Kidney Week

Abstract: TH-PO1012

National Trends in the Prevalence of CKD Among Korean Adults, 2007-2020, Including the COVID-19 Pandemic: A Korean Representative Serial Study

Session Information

• CKD Epidemiology, Risk Factors, Prevention - I
  November 02, 2023 | Location: Exhibit Hall, Pennsylvania Convention Center
  Abstract Time: 10:00 AM - 12:00 PM

Category: CKD (Non-Dialysis)

• 2301 CKD (Non-Dialysis): Epidemiology, Risk Factors, and Prevention

Authors

• Jeong, Kyunghwan, Kyung Hee University Hospital, Dongdaemun-gu, Seoul, Korea (the Republic of)

Kyunghwan Jeong,

• Yoon, Soo-Young, Kyung Hee University Hospital, Dongdaemun-gu, Seoul, Korea (the Republic of)

Soo-Young Yoon,

• Kim, Dae Kyu, Kyung Hee University Hospital, Dongdaemun-gu, Seoul, Korea (the Republic of)

Dae Kyu Kim,

• Lee, Hyo Jin, Kyung Hee University Hospital, Dongdaemun-gu, Seoul, Korea (the Republic of)

Hyo Jin Lee,

• Kim, Yang Gyun, Kyung Hee University Hospital at Gangdong, Gangdong-gu, Seoul, Korea (the Republic of)

Yang Gyun Kim,

• Kim, Jin sug, Kyung Hee University Hospital, Dongdaemun-gu, Seoul, Korea (the Republic of)

Jin sug Kim,

• Moon, Ju young, Kyung Hee University Hospital at Gangdong, Gangdong-gu, Seoul, Korea (the Republic of)

Ju young Moon,

• Hwang, Hyeon Seok, Kyung Hee University Hospital, Dongdaemun-gu, Seoul, Korea (the Republic of)

Hyeon Seok Hwang,

Background

Little is known about the prevalence of chronic kidney disease (CKD) during the coronavirus disease 2019 (COVID-19) pandemic, as well as the pandemics’ impact on CKD diagnosis. We aimed to investigate the long-term trends in CKD prevalence throughout the pre- and early pandemic periods in adults using a nationwide serial survey from South Korea.

Methods

We used data from 108,152 Korean adults from 2007 to 2020 obtained from a representative longitudinal serial study. We defined CKD as a condition when the participant’s estimated glomerular filtration rate was <60 mL/min/1.73 m², one-time spot proteinuria was ≥1+ on a urinary dipstick test according to recent guidelines, or previous diagnosis of CKD. We examined the overall trends in the prevalence of CKD during the study period and the impact of the early pandemic on the prevalence of CKD.

Results

Among the included adults (n=80,010), the overall national prevalence of CKD was 6.2%. The trend slope gradually increased from 2007 to 2019, however, there was a sudden decrease in 2020 (2007–2010, 5.1% [95% confidence interval (CI), 4.7–5.5]; 2017–2019, 7.1% [95% CI, 6.6–7.6]; pandemic period, 6.5% [95% CI, 5.7–7.3]; and β_diff, -0.19; 95% CI, -0.24–-0.13). The prevalence of CKD among younger adults and those with poor medical utilization significantly decreased during the early pandemic.

Conclusion

This study was the first large-scale study to investigate the longitudinal prevalence of CKD from 2007 to 2020. Further research is needed to fully understand the exact causes for this decline and to identify healthcare policy strategies for preventing and managing CKD.