Table 3.

Classification performances of chronic kidney disease stage based on the final models

		Predicted
		Normal or Stage 1	Stage 2	Stage 3
${\mathit{Model}}_{final,pre}$
Observed	Normal or Stage 1	77	32	0
	Stage 2	16	101	19
	Stage 3	0	17	49
Accuracy: 73%
Weighted average precision: 74%
Weighted average recall: 73%
${\mathit{Model}}_{final,0d}$
Observed	Normal or Stage 1	74	35	0
	Stage 2	12	108	16
	Stage 3	0	14	52
Accuracy: 75%
Weighted average precision: 76%
Weighted average recall: 75%
${\mathit{Model}}_{final,1d}$
Observed	Normal or Stage 1	81	28	0
	Stage 2	15	108	13
	Stage 3	0	18	48
Accuracy: 76%
Weighted average precision: 77%
Weighted average recall: 76%
${\mathit{Model}}_{final,2d}$
Observed	Normal or Stage 1	84	25	0
	Stage 2	14	105	17
	Stage 3	1	16	49
Accuracy: 77%
Weighted average precision: 77%
Weighted average recall: 77%
${\mathit{Model}}_{final,3d}$
Observed	Normal or Stage 1	83	26	0
	Stage 2	13	109	14
	Stage 3	1	13	52
Accuracy: 78%
Weighted average precision: 79%
Weighted average recall: 78%
${\mathit{Model}}_{final,4d}$
Observed	Normal or Stage 1	84	25	0
	Stage 2	16	110	10
	Stage 3	1	12	53
Accuracy: 79%
Weighted average precision: 80%
Weighted average recall: 79%
${\mathit{Model}}_{final,5d}$
Observed	Normal or Stage 1	81	28	0
	Stage 2	18	105	13
	Stage 3	1	16	49
Accuracy: 76%
Weighted average precision: 76%
Weighted average recall: 76%
${\mathit{Model}}_{final,1m}$
Observed	Normal or Stage 1	84	24	0
	Stage 2	14	107	15
	Stage 3	1	14	51
Accuracy: 73%
Weighted average precision: 74%
Weighted average recall: 73%

Normal or stage 1, estimated glomerular filtration rate (eGFR) ≥ 90 mL/min/1.73 m²; stage 2, eGFR 60–89 mL/min/1.73 m²; stage 3, eGFR < 60 mL/min/1.73 m². d day, m month