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Department of Clinical Infection Microbiology & Immunology Institute of Infection and Global Health University of Liverpool Liverpool UK
Field Epidemiology Services Public Health England Liverpool UK
Department of Public Health and Policy University of Liverpool Liverpool UK
Department of Clinical Sciences Liverpool School of Tropical Medicine Liverpool UK
Health Protection Cheshire and Merseyside Public Health England North West Liverpool UK
Public Health Salford City Council Unity House Civic Centre Chorley Road Swinton UK
Public Health England/NHS England Merseyside Screening and Immunisation Lead Liverpool UK
NIHR Health Protection Research Unit in Gastrointestinal Infections Liverpool UK
http://www.ncbi.nlm.nih.gov/pubmed/26542197
SUMMARY
Suboptimal uptake of the measles mumps and rubella (MMR) vaccine by certain socioeconomic groups may have contributed to recent large measles outbreaks in the UK. We investigated whether socioeconomic deprivation was associated with MMR vaccine uptake over 16 years. Using immunization data for 72 351 children born between 1995 and 2012 in Liverpool UK we examined trends in vaccination uptake. Generalized linear models were constructed to examine the relative effect of socioeconomic deprivation and year of birth on MMR uptake. Uptake of MMR1 by age 24 months ranged between 82·5% in 2003 [95% confidence interval (CI) 81·2–83·7] and 93·4% in 2012 (95% CI 92·7–94·2). Uptake of MMR2 by age 60 months ranged between 65·3% (95% CI 64·4–67·4) in 2006 and 90·3% (95% CI 89·4–91·2) in 2012. In analysis adjusted for year of birth and sex children in the most deprived communities were at significantly greater risk of not receiving MMR1 [risk ratio (RR) 1·70 95% CI 1·45–1·99] and MMR2 (RR 1·36 95% CI 1·22–1·52). Higher unemployment and lower household income were significantly associated with low uptake. Contrary to concerns about lower MMR uptake in affluent families over 16 years children from the most socioeconomically deprived communities have consistently had the lowest MMR uptake. Targeted catch-up campaigns and strategies to improve routine immunization uptake in deprived areas are needed to minimize the risk of future measles outbreaks.