Table 1.

Quality assessment of the 14 included articles until 2017 which evaluated the role of brain SPECT and/or fMRI in cognitive dysfunction among systemic lupus eryhematosus patients

First author (reference number)	Randomized	Blinded	Withdrawals	Jadad score
Driver et al. (22)	Uncertain	Yes	Uncertain	1
Zhang et al. (24)	Yes	Yes	Uncertain	2
DiFrancesco et al. (12)	Uncertain	Uncertain	Uncertain	0
Oh DH et al.(23)	Uncertain	Uncertain	Uncertain	0
Shapira-Lichter et al. (14)	Yes	Uncertain	Yes	2
Waterloo et al. (25)	Uncertain	Uncertain	Uncertain	0
Fitzgibbon et al. (13)	Uncertain	Uncertain	Uncertain	0
Nishimura et al. (21)	Uncertain	Uncertain	Yes	1
Ichinose et al. (20)	Uncertain	Uncertain	Uncertain	0
Sarbu et al (19)	Uncertain	Yes	Yes	2
Zimmermann et al. (18)	Uncertain	Uncertain	Uncertain	0
Cesar et al. (17)	Uncertain	Uncertain	Uncertain	0
Piga et al. (16)	Yes	Yes	Yes	3
Al-Obaidi et al. (15)	Uncertain	Yes	Uncertain	1