The findings by the Indian Council of Medical Research also showed that the receipt of two doses of a vaccine lowered the odds of unexplained sudden death.
The study was conducted at 47 hospitals across India and involved apparently healthy individuals aged 18-45 years without any known co-morbidity, who suddenly died of unexplained causes from October 2021 to March 2023.
Researchers pointed to other factors for sudden deaths, including past hospitalization for COVID, a family history of sudden death, binge drinking 48 hours or less before death, use of recreational drugs and substances, and performing vigorous-intensity physical activity two days or less before death.
"COVID-19 vaccination did not increase the risk of unexplained sudden death among young adults in India," the researchers stated. "Past COVID-19 hospitalization, family history of sudden death, and certain lifestyle behaviors increased the likelihood of unexplained sudden death."
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