Mental illness and injury often occur, which makes people very afraid of such mentally disabled patients. But not every person with mental disability has a hurtful behavior. In fact, mental disability Levels 3 and 4 are not very aggressive, but Level 2 and Level 1 are dangerous. The following list 123 website introduces the criteria for the identification of mental disability. There are several levels of mental disability (a total of four levels).
I. Definition of mental disability

Mental disability refers to a mental patient who has not been cured for more than one year, and at the same time, it causes a certain degree of obstacles to the family and society’s due functions.
Mental disability can be caused by the following mental illnesses: (1) schizophrenia; (2) emotional and reactive mental disorders; (3) mental disorders caused by organic and physical diseases of the brain; (4) caused by psychoactive substances Mental disorders; (5) mental disorders in children and adolescents; (6) other mental disorders.
Second, there are several levels of mental disability

How many levels of mental disability are there? There are four levels of mental disability, the most severe being level one
Mental Disability Identification Criteria: People with mental disorders over the age of 18 (inclusive) according to the World Health Organization Disability Assessment Scale II (WHO-DAS II) score and the following adaptive behavior performance, and those under 18 years of age based on the adaptive behavior Performance, the mental disability is divided into four levels.
Level of mental disability:
The WHO-DASⅡ value ≥ 116 points, adapting to severe behavioral disorders; life can not take care of themselves at all, ignoring their basic physical and psychological requirements. Can’t engage with people, can’t work, and can’t learn new things. Requires comprehensive and extensive support from the environment, long-term life, and full supervision by others.
Mental Disability Level 2:
The WHO-DAS Ⅱ value is between 106 and 115 points, and it adapts to severe behavioral disorders. Most of the lives can not take care of themselves, basically do not interact with people, only simple interaction with the caregiver, can understand the simple instructions of the caregiver, and have certain learning ability. Can perform simple labor under supervision. Be able to express one’s basic needs, occasionally passively participate in social activities; need extensive support from the environment, and most of the life still needs the care of others. The suspect in the 2017 Wuhan Wuchang Railway Station homicide was a mental secondary disability.
Mental Disability Level 3:
The value of WHO-DAS Ⅱ is between 96 and 105 points, and moderate behavioral obstacles to adaptation. It can not completely take care of themselves in life, can communicate with people simply, and can express their emotions. Able to engage in simple labor independently and learn new things, but the learning ability is significantly worse than ordinary people. Passive participation in social activities, occasionally can actively participate in social activities; the environment needs to provide partial support, that is, the required support services are regular, short-term needs, and some life needs to be taken care of by others.
Mental Disability Level 4:
The value of WHO-DAS Ⅱ is between 52 and 95 points, and mild behavioral disorders of adaptive behavior. Basic self-care, but the self-care ability is worse than ordinary people, and sometimes personal hygiene is ignored. Able to communicate with others, to express their emotions, to have a poor ability to understand the emotions of others, to be able to engage in general work, and to learn new things slightly worse than ordinary people; occasionally, the environment needs support, and in general, life does not need to be taken care of .
3. Identification standards for mental disability

The mental disability assessment standard states that for those who have suffered from the above-mentioned mental illness for more than one year and have not recovered, the “operational assessment criteria for the classification of mental disability” should be used to assess the level of mental disability:
(1) Severe (level 1): Three or more of the five items are rated as 2 points.
(2) Moderate (secondary): One or two of the five scores are rated as 2 points.
(3) Mild (Level 3): Two or more of the five items are rated as 1 point. The list is as follows:
Social function assessment items are normal or have mild abnormalities.
Personal life self-care ability 0 points 1 point 2 points
Family life function performance 0 1 2
Care and responsibility for the family 0 1 2
Occupational work ability 0 1 2
Social activity ability 0 1 2
”Note”: There is no mental disability, and the total score of five items is 0 or 1.
Examination method of mental disability
The “operating assessment criteria for the classification of mental disability”, that is, the assessment criteria for mental disability, were used for inspection. All scores, except for talking with insiders, should be combined with observations of patients and necessary conversational queries to determine five scores.
Guidance: (talk to insiders)
The following five questions are the evaluation of patients’ social functions. Please answer according to his or her situation in the past month in combination with the comparison before the illness:
1. Self-care ability in personal life
This condition assesses the personal living and cooking situation of the patient in the past month, such as whether to rest on time, personal hygiene habits (such as washing the face, bathing, haircutting, shaving), dressing, neat dressing, hygiene in the residence, active meals, and two meals.
0 points — similar to before the illness, or occasionally minor problems.
1 point-there are indeed functional defects. The need for urgency or assistance has placed a burden on others.
2 points — severe functional defect. Most or all of the daily cooking needs to be taken care of by others, which places a great burden on others.
2. Performance of family life functions
This condition assesses whether the patient can do what he or she should do at least in the daily life of the family in the past month. For example, eating with family members, sharing some housework, watching TV with family members, doing sanitation, participating in family affairs discussions, repairing household items, and necessary financial support for families.
0 points —– It is almost the same as before the disease, or there are only slight abnormalities.
1 point-there are indeed functional defects. Failure to fulfill obligations, or to sit at home for at least two hours a day. Everything is passive.
2 points — severe functional defect. Few involved in family activities and chores.
3. Care and responsibility for the family
This article assesses whether patients have close feelings and responsibilities towards their spouse, parents, children or living relatives within the past month, whether they can interact with each other, exchange opinions, emotionally or lifely care and support . Do you care about your child’s upbringing, your family members’ progress and future, and your family’s future development and arrangements? The unmarried patients should also be aware of their attitude toward mate selection.
0 points-almost the same as before the disease, or only slightly abnormal.
1 point-there are indeed functional defects. There is little communication and concern between husband and wife or other family members, and lack of care for children. Lack of concern for family arrangements.
2 points — severe functional defect. Quarrel with family often or ignore anyone at home. Never care about children. No consideration is given to the future of the family. Unmarried people have an incomprehensible attitude towards mate selection.
4. Occupational work ability
This article assesses whether the level of vocational skills (referring to incumbent staff) or academic ability (referring to students) or housework (referring to those who had no occupation before illness, have been suspended from school or retired) before the illness has decreased in the past month. Whether to work according to the routine, commute to work on time, study at school on time, whether the housework has been affected by mental illness.
0 points —– no exceptions, or only minor problems.
1 point-there are indeed functional defects. Can’t commute on time. Occupational work has been downgraded, and academic performance or the level of housework has fallen. It also includes those who are unemployed due to mental illness, sick leave and school leave, and the patient can resume work or study, which is yet to be arranged.
2 points — severe functional defect. Can’t work and study because of obvious symptoms of psychosis, can’t do housework.
5. Social activity ability
This article in the mental disability evaluation standard assesses the situation in which the patient has not interacted with or participated in social activities in the past month. Including: contacts and contacts with colleagues, classmates, relatives and friends, neighbors, and people who need to be in contact with life and work but are not necessarily familiar (such as car ticket salespersons, store salespersons). Take the initiative to visit relatives and friends, take the initiative to shop, shop, go to entertainment and other activities.
0 points —– It is almost the same as before the disease, or there are only slight abnormalities.
1 point —– do not actively contact others, do not take the initiative to go out, but after repeated persuasion and encouragement, they can still contact and participate.
2 points — Serious social withdrawal, staying alone all day, refusing to associate with others, refusing to participate in any social activities, persuasion is invalid.