TABLE 2

Vaccination Coverage for Cases and Referents and Association with CD

ExposuresaDescriptivesBivariate Logistic Regressionb
Cases (n = 392) n (%)Referents (n = 623) n (%)OR (95% CI)
Pertussis (Pa)
Nonvaccinated291 (74)457 (73)1.0
 Vaccinated101 (26)166 (27)0.91 (0.60–1.37)
Haemophilus influenzae type b (Hib)
Nonvaccinated81 (21)132 (21)1.0
 Vaccinated311 (79)491 (79)1.01 (0.68–1.52)
Measles/mumps/rubella (MMR)
Nonvaccinated320 (82)512 (82)1.0
 Vaccinated72 (18)111 (18)0.99 (0.58–1.69)
  • a Vaccines within the national Swedish program.

  • b Conditional logistic regression using matched sets of case and referent(s).