The effect of depressive symptoms on social support one year following traumatic injury.

•Depression and social support are leading psychosocial predictors of recovery from injury.•Existing theory is vague on the effects of these factors over the course of recovery.•Level I Trauma Center patients were followed one-year following injury.•Depression predicted social support, rather than initial support preventing later depression.•Initial depression differentially influenced different types of social support over one-year.