level of influence	Continuity of injury	Degree of injury	Contents
(a time-point of report)	Continuity of injury	Degree of injury	Contents
Level 0	-	-	There were some errors and failures of drug medicine and medical device, however, which were not performed for patients.
Level 1	none	-	There was no actual harm (there could not be denied to affect some influences to the patients).
Level 2	Temporarily	Mild	There was no medical treatment and cares (enhancement of patient-observation, mild changes of vital sign, necessity of medical examination to confirm a patient safety).
Level 3a	Temporarily	Moderate	There needed to perform simple care and medical treatment (disinfection, wet cloth, skin suture, medication of painkiller).
Level 3b	Temporarily	Severe	There needed to perform rich care and medical treatment (severe changes of vital sign, necessity of respirator, surgery, extended duration of hospitalization, admission of outpatients, bone fractures).
Level 4a	Permanent	Mild to moderate	Permanent disorders and after effects have not remained, however, it was not accompanied by significant functional disorders and cosmetic problems.
Level 4b	Permanent	Moderate to severe	Permanent disorders and after effects remained, however, there was accompanied by significant functional disorders and cosmetic problems.
Level 5	Death	-	Death (except for natural course of primary disease).
Others	-	-	-