Table 3.

Test-retest reliability: PPIUS 3-day average scores in stable patients ¹ week 2 to week 3 (n = 34) ²

PPIUS score	Mean (SD) Week 2	Mean (SD) Week 3	Difference3(SD)	T-value	P-value	Spearman’s r4	ICC5
	OTE-Patient
3-day Average Score	2.0 (0.91)	2.1 (0.94)	0.05 (0.294)	1.04	0.3043	0.89***	0.95
	OTE-Clinician
3-day Average Score	2.0 (0.90)	2.1 (0.93)	0.06 (0.290)	1.13	0.2677	0.89***	0.95

¹ Evaluated in stable patients defined as scores of -1, 0, or 1 by the OTE-Patient.

² Patients who have average scores at both weeks.

³ Week 3 average score – Week 2 average.

⁴ Spearman rank order correlations; * p < 0.05; **p < 0.001; ***p < 0.0001.

⁵ Intra-class correlation coefficient.