In this summary, the author discusses demographic predictors, statistical data on e.g. affective disorder, alcohol abuse, age, sex, marital status; clinical predictors e.g. ideation, hopelessness, personal crisis, & biological predictors e.g. higher mean cortisol level. Clinical factors seem to be more relevant to individual suicide prediction than demographic factors, but generally clinical factors & psychological tests & scales are unreliable as are biological factors. (GW)