Acknowledgement
The authors thank all the investigators and clinical research coordinators for their consistent and dedicated contributions to this long-term cohort study.
References
- Stevens PE, Levin A; Kidney Disease: Improving Global Outcomes Chronic Kidney Disease Guideline Development Work Group Members. Evaluation and management of chronic kidney disease: synopsis of the kidney disease: improving global outcomes 2012 clinical practice guideline. Ann Intern Med 2013;158(11):825-830. https://doi.org/10.7326/0003-4819-158-11-201306040-00007
- GBD Chronic Kidney Disease Collaboration. Global, regional, and national burden of chronic kidney disease, 1990-2017: a systematic analysis for the Global Burden of Disease Study 2017. Lancet 2020;395(10225):709-733. https://doi.org/10.1016/s0140-6736(20)30045-3
- Kang YU, Bae EH, Ma SK, Kim SW. Determinants and burden of chronic kidney disease in a high-risk population in Korea: results from a cross-sectional study. Korean J Intern Med 2016;31(5):920-929. https://doi.org/10.3904/kjim.2014.243
- Kim S, Lim CS, Han DC, Kim GS, Chin HJ, Kim SJ, et al. The prevalence of chronic kidney disease (CKD) and the associated factors to CKD in urban Korea: a population-based cross-sectional epidemiologic study. J Korean Med Sci 2009;24(Suppl 1):S11-S21. https://doi.org/10.3346/jkms.2009.24.S1.S11
- Ji E, Kim YS. Prevalence of chronic kidney disease defined by using CKD-EPI equation and albumin-to-creatinine ratio in the Korean adult population. Korean J Intern Med 2016;31(6):1120-1130. https://doi.org/10.3904/kjim.2015.193
- Jin DC, Yun SR, Lee SW, Han SW, Kim W, Park J, et al. Lessons from 30 years' data of Korean end-stage renal disease registry, 1985-2015. Kidney Res Clin Pract 2015;34(3):132-139. https://doi.org/10.1016/j.krcp.2015.08.004
- Oh KH, Park SK, Park HC, Chin HJ, Chae DW, Choi KH, et al. KNOWCKD (KoreaN cohort study for Outcome in patients With Chronic Kidney Disease): design and methods. BMC Nephrol 2014;15:80. https://doi.org/10.1186/1471-2369-15-80
- Kang E, Han M, Kim H, Park SK, Lee J, Hyun YY, et al. Baseline general characteristics of the Korean chronic kidney disease: report from the KoreaN Cohort Study for Outcomes in Patients With Chronic Kidney Disease (KNOW-CKD). J Korean Med Sci 2017;32(2):221-230. https://doi.org/10.3346/jkms.2017.32.2.221
- Feldman HI, Appel LJ, Chertow GM, Cifelli D, Cizman B, Daugirdas J, et al. The chronic renal insufficiency cohort (CRIC) study: design and methods. J Am Soc Nephrol 2003;14(7 Suppl 2):S148-S153. https://doi.org/10.1097/01.ASN.0000070149.78399.CE
- Lash JP, Go AS, Appel LJ, He J, Ojo A, Rahman M, et al. Chronic Renal Insufficiency Cohort (CRIC) Study: baseline characteristics and associations with kidney function. Clin J Am Soc Nephrol 2009;4(8):1302-1311. https://doi.org/10.2215/CJN.00070109
- Imai E, Matsuo S, Makino H, Watanabe T, Akizawa T, Nitta K, et al. Chronic Kidney Disease Japan Cohort (CKD-JAC) study: design and methods. Hypertens Res 2008;31(6):1101-1107. https://doi.org/10.1291/hypres.31.1101
- Levey AS, Stevens LA, Schmid CH, Zhang YL, Castro AF 3rd, Feldman HI, et al. A new equation to estimate glomerular filtration rate. Ann Intern Med 2009;150(9):604-612. https://doi.org/10.7326/0003-4819-150-9-200905050-00006
- Oh KH, Kang M, Kang E, Ryu H, Han SH, Yoo TH, et al. The KNOWCKD Study: what we have learned about chronic kidney diseases. Kidney Res Clin Pract 2020;39(2):121-135. https://doi.org/10.23876/j.krcp.20.042
- Ryu H, Kim J, Kang E, Hong Y, Chae DW, Choi KH, et al. Incidence of cardiovascular events and mortality in Korean patients with chronic kidney disease. Sci Rep 2021;11(1):1131. https://doi.org/10.1038/s41598-020-80877-y
- Norton JM, Moxey-Mims MM, Eggers PW, Narva AS, Star RA, Kimmel PL, et al. Social determinants of racial disparities in CKD. J Am Soc Nephrol 2016;27(9):2576-2595. https://doi.org/10.1681/asn.2016010027
- Kang E, Lee J, Kim HJ, Han M, Kim SW, Lee KB, et al. The association between socioeconomic disparities and left ventricular hypertrophy in chronic kidney disease: results from the KoreaN Cohort Study for Outcomes in Patients With Chronic Kidney Disease (KNOW-CKD). BMC Nephrol 2018;19(1):203. https://doi.org/10.1186/s12882-018-1005-3
- Lee MJ, Park JT, Park KS, Kwon YE, Han SH, Kang SW, et al. Normal body mass index with central obesity has increased risk of coronary artery calcification in Korean patients with chronic kidney disease. Kidney Int 2016;90(6):1368-1376. https://doi.org/10.1016/j.kint.2016.09.011
- Lee S, Kang S, Joo YS, Lee C, Nam KH, Yun HR, et al. Smoking, smoking cessation, and progression of chronic kidney disease: results from KNOW-CKD study. Nicotine Tob Res 2021;23(1):92-98. https://doi.org/10.1093/ntr/ntaa071
- Kang M, Kang E, Ryu H, Hong Y, Han SS, Park SK, et al. Measured sodium excretion is associated with CKD progression: results from the KNOW-CKD study. Nephrol Dial Transplant 2021;36(3):512-519. https://doi.org/10.1093/ndt/gfaa107
- Joo YS, Koh H, Nam KH, Lee S, Kim J, Lee C, et al. Alcohol consumption and progression of chronic kidney disease: results from the Korean cohort study for outcome in patients with chronic kidney disease. Mayo Clin Proc 2020;95(2):293-305. https://doi.org/10.1016/j.mayocp.2019.06.014
- Sung SA, Hyun YY, Lee KB, Park HC, Chung W, Kim YH, et al. Sleep duration and health-related quality of life in predialysis CKD. Clin J Am Soc Nephrol 2018;13(6):858-865. https://doi.org/10.2215/cjn.11351017
- Lee JY, Park JT, Joo YS, Lee C, Yun HR, Yoo TH, et al. Association of blood pressure with the progression of CKD: findings from KNOW-CKD study. Am J Kidney Dis 2021;78(2):236-245. https://doi.org/10.1053/j.ajkd.2020.12.013
- Muntner P, Newsome B, Kramer H, Peralta CA, Kim Y, Jacobs DR Jr, et al. Racial differences in the incidence of chronic kidney disease. Clin J Am Soc Nephrol 2012;7(1):101-107. https://doi.org/10.2215/CJN.06450611
- Mehrotra R, Kermah D, Fried L, Adler S, Norris K. Racial differences in mortality among those with CKD. J Am Soc Nephrol 2008;19(7):1403-1410. https://doi.org/10.1681/ASN.2007070747
- Dienemann T, Fujii N, Orlandi P, Nessel L, Furth SL, Hoy WE, et al. International Network of Chronic Kidney Disease cohort studies (iNET-CKD): a global network of chronic kidney disease cohorts. BMC Nephrol 2016;17(1):121. https://doi.org/10.1186/s12882-016-0335-2
- Alencar de Pinho N, Levin A, Fukagawa M, Hoy WE, Pecoits-Filho R, Reichel H, et al. Considerable international variation exists in blood pressure control and antihypertensive prescription patterns in chronic kidney disease. Kidney Int 2019;96(4):983-994. https://doi.org/10.1016/j.kint.2019.04.032
- Orlandi PF, Huang J, Fukagawa M, Hoy W, Jha V, Oh KH, et al. A collaborative, individual-level analysis compared longitudinal outcomes across the International Network of Chronic Kidney Disease (iNETCKD) cohorts. Kidney Int 2019;96(5):1217-1233. https://doi.org/10.1016/j.kint.2019.07.024