Medication quality and quality of life in the elderly, a cohort study

Table 5 Medication appropriateness and quality of life

Group	*EQ-5D index* *at study start*			*EQ-5D index* *at 6 months*			*EQ-5D index* *at 12 months*
	Mean	Median	n=	Mean	Median	n=	Mean	Median	n=
A (lowest MAI score)	0.58	0.73	47	0.59	0.69	34	0.57	0.73	33
B (medium MAI score)	0.51	0.66	44	0.50	0.60	32	0.43	0.62	32
C (highest MAI score)	0.33	0.39	46	0.32	0.41	32	0.37	0.37	34
	p = 0.001			p = 0.001			p = 0.013

Statistical analyses were done using Jonckheere-Terpstra trend test.
A higher MAI score equals worse medication quality.
A higher EQ-5D index represents better quality of life (range 0 - 1, though negative values are possible and represents status "worse than death").