Measuring needs-based quality of life and self-perceived health inequity in patients with multimorbidity: investigating psychometric measurement properties of the MultiMorbidity Questionnaire (MMQ) using primarily Rasch models

Journal of Patient-Reported Outcomes

Table 7 Structure and scale-score profiles of the MultiMorbidity Questionnaire (MMQ)

Concept	Scale	Number of items	Scale-score profile
MultiMorbidity Questionnaire 1 (MMQ1)
Needs-based quality of life
	Physical ability	6	0–18
	Worries	6	0–18
	Limitations in everyday life	10	0–30
	My social life	6	0–18
	Self-image	6	0–18
	Personal finances	3	0–9
MultiMorbidity Questionnaire 2 (MMQ2)
Self-perceived inequity^a
	Experience of being stigmatised	5	0–15
	Experience of not being seen and heard	4	0–12
	Experience of insufficient understanding of the burden of disease	3	0–9
	Experience of powerlessness	5	0–15

^aThe relevant items of the MMQ2 are repeated in encounters with their (1) general practitioner (GP), (2) staff at their GP’ surgery, (3) other healthcare professionals, (4) local authorities, (5) family, friends and others