“Unfortunately, the same may well hold true with COVID-19,” said Stephen Buka, a professor of epidemiology at Brown’s School of Public Health and senior author of the paper. The researchers say that, overall, both findings suggest that the Chilean disaster survivors who had experienced multiple stressors and traumas were at a greater risk of developing a post-disaster mental health disorder compared to those who had experienced few or no prior stressors.
MDD displayed a slightly different pattern: Every pre-disaster stressor, even a single stressor increased a person’s risk of developing post-disaster MDD, and each additional stressor further increased the risk, according to the study’s findings. To be at increased risk for post-disaster PTSD, individuals had to have crossed a “severity threshold” of four or more pre-disaster stressors, the researchers explained. The risk of developing these disorders was particularly high among individuals who experienced multiple pre-disaster stressors, such as a serious illness or injury, death of a loved one, divorce, unemployment or financial struggles, legal troubles, or loss of a valuable possession.
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