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Comparative analysis of body mass index and obesity-related anthropometric indices for mortality prediction: a study of the Namwon and Dong-gu cohorts
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Ye-Rim Kim, Min-Ho Shin, Young-Hoon Lee, Seong-Woo Choi, Hae-Sung Nam, Jeong-Ho Yang, Sun-Seog Kweon
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Epidemiol Health. 2024;e2024066. Published online July 17, 2024
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DOI: https://doi.org/10.4178/epih.e2024066
[Accepted]
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Abstract
OBJECTIVES
This study investigated the associations between several obesity-related anthropometric indices and mortality in middle-aged and elderly populations to compare the indices’ predictive ability with that of the body mass index (BMI).
METHODS We analyzed data on 12 indices calculated from 19,805 community-based cohort participants (average age, 63.27 years; median follow-up, 13.49 years). Each index was calculated using directly measured values of height, weight, waist circumference (WC), and hip circumference (HC). We calculated hazard ratios (HRs) and 95% confidence intervals (CIs) for each index using Cox regression and evaluated mortality prediction with the Harrell c-index.
RESULTS Adding anthropometric indices to the basic mortality model (c-index 0.7723; 95% CI, 0.7647-0.7799) significantly increased the predictive power of BMI (c-index 0.7735; 95% CI, 0.7659-0.7811), a body shape index (ABSI, c-index 0.7735; 95% CI, 0.7659-0.7810), weight-adjusted waist index (WWI, c-index 0.7731; 95% CI, 0.7656-0.7807), and waist to hip index (WHI, c-index 0.7733; 95% CI, 0.7657-0.7809). The differences between the BMI model and the other 3 models were not statistically significant.
CONCLUSIONS In predicting all-cause mortality, the ABSI, WWI, and WHI models based on WC or HC had stronger predictive power than conventional risk factors but were not significantly different from the BMI model.
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Summary
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No evidence of delay in colorectal cancer diagnosis during the COVID-19 pandemic in Gwangju and Jeonnam, Korea
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Hye-Yeon Kim, Min-Gyeong Kim, Mi-Ran Kang, Jeong-Ho Yang, Min-Ho Shin, Sun-Seog Kweon
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Epidemiol Health. 2022;44:e2022092. Published online October 17, 2022
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DOI: https://doi.org/10.4178/epih.e2022092
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Abstract
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Abstract
OBJECTIVES
We evaluated whether the coronavirus disease 2019 (COVID-19) pandemic caused delays in the diagnosis and treatment of colorectal cancer (CRC) in Korea, where there have been no regional or hospital lockdowns during the pandemic period.
METHODS Data on CRC patients (n=1,445) diagnosed in Gwangju Metropolitan City and Jeonnam Province between January 2019 and December 2021 were assessed. The stage at the time of CRC diagnosis, route to diagnosis, time to initial cancer treatment, and length of hospital admission were compared before and during the COVID-19 pandemic. Logistic regression was also performed to identify factors associated with the risk for diagnosis in an advanced stage.
RESULTS No negative effects indicating a higher CRC stage at diagnosis or delayed treatment during the pandemic were observed. Instead, the risk for an advanced stage at diagnosis (TNM stage III/IV) decreased in CRC patients diagnosed during the pandemic (odds ratio, 0.768; 95% confidence interval, 0.647 to 0.911). No significant differences in the interval from diagnosis to operation or chemotherapy were observed.
CONCLUSIONS No negative effects on CRC diagnosis and treatment were found until the end of 2021, which may be related to the small magnitude of the COVID-19 epidemic, the absence of a lockdown policy in Korea, and the rebound in the number of diagnostic colonoscopy procedures in 2021.
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Summary
Korean summary
COVID-19 판데믹 시기에 진단된 대장암환자에서 진단병기의 지연과 치료의 지연이 발생한 증거는 찾을 수 없었다. 이것은 2021년까지 한국에서는 유행규모가 크지 않았고, 의료기관 또는 지역단위의 봉쇄정책이 거의 없었기 때문일 것으로 추정된다.
Key Message
No evidence of delayed diagnosis and treatment of colorectal cancer was found during the COVID-19 pandemic period (2020-2021) in Gwangju-Jeonnam, Korea. It may be related to the small magnitude of the COVID-19 epidemic, the absence of a lockdown policy in Korea.
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Citations
Citations to this article as recorded by  - The impact of the UK COVID-19 lockdown on the screening, diagnostics and incidence of breast, colorectal, lung and prostate cancer in the UK: a population-based cohort study
Nicola L. Barclay, Marta Pineda Moncusí, Annika M. Jödicke, Daniel Prieto-Alhambra, Berta Raventós, Danielle Newby, Antonella Delmestri, Wai Yi Man, Xihang Chen, Marti Català
Frontiers in Oncology.2024;[Epub] CrossRef
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