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. 2015 Dec 17;3(1):ofv204. doi: 10.1093/ofid/ofv204

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© The Author 2015. Published by Oxford University Press on behalf of the Infectious Diseases Society of America.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com.

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Figure 3. — Incidence rate and incidence rate ratio (IRR) according to the most recent vaccine and sequence. ^aThe incidence rate per 100 person years and in brackets the number of admissions and number of person years. ^bThe IRRs for the vaccine type the arrow points at relative to the previous vaccine type in the sequence and in brackets 95% confidence interval. Estimated from Cox proportional hazards model with age as underlying time, stratified by date of birth and adjusted for maternal smoking during pregnancy, sex, birth weight, gestational age, caesarean section, chronic diseases, number of infectious disease admissions before 24 months of age, admitted to hospital for any cause within the last 30 days, maternal age at birth of the child, highest educational level for the female adult in the household, parental place of birth, adults in the household, income quintiles for the household, other children in the household, and population density. ^cP value from a Wald test of the equality of rates for live vaccine against measles, mumps, and rubella (MMR) as most recent vaccine in the adjusted model. ^dP value from a Wald test of the equality of rates for live oral polio vaccine (OPV)1 as most recent vaccine in the adjusted model. Abbreviations: Adj, adjusted; DTaP-IPV-Hib, inactivated vaccine against diphtheria, tetanus, pertussis (acellular), polio, and Haemophilus influenzae type b.