Table 4.

Comparison of different methods to assess the individual stability over time of an eGFR decline from baseline until FU 3.

PROVALID (n = 860)	≥ 30% decline from baseline	≥ 5 ml/min/1.73m2/year	Confirmed reduction ≥ 30% in 2 consecutive FUs
FU 2, n (%)	29 (39.7)	169 (82.0)	4 (13.8)
FU 3, n (%)	73 (100)	206 (100)	29 (100)
FU 4, n (%)	44 (60.3)	119 (57.8)	20 (69.0)
FU 5, n (%)	33 (45.2)	80 (38.8)	16 (55.2)

FU follow up.

Bold numbers: number of individuals (%) persistently meeting the definition of eGFR decline over time.