Database: thrombosis_prediction
Question: What is the ratio of outpatient to inpatient followed up treatment among all the 'SLE' diagnosed patient?
SQL: SELECT SUM(CASE WHEN Admission = '+' THEN 1.0 ELSE 0 END) / SUM(CASE WHEN Admission = '-' THEN 1 ELSE 0 END) FROM Patient WHERE Diagnosis = 'SLE'