· Previous suicide attempt(s)
· Family history of suicide
· History of mental disorders, particularly clinical depression
· History of alcohol and substance abuse
· Feelings of hopelessness
· Impulsive or aggressive tendencies
· Local epidemics of suicide
· Isolation or a feeling of being cut off from other people
· Barriers to accessing mental health treatment
· Loss (relational, social, work, or financial)
· Physical illness
· Easy access to lethal methods
· Unwillingness to seek help because of the stigma attached to mental health and substance abuse disorders or to suicidal thoughts
http://www.cdc.gov/ViolencePrevention/suicide/riskprotectivefactors.html