INS and diabetes mellitus: The median total count of phagocytosed beads after operation was 7351 (IQR:2012–20,808) in the Short-term insulin (DM), 9764 (IQR:5446–19,605) in the Long-term insulin (DM) and 9869 (IQR:7767–19,560) in the Non-diabetic group, which were not significantly differed with those of 7177 (IQR:3528–10,219) in the No insulin (DM) group (p = 0.84,0.43 and 0.021, respectively).