The prognosis of depression in late life versus mid-life: implications for the treatment of older adults

Extract

Depression in late life is extremely common. Of those aged 65 years or older, 2–5% have syndromal depression, but up to 20% of elderly people have depressive symptoms (Horwath et al., 2002). Both syndromal and subsyndromal depression carry a high risk of long-term complications and both are associated with elevated risks of morbidity and mortality (Penninx et al., 1999). Despite repeated alerts, depression is consistently under-recognized in acute medical settings, in nursing homes and in primary care (Volkers et al., 2004). For reasons that are inadequately understood, late-life depression seems to be under-treated to an even greater extent than depression in mid-life (Mackenzie et al., 1999). This issue is particularly important, given that effective and safe treatments for depression are available (Bartels et al., 2003), even though the evidence regarding maintenance therapies in older people is inconsistent (Geddes et al., 2003; Wilson et al., 2003). Recent evidence suggests that a package of care can improve the care of older depressed patients in primary care settings (Bruce et al., 2004) and in nursing homes (Ciechanowski et al., 2004). This has led to the development of several clinical guidelines specifically for late-life depression (Baldwin et al., 2003; Charney et al., 2003; Lebowitzet al., 1997). Yet, in the recent National Institute of Clinical Excellence (NICE) guidelines for the management of depression in primary and secondary care, no distinction was made between early, middle and late-life depression (Malone and Mitchell, 2005).