Group based trajectory model demonstrating persistently high acute care utilization for SLE (group 3, N=1,242, 3.1%), moderate acute care utilization (group 2, N=9,020, 22.3%) and infrequent acute care utilization (group 1, N=30,119, 74.6%) among individuals with prevalent SLE enrolled in Medicaid (N=40,381). Estimate represented by straight line; dashed lines are the 95% Confidence Intervals.