Table 1.

Main characteristics of the studies included in the meta-analysis

References	Country	Design	Sample size		Follow up (months)	Outcome
			Statin	Placebo
Abisi et al. [8]	UK	Cohort	21	61	1	MMP-9 levels
Evans et al. [15]	UK	Cohort	7	10	1	MMP-9 levels
Hurks et al. [16]	Netherlands	Cohort	135	81	1	MMP-9 levels
Karrowni et al. [2]	US	Cohort	136	75	12	Growth rate
Mosorin et al. [5]	Finland	Cohort	34	87	42	Growth rate
O’Donell et al. [17]	US	Cohort	25,997	11,941	36	Aneurysm size
Raux et al. [18]	France	Cohort	120	46	24	Aneurysm size
Stein et al. [19]	US	Cohort	368	1184	NR	Aneurysm size and growth rate
Sukhija et al. [20]	US	Cohort	75	55	24	Aneurysm size
Wilson et al. [21]	UK	Cohort	17	46	NR	MMP-9 levels