1.

Depressive disorder and certain other mental disorders

2.

Alcoholism and other forms of substance abuse

3.

Suicidal ideation, talk, preparation; certain religious ideas

4.

Prior suicide attempts

5.

Lethal methods

6.

Social withdrawal, isolation, living alone, loss of support

7.

Hopelessness, feeling trapped, cognitive rigidity

8.

Impulsivity and risk-taking behavior

9.

Being an older white American male

10.

Modeling, suicide in the family, genetics

11.

Economic or work problems; certain occupations

12.

Marital problems, family pathology

13.

Dramatic changes in mood

14.

Anxiety

15.

Stress and stressful events

16.

Anger, aggression, irritability

17.

Psychosis

18.

Physical illness

19.

Sleep problems

Information from: Crump et al 2014; Ferrari et al., 2014; Rudd et al., 2006; Papolos et al., 2005.