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Association of decreased estimated glomerular filtration rate with lung cancer risk in the Korean population
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Soonsu Shin, Min-Ho Kim, Chang-Mo Oh, Hyejin Chun, Eunhee Ha, Hyo Choon Lee, Seong Ho Moon, Dong-Young Lee, Dosang Cho, Sangho Lee, Min Hyung Jung, Jae-Hong Ryoo
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Epidemiol Health. 2024;e2024041. Published online March 20, 2024
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DOI: https://doi.org/10.4178/epih.e2024041
[Accepted]
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 Abstract
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Abstract
OBJECTIVES
Inconsistent results are available regarding the association between low estimated glomerular filtration rate (eGFR) and lung cancer risk. We aimed to explore the risk of lung cancer according to eGFR category in the Korean population.
METHODS We included 358,293 adults who underwent health checkups between 2009 and 2010, utilizing data from the National Health Insurance Service-National Sample Cohort. Participants were categorized into 3 groups based on their baseline eGFR, as determined using the Chronic Kidney Disease Epidemiology Collaboration equation: group 1 (eGFR ≥90 mL/min/1.73m2), group 2 (eGFR ≥60 to <90mL/min/1.73m2), and group 3 (eGFR <60 mL/min/1.73m2). Incidences of lung cancer were identified using the corresponding codes from the International Classification of Diseases, 10th Revision. Multivariate Cox proportional hazard models were employed to calculate the adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for lung cancer incidence up to 2019.
RESULTS In multivariate analysis, group 2 exhibited a 26.5% higher risk of developing lung cancer than group 1 (HR, 1.265; 95% CI, 1.189 to 1.346). Furthermore, group 3 demonstrated a 72.5% elevated risk of lung cancer relative to group 1 (HR, 1.725; 95% CI, 1.577 to 1.887). Among participants with dipstick proteinuria of 2+ or greater, group 3 faced a significantly higher risk of lung cancer than group 1 (HR, 2.928; 95% CI, 1.375 to 6.237).
CONCLUSION Low eGFR was significantly associated with increased lung cancer risk within the Korean population. A particularly robust association was observed in individuals with severe proteinuria, emphasizing the need for further investigation.
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Summary
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Changes in proteinuria and the associated risks of ischemic heart disease, acute myocardial infarction,
and angina pectoris in Korean population
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Sung Keun Park, Ju Young Jung, Min-Ho Kim, Chang-Mo Oh, Eunhee Ha, Eun Hye Yang, Hyo Choon Lee, Soonsu Shin, Woo Yeon Hwang, Sangho Lee, So Youn Shin, Jae-Hong Ryoo
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Epidemiol Health. 2023;45:e2023088. Published online September 30, 2023
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DOI: https://doi.org/10.4178/epih.e2023088
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Abstract
Summary
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 Supplementary Material
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Abstract
OBJECTIVES
Proteinuria is widely used to predict cardiovascular risk. However, there is insufficient evidence to predict how changes in proteinuria may affect the incidence of cardiovascular disease.
METHODS The study included 265,236 Korean adults who underwent health checkups in 2003-2004 and 2007-2008. They were categorized into 4 groups based on changes in proteinuria (negative: negative → negative; resolved: proteinuria ≥1+ → negative; incident: negative → proteinuria ≥1+; persistent: proteinuria ≥1+ → proteinuria ≥1+). We conducted 6 years of follow-up to identify the risks of developing ischemic heart disease (IHD), acute myocardial infarction (AMI), and angina pectoris according to changes in proteinuria. A multivariate Cox proportional-hazards model was used to calculate adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for incident IHD, AMI, and angina pectoris.
RESULTS The IHD risk (expressed as HR [95% CI]) was the highest for persistent proteinuria, followed in descending order by incident and resolved proteinuria, compared with negative proteinuria (negative: reference, resolved: 1.211 [95% CI, 1.104 to 1.329], incident: 1.288 [95% CI, 1.184 to 1.400], and persistent: 1.578 [95% CI, 1.324 to 1.881]). The same pattern was associated with AMI (negative: reference, resolved: 1.401 [95% CI, 1.048 to 1.872], incident: 1.606 [95% CI, 1.268 to 2.035], and persistent: 2.069 [95% CI, 1.281 to 3.342]) and angina pectoris (negative: reference, resolved: 1.184 [95% CI, 1.065 to 1.316], incident: 1.275 [95% CI, 1.160 to 1.401], and persistent: 1.554 [95% CI, 1.272 to 1.899]).
CONCLUSIONS Experiencing proteinuria increased the risks of IHD, AMI, and angina pectoris even after proteinuria resolved.
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Summary
Korean summary
- 본 연구의 목적은 요 시험지 검사를 통해 확인된 단백뇨의 3-5년간의 변화 수준에 따른 허혈성 심질환, 급성 심근 경색, 협심증의 발생 위험을 평가하는 것이다.
- 지속적으로 단백뇨가 음성인 집단에 (negative proteinuria) 비해서, 단백뇨가 있었다 사라진 집단 (resolved proteinuria), 새로이 단백뇨가 생긴 집단 (incident proteinuria), 지속적으로 단백뇨가 존재하는 집단 (persistent proteinuria)은 유의하게 증가한 허혈성 심질환, 급성 심근 경색, 협심증의 발생 위험을 나타내었다.
- 이러한 결과는 단백뇨가 일단 발생한 사람은, 나중에 사라지더라도, 관상 동맥 질환에 대한 위험이 높으며, 이에 대한 관리와 주의가 필요하다는 것을 시사한다.
Key Message
- The present study was to evaluate the risk of incident ischemic heart disease, acute myocardial infarction, and angina pectoris according to changes in urine dipstick proteinuria over 3-5 years.
- Compared with persistently negative proteinuria (negative → negative), resolved proteinuria (positive → negative), incident proteinuria (negative → positive), and persistent proteinuria (positive → positive) had the increased risk of ischemic heart disease, acute myocardial infarction, and angina pectoris.
- These results suggest that once manifested proteinuria lead to the increased risk of coronary artery disease, regardless of changes in proteinuria.
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