SLE	Systemic Lupus Erythematosus
CCI	Charlson Comorbidity Index
OR	Odds Ratio
CI	Confidence Interval
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
PROSPERO	International Prospective Register of Systematic Reviews
ACR	American College of Rheumatology
SLICC	Systemic Lupus International Collaborating Clinics
NOS	Newcastle–Ottawa Scale
HR	Hazard Ratio
SD	Standard Deviation