Table 4.

Inter-rater reliability of video evaluation

Primary outcome (PET-MBI total score)
	Variance σs 2 of the subject effect	Variance σr 2 of the rater effect		Variance σE 2 of the error	Intraclass correlation coefficient (Fleiss’ ICC)		Lower limit of the 95% CI
Session 1	742.81	1.47		8.42	0.99		0.98
Session 2	732.19	3.65		7.67	0.99		0.97
Secondary outcome (PET-MBI, mean κ coefficient, mean agreement rate)
	Session 1				Session 2
	κw	κ	POw	PO	κw	κ	POw	PO
Personal Hygiene	0.77	0.61	0.92	0.71	0.79	0.64	0.93	0.74
Self-bathing	0.80	0.70	0.94	0.81	0.74	0.64	0.92	0.75
Feeding	0.90	0.83	0.97	0.88	0.86	0.80	0.96	0.86
Using the Toilet	0.84	0.74	0.94	0.79	0.82	0.71	0.93	0.77
Stair Climbing	0.89	0.83	0.97	0.90	0.88	0.82	0.97	0.89
Getting dressed	0.87	0.69	0.94	0.75	0.84	0.63	0.93	0.70
Bowel Control	0.93	0.86	0.97	0.90	0.90	0.84	0.96	0.88
Bladder Control	0.94	0.89	0.97	0.92	0.93	0.89	0.97	0.92
Chair/Bed Transfer	0.85	0.77	0.95	0.82	0.86	0.78	0.95	0.84
Ambulation	0.91	0.74	0.97	0.79	0.95	0.79	0.98	0.82

κ _w Weighted κ coefficient (linear weights), κ κ coefficient, P _Ow Weighted agreement rate (linear weights), P _O Agreement rate