diff --git a/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java b/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java
index 8b83654..64fce4f 100644
--- a/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java
+++ b/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java
@@ -1449,9 +1449,9 @@ public class PatientsQuery extends BaseQuery implements IConvertToNativeQuery {
 
         if (StringUtils.isNotEmpty(oRiskFactor)) {
             if (null != c1) {
-                c1 = c1.and("oRiskFactor").exists(false);
+                c1 = c1.and("oRiskFactor").exists(true);
             } else {
-                c1 = Criteria.where("oRiskFactor").exists(false);
+                c1 = Criteria.where("oRiskFactor").exists(true);
             }
         }