Now hot off the press from the “always-guessed-it-was-true-but-now-you-know-it” department comes a multinational study that looked at childhood cardiovascular risk factors and longevity.
Using data collected from individuals in Finland, Australia, and the United States the International Childhood Cardiovascular Cohorts Consortium Outcomes Study investigators sought links between subjects’ body mass index, systolic blood pressure, total cholesterol, blood triglyceride level, and smoking in childhood with cardiovascular disease and outcomes as they aged into adulthood.
Dr. William G. Wilkoff
The children were initially enrolled in the 1970s and 1980s. The adult evaluations were done in 2015-2019 when the subjects’ average age was 46. Of the 40,000 individuals who originally entered the study, 800 were found to have cardiovascular events of which over 300 had resulted in death. I found these numbers a bit surprising given the relatively young age at which the follow-up data were collected.
What was less surprising is that people with higher than normal values for all five risk factors as children had nearly three times the risk of cardiovascular disease as adults. Researchers found that smoking at a young age was biggest risk factor with body mass index, systolic blood pressure, blood triglycerides, and cholesterol following in descending order. They also found that adults who were obese as children had triple the risk of cardiovascular disease as adults. High blood pressure in childhood doubled the risk.
It will be interesting to see if and how these trends change as the study population ages. It could be that the effect of these childhood risk factors is blunted as the those segments at the highest risk die off and/or risk- associated behaviors adopted in adulthood become more prominent. But, it feels more likely that the childhood risk factors will remain as major contributors.
Is this just another ho-hum-told-you-so study or does it have some special relevance for us as pediatricians? At a minimum these findings should inspire us to stick with our calling to commit ourselves to the health of children. A healthy adult population is clearly our legacy.
Of course the two individual risk factors in childhood that appear to be the most potent in adulthood, obesity and smoking, are also the most frustrating for pediatricians to address. However, the study suggests that we should rejoice in those few successes when we achieve them. Childhood obesity has been a tough nut to crack. On the other hand, the societal change that has made great strides in adult smoking over the last half century should encourage us that our work with the pediatric population will eventually bring rewards.
Smoking and obesity can include components of both patient and parental behavior. Monitoring cholesterol, triglycerides, and blood pressure hinges on our behavior as providers. Although there have been recent recommendations that we be more attentive, we don’t have a strong history when it comes to detecting and addressing high blood pressure in children. This study should serve as an another reminder to take blood pressure more seriously.
I was surprised and somewhat disappointed that I first learned about the results of this study in an email newsletter from the medical school I attended. I would have hoped that a paper like this from a well known peer-reviewed journal with a clear message about the relationship of childhood health and longevity should have been picked up quickly by the lay press. Again, this leaves it to us to promote the message that the health of children is important in and of itself but plays a critical role in the health of adults.
Dr. Wilkoff practiced primary care pediatrics in Brunswick, Maine, for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at pdnews@mdedge.com.