Table 2.
Frequency of agreement with maternal vaccine statements, and unadjusted odds ratios for maternal vaccine intentions.
| Agree or Strongly Agree, N (%) | Influenza, OR (95% CI)a | Tdap, OR (95% CI)a | |
|---|---|---|---|
| Total (N = 2210) | |||
| Number of Vaccine Safety Concerns Identifiedb | |||
| Influenza vaccine concerns (0–6) | |||
| 0 (reference) | 1,630 (74) | 1 | |
| 1–2 | 134 (6) | 0.08 (0.05–0.12) | |
| 3–4 | 197 (9) | 0.02 (0.02–0.04) | |
| 5–6 | 235 (11) | 0.01 (0.00–0.02) | |
| Tdap vaccine concerns (0–6) | |||
| 0 (reference) | 1,739 (79) | 1 | |
| 1–2 | 106 (5) | 0.08 (0.05–0.13) | |
| 3–4 | 206 (9) | 0.04 (0.03–0.06) | |
| 5–6 | 145 (7) | 0.02 (0.01–0.04) | |
| Confidence in Vaccine Safety Statements | |||
| I am confident that getting the flu vaccine during my pregnancy is safe for me. | 1662 (76) | 37.50 (27.43–51.26) | |
| I am confident that getting the flu vaccine during my pregnancy is safe for my unborn baby. | 1676 (76) | 26.49 (19.86–35.34) | |
| I am confident that getting the whooping cough vaccine during my pregnancy is safe for me. | 1754 (80) | 28.80 (20.95–39.59) | |
| I am confident that getting the whooping cough vaccine during my pregnancy is safe for my unborn baby. | 1771 (81) | 18.07 (13.57–24.06) | |
| Risk Perception Statements | |||
| I worry that I could get the flu while I am pregnant. | 998 (61) | 4.76 (3.84–5.91) | |
| The flu is dangerous for pregnant women. | 1401 (85) | 2.53 (1.92–3.33) | |
| The flu is more dangerous for pregnant women than for women who are not pregnant. | 1296 (79) | 2.17 (1.70–2.75) | |
| I worry that I could get whooping cough while I am pregnant. | 649 (39) | 3.57 (2.83–4.50) | |
| I worry that I could give whooping cough to my baby after birth. | 935 (57) | 6.20 (4.96–7.76) | |
| Whooping cough is dangerous for pregnant women. | 1256 (76) | 2.61 (2.07–3.29) | |
| Confidence in Vaccine Efficacy Statements | |||
| Getting the flu vaccine will reduce my risk of getting the flu during my pregnancy. | 1136 (69) | 18.74 (14.39–24.41) | |
| Getting the flu vaccine while I am pregnant will reduce my unborn baby’s risk of getting the flu. | 774 (47) | 6.12 (4.84–7.72) | |
| Whooping cough vaccine will reduce my chances of getting whooping cough. | 1238 (75) | 10.92 (8.40–14.19) | |
| Whooping cough vaccine will reduce the chance of me giving whooping cough to my unborn baby. | 1146 (70) | 7.55 (5.98–9.54) | |
| Getting the whooping cough vaccine while I am pregnant will reduce my unborn baby’s risk of getting whooping cough. | 1019 (62) | 6.40 (5.12–8.00) | |
| Self-Efficacy Statement | |||
| It is in my control whether or not I get vaccines during my pregnancy. | 1601 (98) | 1.54 (0.83–2.87) | 1.67 (0.90–3.10) |
| Social Norms Statements | |||
| The majority of my friends and family would get the vaccines that are recommended during pregnancy. | 1608 (73) | 7.99 (6.45–9.90) | 6.10 (4.97–7.50) |
| The majority of my friends and family would encourage me to get the vaccines that are recommended during pregnancy. | 1579 (72) | 9.92 (7.99–12.32) | 7.26 (5.91–8.93) |
| Perceived Knowledge Statements | |||
| I have most of the important information I need to make a decision about vaccines given during pregnancy. | 1806 (82) | 4.13 (3.27–5.21) | 3.88 (3.09–4.88) |
| I know enough about the safety of the flu vaccine to make a decision about getting the vaccine for myself while pregnant. | 1343 (82) | 4.60 (3.53–6.01) | |
| I know enough about the safety of the whooping cough vaccine to make a decision about getting the vaccine for myself while pregnant. | 1173 (71) | 4.50 (3.59–5.65) | |
| Trust in Vaccine Information Source Statements | |||
| I trust the information provided by my obstetrician or midwife about vaccines during pregnancy. | 2032 (93) | 8.62 (5.74–12.96) | 6.70 (4.61–9.72) |
| I trust the information provided by my baby’s doctor about vaccines during pregnancy.c | 1871 (92) | 8.28 (5.52–12.43) | 6.82 (4.68–9.93) |
| I trust the information provided by naturopathic and/or chiropractic doctors about vaccines during pregnancy.c | 917 (64) | 0.65 (0.52–0.81) | 0.72 (0.57–0.90) |
| I trust the information provided by federal agencies such as the Centers for Disease Control and Prevention (CDC) about vaccines during pregnancy. | 1768 (81) | 6.38 (5.04–8.07) | 5.62 (4.47–7.07) |
| I trust the information provided by scientists and doctors at universities and academic institutions about vaccines during pregnancy. | 1799 (82) | 3.85 (3.07–4.84) | 3.55 (2.83–4.45) |
aOdds ratio (95% Confidence interval) for intention to receive influenza or Tdap vaccine by agreement with survey statement; boldface indicates statistical significance (p < 0.05).
bSpecific safety concerns were only obtained from those who did not agree that the vaccine in question was safe.
cRemoved those who stated they had not yet seen this type of provider from this analysis.
OR, Odds ratio