
| Confident in safety of flu vaccine for unborn baby | 359 (98) | 360 (98) | 358 (98) | 361 (99) |
| Not confident in safety of flu vaccine for unborn baby | 89 (87) | 81 (79) | 91 (92) | 99 (99) |
| 4. The flu vaccine is more likely to make me sick than protect my unborn baby from getting the flu. | 49 (86) | 44 (77) | 46 (92) | 50 (100) |
| 5. I worry that the flu vaccine will cause birth defects. | 50 (85) | 47 (80) | 51 (94) | 54 (100) |
| 6. I worry that the ingredients in the flu vaccine given to me during pregnancy are not safe for my unborn baby. | 70 (85) | 63 (77) | 77 (92) | 84 (99) |
| Confident in safety of pertussis vaccine for pregnant mother | 377 (98) | 378 (98) | 379 (98) | 387 (99) |
| Not confident in safety of pertussis vaccine for pregnant mother | 71 (83) | 63 (73) | 70 (93) | 72 (96) |
| 7. I do not want to put the whooping cough vaccine into my body when I am pregnant because I think it is unnatural. | 56 (80) | 49 (70) | 59 (94) | 61 (97) |
| 8. The whooping cough vaccine is more likely to cause me to get sick than protect me from getting whooping cough. | 26 (74) | 24 (69) | 23 (88) | 26 (100) |
| 9. I worry that the ingredients in the whooping cough vaccine are not safe for me to have while I am pregnant. | 59 (81) | 52 (71) | 58 (95) | 59 (97) |
| Confident in safety of pertussis vaccine forunborn baby | 371 (98) | 373 (98) | 379 (98) | 387 (99) |
| Not confident in safety of pertussis vaccine for unborn baby | 77 (86) | 68 (76) | 70 (93) | 72 (96) |
| 10. The whooping cough vaccine is more likely to cause me to get sick than protect my unborn baby from getting whooping cough. | 30 (79) | 27 (71) | 23 (92) | 25 (100) |
| 11. I worry that the whooping cough vaccine will cause birth defects. | 47 (84) | 44 (79) | 47 (94) | 49 (98) |
| 12. I worry that the ingredients in the whooping cough vaccine given to me during pregnancy are not safe for my unborn baby. | 59 (83) | 52 (73) | 61 (94) | 64 (98) |
| Confident in safety of infant vaccines | 406 (98) | 405 (98) | 412 (98) | 416 (99) |
| Not confident in safety of infant vaccines | 42 (77) | 36 (65) | 37 (86) | 43 (100) |
| 13. It is better for babies to get fewer vaccines at the same time. | 34 (72) | 29 (62) | 29 (88) | 33 (100) |
| 14. Babies get more vaccines in their first two years of life than are good for them. | 34 (79) | 29 (67) | 24 (83) | 29 (100) |
| 15. Vaccines often cause serious side effects in babies. | 22 (71) | 16 (52) | 22 (81) | 27 (100) |
| Do not worry I could get the pertussis while pregnant | 274 (94) | 266 (91) | 24 (96) | 24 (96) |
| Worry my newborn could get pertussis | 257 (97) | 258 (98) | 21 (95) | 21 (95) |
| Do not worry my newborn could get pertussis | 159 (92) | 151 (88) | 14 (100) | 14 (100) |
| Disease Severity | ||||
| The flu is dangerous for pregnant women | 30 (97) | 30 (97) | 358 (97) | 367 (99) |
| The flu is not dangerous for pregnant women | 2 (67) | 2 (67) | 57 (97) | 59 (100) |
| Pertussis is dangerous for pregnant women | 310 (96) | 311 (96) | 23 (96) | 24 (100) |
| Pertussis is not dangerous for pregnant women | 106 (94) | 98 (87) | 12 (100) | 11 (92) |
| Pertussis is dangerous for babies | 380 (96) | 375 (94) | 31 (97) | 31 (97) |
| Pertussis is not dangerous for babies | 36 (92) | 34 (87) | 4 (100) | 4 (100) |
| Trust in Information Sources | ||||
| Do not trust information from my OB/midwife | 20 (74) | 15 (56) | 27 (90) | 30 (97) |
| Trust information from my pediatrician | 384 (96) | 385 (97) | 393 (98) | 398 (99) |
| Do not trust information from my pediatrician | 18 (75) | 13 (54) | 12 (80) | 15 (100) |
| Trust information from the CDC | 371 (98) | 372 (99) | 374 (98) | 377 (99) |
| Do not trust information from the CDC | 77 (83) | 69 (74) | 75 (90) | 83 (99) |
| Trust information from scientists & doctors at universities | 368 (97) | 368 (97) | 370 (98) | 377 (99) |
| Do not trust information from scientists & doctors at universities | 80 (88) | 73 (80) | 79 (94) | 83 (99) |
Bold: p-value for the Pearson chi-squared proportion test at significance level of (α) 5% is significant
⁺
These classes were created by latent class analysis of mothers’ knowledge, confidence, beliefs and trust in information sources. Vaccine Enthusiasts (strong positive attitudes towards vaccines with most intending to get maternal and infant vaccines); Vaccine Acceptors (mostly positive vaccine attitudes but without strong conviction, many intending to get maternal and infant vaccines); Vaccine Skeptics (more common negative vaccine attitudes and most do not intend to get maternal and infant vaccines)
*
Participants received the numbered specific concerns question if they were not confident in the stated maternal or childhood vaccine questions.
Participants who were not confident in the safety of vaccines had a median number of 3 specific concerns, with an inter-quartile range from 2 to 4. Participants had a range of 1 to 14 specific concerns, having 1 specific concern was most frequent (24%).