Diphtheria, the public health response and the origins of the childhood immunisation programme in Ireland

In common with most countries, the childhood immunisation programme in Ireland was founded on a successful public health response to diphtheria. The success of the antidiphtheria public health intervention in Ireland has meant that no case of the disease has been recorded in the state for almost fifty years. This is a significant achievement considering that diphtheria continues to appear annually in many European states, albeit in much reduced numbers on former years. For parents and children of nineteenth, and early twentieth-century Ireland, diphtheria represented the ‘most dreaded disease of childhood’, however, for their modern day counterparts diphtheria is no more than an obscure disease mentioned in leaflets promoting the benefits of childhood immunisation. In Ireland, diphtheria has been consigned to history, and so too have the horrors and mass fatalities once associated with it. But how was this achieved? Was active immunisation received with open arms by public health authorities, the wider medical community, and the general public? This study tackles these questions by undertaking the first historical examination of the issues which underpin the origins of active immunisation in Ireland. It explores the driving forces that shaped the national childhood immunisation programme, and those that opposed them. In addition, it examines the complex social implications attendant on the introduction of this mass public health intervention in an Irish context.

Measured parental weight status and familial socio-economic status correlates with childhood overweight and obesity at age 9

Background: Parental obesity is a predominant risk factor for childhood obesity. Family factors including socio-economic status (SES) play a role in determining parent weight. It is essential to unpick how shared family factors impact on child weight. This study aims to investigate the association between measured parent weight status, familial socio-economic factors and the risk of childhood obesity at age 9. Methodology/Principal Findings: Cross sectional analysis of the first wave (2008) of the Growing Up in Ireland (GUI) study. GUI is a nationally representative study of 9-year-old children (N = 8,568). Schools were selected from the national total (response rate 82%) and age eligible children (response rate 57%) were invited to participate. Children and their parents had height and weight measurements taken using standard methods. Data were reweighted to account for the sampling design. Childhood overweight and obesity prevalence were calculated using International Obesity Taskforce definitions. Multinomial logistic regression examined the association between parent weight status, indicators of SES and child weight. Overall, 25% of children were either overweight (19.3%) or obese (6.6%). Parental obesity was a significant predictor of child obesity. Of children with normal weight parents, 14.4% were overweight or obese whereas 46.2% of children with obese parents were overweight or obese. Maternal education and household class were more consistently associated with a child being in a higher body mass index category than household income. Adjusted regression indicated that female gender, one parent family type, lower maternal education, lower household class and a heavier parent weight status significantly increased the odds of childhood obesity. Conclusions/Significance: Parental weight appears to be the most influential factor driving the childhood obesity epidemic in Ireland and is an independent predictor of child obesity across SES groups. Due to the high prevalence of obesity in parents and children, population based interventions are required.