TABLE 1

Questions About Knowledge: First Interview (N = 29)

Question (Correct Answer in Parentheses)No. With Each Answer
CorrectIncorrectNot Sure
True/false
    Any vaccination/shot can cause a bruise. (true)1847
Multiple choice (4 choices)
    Which of these vaccines prevents meningitis? (Hib)9416
    Which of these vaccines prevents whooping cough? (pertussis/DTaP)1159
    Which of these is a proven adverse effect of the MMR vaccine? (fever)173c9
    Which of these vaccines prevents liver damage and liver cancer? (HepB)2216
    Which of these vaccines prevents a type of paralysis? (polio)2612
    Which statement describes the rotavirus vaccine?a5122
    Which statement describes thimerosal?8021
Multiple choice (choose all that apply from a list of 14 real vaccines and 1 false vaccine)
    Choose vaccines typically given at 2 months of age (choosing any 1 correctly without choosing an incorrect also)28d19
    Choose all vaccines heard of (choosing ≥5 real vaccines from list)28b00
  • Hib indicates Haemophilus influenzae serotype b vaccine; DTaP, diphtheria, tetanus, pertussis vaccine; HepB, hepatitis B vaccine; MMR, measles, mumps, rubella vaccine.

  • a n = 28.

  • b One mother selected “none” and 2 selected the false vaccine in addition to correct vaccines.

  • c All 3 chose autism (2 were nonvaccinators).

  • d MMR (6), chickenpox (3), smallpox (3).