Allied health research - 2019 highlights

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parents with new baby

Study captures reasons behind parental refusal on immunisation  

Lead researcher: Christine Gilmartin

Some new parents are declining their baby’s Hepatitis B virus birth-dose immunisation due to misconceptions around safety, a study shows. Of the 1574 eligible infants born at the Women’s during the study period, under 9 per cent did not receive their Hepatitis B virus birth-dose immunisation due to refusal by their parents. 

The most common reasons cited by parents included: 

  • having a preference for immunisation of Hepatitis B only at two, four and six months of age (57 per cent) 
  • feeling their baby was ‘too young’ (56 per cent) 
  • perceiving a low risk of contracting Hepatitis B (45 per cent) 
  • fear of ‘overloading’ the baby’s immune system (43 per cent) 
  • concern about risk of a serious side-effect (35 per cent). 

Research Pharmacist Christine Gilmartin said the birth-dose is critical to protecting infants from Hepatitis B at this vulnerable period in their lives – from birth to two months, when the next immunisation is due. 

“The vast majority of us know that immunisations are hugely important health interventions, particularly when it comes to protecting the health of babies and children, who are most vulnerable. But we also know that misinformation can persist,” she said. 

The study revealed that parents consulted multiple information sources before making their decision. The predominant information sources consulted were general practitioners or nurses/midwives (43 per cent), the internet/media (34 per cent) and family and friends (27 per cent). 

“While we are pleased to see that health professionals were reported as the predominant source of information for immunisation advice, the results also show that over a quarter of parents declining the birth-dose had sought information from family or friends, and over a third had consulted the internet or media,” Ms Gilmartin said. 

“The good news is that from this research we know more about the specific fears parents have about this particular early life immunisation and we can work towards addressing them.”