Table 1.

Information on kidney function during the two year period before cohort entry

Parameter	All patients (n=5,606)	Trajectory group
		Persistently low eGFR (Group 1, n=3,520)	Progressive eGFR loss (Group 2, n=1,379)	Accelerated eGFR loss (Group 3, n=535)	Catastrophic eGFR loss (Group 4, n=172)
eGFR slope +	10.0 (5.8, 16.6)	7.2 (4.5, 10.5)	16.0 (11.6, 20.9)	31.7 (23.8, 40.2)	47.7 (29.1, 64.6)
eGFR slope+	13.5±13.1	7.8±4.7	16.3±7.6	32.3±13.4	50.7±30.4
SCr measures, median ++
All	20 (12, 34)	18 (12, 30)	24 (11, 46)	24 (12, 44)	25 (8, 42)
Outpatient	12 (7, 18)	13 (7, 19)	8 (5, 14)	6 (3, 10)	6 (3, 10)
Inpatient	6 (0, 17)	4 (0, 12)	9 (1, 23)	14 (3, 32)	15 (2, 33)
Quarters with >=1 SCr measure ++	5.4±2	5.6 ±2.1	5.5±1.8	4.8±1.8	4.1±1.9

Values shown are median (25th, 75th percentile) or mean ± SD.

Abbreviations: SCr, serum creatinine; eGFR estimated glomerular filtration rate

⁺Based on all inpatient and outpatient serum creatinine measures during the two year period before dialysis initiation

⁺⁺ During the two year period (8 quarters) before dialysis initiation