Consumption of black tea ( odds ratio [ OR ] 1.88 , 95 % confidence interval [ 95 % CI ] 1.03-3 .41 ) and coffee ( OR 1.57 , 95 % CI 0.95-2 .61 ) , but not green tea , was associated with an increased risk of SLE , while alcohol use ( OR 0.33 , 95 % CI 0.20-0 .55 ) was associated with a decreased risk of SLE .