Table 4

Weighted-κ and percentage agreement between patient and ICG and between patient and HCP by POS and POS-S item

POS Item	Agreement patient vs ICG		Agreement patient vs HCP
POS Item	Weighted-κ	Percentage agreement	Weighted-κ	Percentage agreement
Pain	0.578	68.8	0.308	47.4
Breathlessness	0.353	51	0.307	48.3
Weakness	0.137	34.7	−0.044	22.8
Nausea	0.446	61.4	0.122	43.4
Vomiting	0.537	77.8	0.099	59.3
Appetite	0.445	56.9	0.125	31.6
Constipation	0.45	43.4	0.218	43.4
Mouth problems	0.288	52.3	0.083	43.8
Drowsiness	0.289	44.9	0.088	29.6
Immobility	0.369	51	0.268	44.4
Anxious/worried	0.167	34	0.125	31.4
Friends/family anxious/worried	0.076	40	0.202	40.9
Standard of help to relatives	0.059	29.4	0.105	31.7
Information given	0.187	50	0.037	44.4
Standard of facilities	0.216	46.5	0.147	42.6
Share feelings	0.05	35.4	−0.034	31.1
Depression	0.062	24.4	−0.121	8
Time spent by staff	0.072	33.3	−0.026	17.9
Feel good about self	0.149	23.4	0.069	23.4
Time wasted on appointments	0.172	86.7	0.124	78.4
Personal Issues	0.364	57.1	0.2	50

HCP, healthcare professional; ICG, informal caregiver; POS, palliative outcome scale; POS-symptoms, POS-S.
Weighted-κ scores; >0.8: perfect agreement, 0.61–0.8: substantial agreement, 0.41–0.6: moderate agreement, 0.21–0.4: fair agreement, 0–0.2: slight agreement, <0: no agreement.