Social predictors of depression
Negative social life events

Evidence for the association between negative life events and depression comes largely from case studies and studies that compare the frequency of these events in depressed individuals to rates in people who are representative of the larger population. Negative life events are often reported by the depressed, with up to 80% of cases of major depression are preceded by some major life event, and symptoms tend to occur within one month of the event if a diagnosis of major depression is made. This high frequency of negative events is also seen relative to representative samples of the non-depressed population, with studies often showing the depressed to have experienced twice as much of these negative experiences. In addition to this, depressed individuals are more likely to have experienced negative life events preceding their symptoms compared to other mental health issues like schizophrenia and bipolar disorder.
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