Translation and validation of the Dutch Pittsburgh Fatigability Scale for older adults

BMC Geriatrics

Table 4 Mean baseline and retest scores and reliability properties of the Dutch PFS (n = 50)

PFS	Baseline mean (SD)	Retest mean (SD)	ICC^a (95% CI)	SEM	SEM (%)^b	SDC	SDC (%)^b
Physical subscale	30 (10)	31 (10)	0.80 (0.68; 0.88)	4	9%	12	24%
Mental subscale	24 (14)	26 (13)	0.81 (0.68; 0.89)	6	12%	16	33%

Abbreviations: ICC Intra-class Correlation Coefficient; PFS Pittsburgh Fatigability Scale; SD Standard Deviation; SDC Smallest Detectable Change; SEM Standard Error of Measurement; MIC Minimal Important Change
a. A 2 way mixed effect model was used.
b. SEM (%) and SDC (%) are expressed in percentages of the scale range (0–50); percentages are rounded off.

ISSN: 1471-2318