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. 2025 May 20;14(1):e1–e133. doi: 10.1016/j.kisu.2024.12.001

Appendix Table 11.

Staging of CKD, stratified by hospital nephrology unit

CKD stage 2017
2018
Independent Nonindependent Unknown Total Independent Nonindependent Unknown Total
Stage 1 6006 (0.73) 450 (0.78) 463 (0.61) 6919 (0.72) 5471 (0.82) 364 (0.83) 547 (0.87) 6382 (0.83)
Stage 2 10,125 (1.23) 439 (0.76) 861 (1.14) 11,425 (1.19) 9386 (1.41) 509 (1.16) 844 (1.35) 10,739 (1.39)
Stage 3 30,680 (3.73) 1256 (2.18) 1772 (2.34) 33,708 (3.52) 28,980 (4.36) 1644 (3.74) 2731 (4.36) 33,355 (4.32)
Stage 4 20,193 (2.45) 1059 (1.84) 1122 (1.48) 22,374 (2.34) 18,985 (2.86) 1046 (2.38) 1363 (2.17) 21,394 (2.77)
Stage 5 72,837 (8.84) 2442 (4.24) 2644 (3.49) 77,923 (8.14) 71,052 (10.69) 2849 (6.48) 3421 (5.46) 77,322 (10.02)
Unknown 683,665 (83.02) 51,986 (90.20) 68,905 (90.94) 804,556 (84.08) 530,883 (79.86) 37,559 (85.42) 53,797 (85.80) 622,239 (80.66)
Total 823,506 (100) 57,632 (100) 75,767 (100) 956,905 (100) 664,757 (100) 43,971 (100) 62,703 (100) 771,431 (100)

CKD, chronic kidney disease.

Patients with missing data and/or controversial data for stage were not included in the analysis. 2017: 104 (0.01%); 2018: 194 (0.03%).

Data are expressed as n (%).