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Member Research & Reports

Member Research & Reports

BU: PTSD Nearly Doubles Infection Risk

Having post-traumatic stress disorder (PTSD) nearly doubles a person’s risk of infections, according to a first-of-its-kind Boston University School of Public Health (BUSPH) study.

Published in the journal Epidemiology, the study is the first to examine the relationship between PTSD and dozens of infection types in a nationwide cohort. It is also the first to find that PTSD affects infection risks for men and women differently, having, for example, more of an effect on a woman’s risk of urinary tract infection and a man’s risk of skin infection.

“Our study adds to the growing evidence suggesting that PTSD and chronic severe stress are damaging for physical health,” says BUSPH doctoral candidate Ms. Tammy Jiang, who led the study.

The researchers used Danish national records to look at the health histories of every Danish-born Danish citizen who received a PTSD diagnosis from 1995 through 2011, and matched each person with a comparison group of Danes of the same sex and age. While previous studies have looked at the relationship between PTSD and one or two diseases, in this study the researchers looked at the Danes’ histories of hospital care for 28 different kinds of infections.

After adjusting for other physical and mental health diagnoses and for marriage/registered partnership, the researchers found that people with PTSD were 1.8 times as likely to have any infection as those without PTSD.

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