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Chang Kyun Choi 2 Articles
Non-linear Relationship Between Body Mass Index and Lower Urinary Tract Symptoms in Korean Males
Chang Kyun Choi, Sun A Kim, Ji-An Jeong, Sun-Seog Kweon, Min-Ho Shin
J Prev Med Public Health. 2019;52(3):147-153.   Published online March 29, 2019
DOI: https://doi.org/10.3961/jpmph.18.259
  • 11,416 View
  • 192 Download
  • 1 Crossref
AbstractAbstract AbstractSummary PDF
Objectives
The purpose of this study was to evaluate the association between body mass index (BMI) and severe lower urinary tract symptoms (LUTS) in Korean males.
Methods
This study was conducted on males aged ≥50 years who participated in the 2011 Korean Community Health Survey. LUTS severity was assessed using the Korean version of the International Prostate Symptom Score (IPSS) questionnaire, and was dichotomized as severe (IPSS >19) and non-severe (IPSS ≤19). BMI was divided into 6 categories: <18.5, 18.5-22.9, 23.0-24.9, 25.0-27.4, 27.5-29.9, and ≥30.0 kg/m2. To evaluate the relationship between BMI and LUTS, a survey-weighted multivariate Poisson regression analysis was performed to estimate prevalence rate ratios (PRRs). Age, smoking status, alcohol intake, physical activity, educational level, household income, and comorbidities were adjusted for in the multivariate model.
Results
A U-shaped relationship was detected between BMI and severe LUTS. Compared with a BMI of 23.0-24.9 kg/m2, the PRR for a BMI <18.5 kg/m2 was 1.65 (95% confidence interval [CI], 1.35 to 2.02), that for a BMI of 18.5-22.9 kg/m2 was 1.25 (95% CI, 1.09 to 1.44), that for a BMI of 25.0-27.4 kg/m2 was 1.20 (95% CI, 1.00 to 1.45), that for a BMI of 27.5-29.9 kg/m2 was 1.11 (95% CI, 0.83 to 1.47), and that for a BMI ≥30.0 kg/m2 was 1.85 (95% CI, 1.18 to 2.88).
Conclusions
This study showed that both high and low BMI were associated with severe LUTS.
Summary
Korean summary
이 연구는 2011 지역사회건강조사를 기반으로 하였다. 한국인 남성에서 체질량지수와 하부요로증상 간에는 U자형 관련성이 있었으며, 저체중과 비만 모두 높은 하부요로증상 유병률을 보였다. 따라서 전립선 질환의 건강서비스 제공에 있어서 비만 뿐만 아니라 저체중 또한 위험인자로 함께 고려할 필요가 있다.

Citations

Citations to this article as recorded by  
  • Metabolic syndrome and male lower urinary tract symptoms
    Gallus B. INEICHEN, Fiona C. BURKHARD
    Panminerva Medica.2022;[Epub]     CrossRef
Enhancing TNM Stage Completeness Using the SEER Summary Stage
Chang Kyun Choi, Mina Suh, Kyu-Won Jung, E Hwa Yun
Received February 6, 2025  Accepted March 27, 2025  Published online April 23, 2025  
DOI: https://doi.org/10.3961/jpmph.25.099    [Accepted]
  • 228 View
  • 9 Download
AbstractAbstract PDF
Objectives
Accurate and complete cancer staging is essential for effective prognosis and treatment planning. This study investigated the feasibility of enhancing the completeness of tumor‐node‐metastasis (TNM) staging by integrating Surveillance, Epidemiology, and End Results (SEER) Summary Stage data.
Methods
We analyzed data from 5 cancer types (stomach, colorectum, liver, lung, and breast) in South Korea (2012–2017). The study assessed the impact of supplementing missing TNM information with SEER Summary Stage data on both staging completeness and 5‐year relative survival rates.
Results
The study included 173,061 stomach cancer, 159,199 colorectal cancer, 89,639 liver cancer, 137,103 lung cancer, and 110,286 breast cancer patients. The percentage of missing TNM stage data varied by cancer type, ranging from 65.1% (breast cancer) to 93.0% (liver cancer). Supplementation significantly reduced missing values—most notably in stomach cancer, where missing data dropped by 50.6 percentage points, followed by liver (21.5 percentage points) and breast cancers (13.6 percentage points). For stomach cancer, supplementation led to a 3.6 percentage point decrease in stage I survival rates, whereas liver cancer exhibited the most pronounced changes, with stage IV survival rates declining from 17.7% to 7.9%.
Conclusions
Integrating SEER Summary Stage data enhances TNM staging completeness. However, further evaluation incorporating treatment information is essential.
Summary

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