Suicide is a significant public health problem for older adults. Identification of protective factors associated with reduced risk is important. The authors examined the association of positive affect and suicide ideation in 462 primary care patients ages 65 and older. Positive affect distinguished suicide ideators from nonideators, after controlling for age, gender, depression, negative affect, illness burden, activity, sociability, cognitive functioning, and physical functioning. There was a trend toward age moderation of this relationship. Clinical and theoretical formulations of late-life suicide should consider the role of positive affect, including the possibility that its protective effects grow more pronounced with age. Keywords positive affect; suicide ideation; primary care; older adults Depression and suicide are significant public health problems for adults ages 65 and older (Alexopoulos, 2005;, who constitute 13% of the general population of the United States but account for 18% of all suicide deaths (National Center for Health Statistics, 2004). Mental disorders, particularly depression, amplify risk for suicide ideation (Bartels et al., 2002;Kuo, Gallo, & Eaton, 2004) and suicide (Beautrais, 2002;Conwell et al., 2000;Harwood, Hawton, Hope, & Jacoby, 2001;Tsoh et al., 2005;Waern et al., 2002) in older adults. Most treatments designed to reduce suicide risk understandably emphasize reduction of negative affect (Dieserud, Roysamb, Ekeberg, & Kraft, 2001;Schotte & Clum, 1987;Szanto et al., 2001;Townsend et al., 2001)
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Author ManuscriptAuthor Manuscript hopelessness-a potent risk factor for suicide (Brown, Beck, Steer, & Grisham, 2000) and correlate of suicide ideation (Uncapher, Gallagher-Thompson, Osgood, & Bongar, 1998)-is driven more by low levels of positive affect than by high levels of negative affect (Duberstein, Conner, Conwell, & Cox, 2001;Young et al., 1996). In this article, we examine the relative contributions of positive and negative affect to suicide ideation in older primary care patients.Trait positive affect may psychologically energize older adults, helping them envision a positive future and bear, if not thrive, in the context of aging's chronic strains such as caregiving, bereavement, illness, and functional impairment (Hirsch et al., 2007;Pressman & Cohen, 2005;Stewart, Craig, MacPherson, & Alexander, 2001;Zautra, Maxwell, & Reich, 1989). The strength of the inverse relationship between positive affect and suicide ideation may also increase across the life span. Older individuals are more likely than younger adults to focus on and monitor internal cognitive and emotional states, leading to better intrapersonal and interpersonal functioning and general coping (Labouvie-Vief, Devoe, & Bulka, 1989). As adults age, they may become "cognitively liberated," less rigid and stereotypical in their thinking, more adaptive and flexible in their coping abilities, and more tolerant of conflict within the self and with others (Carstensen, Fung, & Char...