Doctors ID New Ways to Get More Kids Vaccinated
Messages that focus on benefits to the child have the most impact, study finds
By Dennis Thompson
MONDAY, Aug. 18, 2014 (HealthDay News) -- Doctors are still struggling to find effective ways to convince wary parents of the importance of vaccinating their infant children.
The whooping cough epidemic of 2011-12 made no significant difference in Washington state parents getting their babies up to date on their shots, researchers found. Nearly one-third of their infants remained unprotected against whooping cough even as the virus spread across 49 states, according to one of three vaccination-related studies published online Aug. 18 in the journal Pediatrics.
About nine out of 10 parents in the United States keep up with the recommended childhood vaccination schedule, getting their child shots to protect against infectious diseases such as measles, mumps, whooping cough, polio and hepatitis B, according to the U.S. Centers for Disease Control and Prevention.
But doctors and public health officials have found convincing that final 10 percent of parents extremely challenging.
Parents' response to the whooping cough outbreak is "somewhat humbling" for pediatricians who believe progress is being made regarding the childhood immunization rate, said Dr. Carrie Byington, chief of the American Academy of Pediatrics' committee on infectious diseases.
The vaccination rate received only a slight bump during the whooping cough epidemic -- up to 69.5 percent of infants in Washington state -- and fell back to 67.6 percent afterward.
"It tells us we still have a ways to go in understanding human behavior and what motivates people regarding their health," Byington said.
One way to predict which parents will reject vaccination for their children is to keep track of who refuses their baby a vitamin K shot at birth, Canadian researchers report in one of the Pediatrics studies.
Vitamin K is recommended for newborns to prevent a rare bleeding disorder that can result in long-term brain damage and death, researchers said in background information.
Only a small minority of parents in Alberta, Canada, refused a vitamin K shot for their newborns between 2006 and 2012, the study found.
But children whose parents declined vitamin K were 14.6 times less likely to be immunized with any recommended childhood vaccines by age 15 months, compared to kids who got vitamin K.
Byington said refusal of vitamin K at birth "is a factor that can help pediatricians identify vaccine-hesitant parents."
But how to convince those parents of the importance of vaccination?
Indiana University researchers tested four messages in a national online survey involving more than 800 parents of children younger than 12 months old. "We wanted to get parents where we knew this would be an upcoming decision for them, where they were thinking about doing it but hadn't done it yet," said lead author Kristin Hendrix, an assistant professor of pediatrics at the Indiana University School of Medicine.