The effect of BMI on COVID-19 outcomes among older patients in South Korea: a nationwide retrospective cohort study*
AbstractBackground: The coronavirus disease 2019 (COVID-19) pandemic has caused deaths and shortages in medical resources worldwide, making the prediction of patient prognosis and the identification of risk factors very important. Increasing age is already known as one of the main risk factors for p...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-01-01
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| Series: | Annals of Medicine |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/07853890.2021.1946587 |
| _version_ | 1797385685954461696 |
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| author | Yongtak Cho Yongil Cho Hyuk Joong Choi Heekyung Lee Tae Ho Lim Hyunggoo Kang Byuk Sung Ko Jaehoon Oh |
| author_facet | Yongtak Cho Yongil Cho Hyuk Joong Choi Heekyung Lee Tae Ho Lim Hyunggoo Kang Byuk Sung Ko Jaehoon Oh |
| author_sort | Yongtak Cho |
| collection | DOAJ |
| description | AbstractBackground: The coronavirus disease 2019 (COVID-19) pandemic has caused deaths and shortages in medical resources worldwide, making the prediction of patient prognosis and the identification of risk factors very important. Increasing age is already known as one of the main risk factors for poor outcomes, but the effect of body mass index (BMI) on COVID-19 outcomes in older patients has not yet been investigated. Aim: We aimed to determine the effect of BMI on the severity and mortality of COVID-19 among older patients in South Korea. Methods: Data from 1272 COVID-19 patients (≥60 years old) were collected by the Korea Centers for Disease Control and Prevention. The odds ratios (ORs) of severe infection and death in the BMI groups were analyzed by logistic regression adjusted for covariates.Results: The underweight group (BMI<18.5 kg/m2) had a higher OR for death (adjusted OR = 2.23, 95% confidence interval [95% CI] = 1.06–4.52) than the normal weight group (BMI, 18.5–22.9 kg/m2). Overweight (BMI, 23.0–24.9 kg/m2) was associated with lower risks of both severe infection (adjusted OR = 0.55, 95% CI = 0.31–0.94) and death (adjusted OR = 0.50, 95% CI = 0.27–0.91). Conclusions: Underweight was associated with an increased risk of death, and overweight was related to lower risks of severe infection and death in older COVID-19 patients in Korea. However, this study was limited by the lack of availability of some information, including smoking status.KEY MESSAGESUnderweight is an independent risk factor of death in older COVID-19 patients.Overweight patients have a lower risk of death and severe infection than normal-weight patients. |
| first_indexed | 2024-03-08T21:57:52Z |
| format | Article |
| id | doaj.art-374d2307a850477a99c66f2f14916fd6 |
| institution | Directory Open Access Journal |
| issn | 0785-3890 1365-2060 |
| language | English |
| last_indexed | 2024-03-08T21:57:52Z |
| publishDate | 2021-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Annals of Medicine |
| spelling | doaj.art-374d2307a850477a99c66f2f14916fd62023-12-19T16:46:27ZengTaylor & Francis GroupAnnals of Medicine0785-38901365-20602021-01-015311293130210.1080/07853890.2021.1946587The effect of BMI on COVID-19 outcomes among older patients in South Korea: a nationwide retrospective cohort study*Yongtak Cho0Yongil Cho1Hyuk Joong Choi2Heekyung Lee3Tae Ho Lim4Hyunggoo Kang5Byuk Sung Ko6Jaehoon Oh7Department of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaAbstractBackground: The coronavirus disease 2019 (COVID-19) pandemic has caused deaths and shortages in medical resources worldwide, making the prediction of patient prognosis and the identification of risk factors very important. Increasing age is already known as one of the main risk factors for poor outcomes, but the effect of body mass index (BMI) on COVID-19 outcomes in older patients has not yet been investigated. Aim: We aimed to determine the effect of BMI on the severity and mortality of COVID-19 among older patients in South Korea. Methods: Data from 1272 COVID-19 patients (≥60 years old) were collected by the Korea Centers for Disease Control and Prevention. The odds ratios (ORs) of severe infection and death in the BMI groups were analyzed by logistic regression adjusted for covariates.Results: The underweight group (BMI<18.5 kg/m2) had a higher OR for death (adjusted OR = 2.23, 95% confidence interval [95% CI] = 1.06–4.52) than the normal weight group (BMI, 18.5–22.9 kg/m2). Overweight (BMI, 23.0–24.9 kg/m2) was associated with lower risks of both severe infection (adjusted OR = 0.55, 95% CI = 0.31–0.94) and death (adjusted OR = 0.50, 95% CI = 0.27–0.91). Conclusions: Underweight was associated with an increased risk of death, and overweight was related to lower risks of severe infection and death in older COVID-19 patients in Korea. However, this study was limited by the lack of availability of some information, including smoking status.KEY MESSAGESUnderweight is an independent risk factor of death in older COVID-19 patients.Overweight patients have a lower risk of death and severe infection than normal-weight patients.https://www.tandfonline.com/doi/10.1080/07853890.2021.1946587COVID-19body mass indexolder patientunderweight |
| spellingShingle | Yongtak Cho Yongil Cho Hyuk Joong Choi Heekyung Lee Tae Ho Lim Hyunggoo Kang Byuk Sung Ko Jaehoon Oh The effect of BMI on COVID-19 outcomes among older patients in South Korea: a nationwide retrospective cohort study* Annals of Medicine COVID-19 body mass index older patient underweight |
| title | The effect of BMI on COVID-19 outcomes among older patients in South Korea: a nationwide retrospective cohort study* |
| title_full | The effect of BMI on COVID-19 outcomes among older patients in South Korea: a nationwide retrospective cohort study* |
| title_fullStr | The effect of BMI on COVID-19 outcomes among older patients in South Korea: a nationwide retrospective cohort study* |
| title_full_unstemmed | The effect of BMI on COVID-19 outcomes among older patients in South Korea: a nationwide retrospective cohort study* |
| title_short | The effect of BMI on COVID-19 outcomes among older patients in South Korea: a nationwide retrospective cohort study* |
| title_sort | effect of bmi on covid 19 outcomes among older patients in south korea a nationwide retrospective cohort study |
| topic | COVID-19 body mass index older patient underweight |
| url | https://www.tandfonline.com/doi/10.1080/07853890.2021.1946587 |
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