Is fatherhood itself protective?

Here's the study's seemingly contradictory twist. Across Georgia men older than 20, fathers consistently had lower overall death rates than non-fathers between 2017 and 2022.

Consider ages 30 to 34. Georgia fathers died at a rate of 120 deaths per 100,000 men, while non-fathers died at 231 per 100,000 — nearly double. That's roughly one death for every 830 fathers that year, versus one for every 430 non-fathers.

"Being a father appears to be protective in this particular group of men," Garfield said. "Whether that is due to changes in lifestyle or a new purpose or new roles and responsibilities, we don't know, but it is certainly worth further study."

Who faced the greatest risks?

Deaths from non-natural causes hit younger fathers hardest. The researchers linked birth records to death records for fathers named on birth certificates, then examined causes and risk factors.

Several factors stood out:

• Medicaid-paid births and unmarried status were associated with greater homicide risk.
• Fathers who died were more likely to be older, non-Hispanic Black, unmarried, rural and connected to Medicaid-paid births.
• Higher education levels, Hispanic ethnicity and Tricare-paid births were associated with fewer deaths.

What inspired the research?

Garfield, a pediatrician at Ann & Robert H. Lurie Children's Hospital of Chicago, drew on his time in the neonatal intensive care unit. He has met numerous mothers coping with the sudden death of a partner from shootings, car accidents and other unexpected events.

"In my experience, that happens more often than mothers dying," Garfield said. "The death of any parent has enormous consequences for a child, and as a pediatrician, I care most about how a parent's death impacts the child, especially in the early years."

Previous research connects father involvement with better health outcomes for children and families, while a father's absence is associated with a variety of negative outcomes for children.

Why only Georgia?

A nationwide version of this analysis isn't currently possible. States collect detailed birth and death records, but national compilations strip out personally identifiable information, making it impossible to link individual fathers to specific causes of death.

The Northwestern team could study Georgia because they already had access through their PRAMS for Dads survey, which they developed and first piloted in Georgia in 2018. Garfield hopes other states will run similar analyses, which could eventually support a national tracking system.

"If we don't measure it, we can't change it," Garfield said. "That affects thousands of children."

The study does carry limits worth noting. It covers a single state over five years, and it can only identify fathers named on birth certificates. Whether the protective effect of fatherhood holds nationally, and what drives it, remains an open question.