Differences between demographic groups in the coverage of dose 1, timely dose 1, and series completion for Hib vaccine and PCV in Shanghai children, 2012.

Hib: Haemophilus influenzae type b; PCV: 7-valent pneumococcal conjugate vaccine.
*P<0.05, chi-square test from binomial regression with identity link.
**P<0.0001, chi-square test from binomial regression with identity link.
aSeries completion was calculated for only those children with dose 1; variable constructed from manufacturers' recommendations.
bTimeliness was constructed from manufacturers' recommendations.
cThe likelihood ratio test comparing adjusted models 1 and 2 was not significant for the outcome “PCV series completion,” indicating that the fit did not improve with the addition of the interaction term.