Risk Factors Associated With Development and Persistence of Long COVID

September 2021 in “ bioRxiv (Cold Spring Harbor Laboratory) ”

Yusuke Miyazato, Shinya Tsuzuki, Shinichiro Morioka, Mari Terda, Satoshi Kutsuna, Sho Saito, Yumiko Shimanishi, Kozue Takahashi, Mio Sanada, Masako Akashi, Chika Kuge, Yasuyo Osanai, Keiko Tanaka, Michiyo Suzuki, Kayoko Hayakawa, Norio Ohmagari

hair loss dysosmia dysgeusia

TLDR Women, younger age, and low BMI increase the risk of long COVID symptoms.

This study conducted a cross-sectional questionnaire survey of 457 patients who recovered from COVID-19 to identify risk factors for the development and persistence of long COVID symptoms. It found that women were at higher risk for developing symptoms such as fatigue, dysosmia, dysgeusia, and hair loss, and for the persistence of any symptoms. Younger age and low body mass index were also identified as risk factors for developing dysosmia and dysgeusia. The study highlighted that even patients with mild COVID-19 cases experienced long-term residual symptoms, with 26.3% having symptoms after 6 months and 8.8% after 12 months.

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