Study Reveals Long-Term Effects of Hurricane Sandy on Senior Mortality
More than ten years after Hurricane Sandy caused devastating flooding along the East Coast and resulted in over 200 fatalities, a new study highlights the storm’s enduring impact on mortality rates among older adults. Researchers found that those aged 65 and above who remained in affected areas faced a 9% increased risk of death linked to hurricane flood exposure.
It’s estimated that Hurricane Sandy inflicted damages surpassing $60 billion after making landfall in 2012. The storm brought record-breaking surges and severe flooding that overwhelmed the coastlines of New York and New Jersey, leading to the destruction of hundreds of thousands of homes. While communities have largely rebuilt since then, the hidden implications of the hurricane on senior mortality still linger, as detailed in a study published on August 6 in Frontiers in Public Health. The researchers emphasized the importance of understanding how natural disasters affect public health in the long run, particularly for vulnerable groups.
Arnab Ghosh, the senior author and an assistant professor of medicine at Weill Cornell Medicine, mentioned in an email to Gizmodo, “Hurricanes and the damage they cause affect the lives of nearby residents; repairing homes and coping with the associated stress can have long-lasting effects, which may be reflected in mortality rates.”
Ghosh also pointed out other consequences of hurricanes, stating that the environment in affected areas shifts dramatically. People often relocate, and businesses may close down, which can hinder social connections and friendships—critical factors for older adults.
The research team took a closer look at regions most impacted—specifically New York State, New Jersey, Connecticut, and New York City—dividing them into 959 zip code tabulation areas (ZCTAs). These ZCTAs provide a way to classify demographic and health data by specific locations. Out of the 959 ZCTAs, 454 experienced flooding during Hurricane Sandy, and 505 were located within a 10-mile radius of flooded zones.
The researchers then examined health data from nearly 300,000 Medicare beneficiaries over 65 who remained in their zip code areas between 2013 and 2017. They considered factors like age, gender, race, living conditions, and other demographic and socioeconomic variables to pinpoint the effects of flooding.
The analysis indicated that seniors in flooding-impacted ZCTAs had a significantly elevated risk—averaging 9%—of dying from all causes compared to those in unaffected zones. This risk continued for up to five years following the hurricane’s landfall.
Interestingly, while increases in mortality risk varied by location, the patterns weren’t what the researchers anticipated. Seniors in flooded regions of Connecticut and New York City displayed the highest mortality risk increases: 19% and 8%, respectively. Ghosh expressed surprise that those in wealthier Connecticut experienced higher risks than those in New York City, where socioeconomic factors might suggest a higher exposure to disasters. Further investigations are needed to clarify this, though Ghosh speculated it might be linked to Connecticut’s relative lack of hurricane preparedness, as severe storms are uncommon there.
In contrast, New Jersey and New York State showed no significant effects on all-cause mortality among seniors related to flooding. “We were taken aback by this observation,” Ghosh acknowledged. This could be due to the prevalence of vacation homes along the coast in New Jersey, which might mitigate the consequences of flooding.
Ghosh hopes this research will inform disaster response and preparedness strategies at both local and federal levels. Organizations must consider not just immediate outcomes but also long-term health implications that arise from hurricanes. “There’s definitely a need for improved policies and infrastructure, especially as hurricanes become more frequent and severe,” he stated.
