diff --git a/platform-operate-api/src/main/java/com/lyms/platform/operate/web/result/RiskPatientsResult.java b/platform-operate-api/src/main/java/com/lyms/platform/operate/web/result/RiskPatientsResult.java
index 840ec45..74d6411 100644
--- a/platform-operate-api/src/main/java/com/lyms/platform/operate/web/result/RiskPatientsResult.java
+++ b/platform-operate-api/src/main/java/com/lyms/platform/operate/web/result/RiskPatientsResult.java
@@ -130,7 +130,7 @@ public class RiskPatientsResult implements IBasicResultConvert<RiskPatientsResul
     }
 
     public String getrFactor() {
-        if(null==rFactor){
+        if(org.apache.commons.lang.StringUtils.isEmpty(rFactor)){
             return SPIT;
         }
         return rFactor;