Aspects of Mental Health and Aging Pages 45–52 By Amanda Leggett and Steven H. Zarit Prevention of Mental Disorders in Older Adults: Recent Innovations and Future Directions As the world’s population of older adults rapidly increases, more and more in this cohort will seek mental health care. Prevention is a promising approach to lower overall disease burden. I n the field of mental health, prevention efforts have the ability to decrease healthcare costs, reduce mental illness incidence, and enhance individuals’ well-being and functioning. The National Institute of Mental Health (NIMH) lists in its Strategic Objective 2.3 the goal “to develop and test novel interventions that are targeted at pre-symptomatic or prodromal stages of illness, [and] are designed to preempt syndrome development . . .” (NIMH, 2014). In some disciplines such as public health, prevention programs have been widely discussed and implemented, but innovations for preventing mental disorders lag behind, particularly for older adults, where the focus has been on sickness, disability, and disease treatment. Traditionally, preventive efforts have focused on children and adolescents to promote positive health trajectories early in life (National Research Council and Institute of Medicine, 2009). However, mental health problems are common in older adults and associated with risk and protective factors that differ from those active in early life. Some factors, such as education and early-life socioeconomic advantage, cannot be modified in late life; however, more salient late-life factors, such as social support, sleep disturbance, and activity levels, are malleable in the later years. As the global population of older adults expands, an increasingly large number will seek mental health care. We also know that current treatments are only partly successful. For example, approximately 20 percent to 30 percent of a person’s years lived with disability due to depression can be avoided by using existing treatments, and treatments do not prevent the full burden of anxiety disorders (Andrews et al., 2004). Prevention efforts to stop mental health problems before they start is a promising approach to lower overall disease burden. This article presents encouraging findings from existing preventive interventions in pharmacotherapy, psychotherapy, and psychosocial efforts. Much of this work addresses depressive and anxiety disorders, and interrelated areas of health, such as sleeping patterns. We conclude by providing suggestions for future directions of research and practice in geriatric mental health prevention. Copyright © 2014 American Society on Aging; all rights reserved. This article may not be duplicated, reprinted or distributed in any form without written permission from the publisher: American Society on Aging, 575 Market St., Suite 2100, San Francisco, CA 94105-2869; e-mail: info@asaging.org. For information about ASA’s publications visit www.asaging.org/publications. For information about ASA membership visit www.asaging.org/join. Fall 2014 • Vol. 38 . No. 3 | 45 GE NER ATIO NS – Journal of the American Society on Aging Pages 45–52 First, we will review prevention terminology. As opposed to treatment, prevention targets individuals before the development of a disorder. Gordon (1983) labeled preventive interventions as universal, selected, and indicated, depending upon risk level of the targeted population. Indicated interventions focus on individuals who already show preliminary signs or subsyndromal symptoms of a disorder, but not severe enough for diagnosis; selected interventions target those at high risk; and, universal programs are aimed at an entire population. The Institute of Medicine adopted Gordon’s terminology and added a category of more general mental health promotion (National Research Council and Institute of Medicine, 2009). We highlight some recent preventive interventions that fall into each of these categories, starting in the domain of pharmacological prevention. management sessions for two years, or until a new major depressive disorder episode. Individuals who received two years of paroxetine were less likely to develop a new episode of major depressive disorder. Adjusting for the psychotherapy effect, individuals receiving the placebo had a 2.4 times greater relative risk of recurrence than individuals on paroxetine. Robinson and colleagues (2008) assigned three randomized groups of adults, ages 50 to 90, who had suffered a stroke in the past three months, to escitalopram (brand name: Lexapro), problem-solving therapy, or placebo in a twelvemonth trial. In that time period, 22.4 percent of individuals on a placebo developed depression, compared to only 8.5 percent of individuals taking escitalopram and 11.9 percent of individuals receiving problem-solving therapy. At six months following escitalopram discontinuation, participants who had received escitalopram Pharmacological Prevention exhibited significantly worse levels of depressive Positive effects of antidepressants for the symptoms than the problem-solving therapy or treatment of depression are well-documented, placebo group (Mikami et al., 2011). In other even among the oldest old (Trappler and Cohen, work, Fournier and colleagues (2010) found the 1998). While the majority of older adults recover benefit of an antidepressant over a placebo rose from depression, many will relapse, but current with increasing severity of depression. The or prior antidepressant use has been associated antidepressant had only a small effect for individwith a better prognosis (Denihan et al., 2000). uals with none to moderate symptoms, suggestProphylactic antidepressant use has been trialled ing greater use for treatment than prevention. primarily for treatment maintenance and relapse These results show that antidepressants may prevention in older adults recently recovered have some preventive benefit for relapse of defrom a major depressive disorder episode. pression in older adults, but results are mixed. There are also ethical concerns regarding prescription of Mental health problems are common in older antidepressants or other adults, and associated with risk and protective medications to individuals factors that differ from those found earlier in life. without a diagnosed disorder. Medications such as antideReynolds et al. (2006) examined adults ages pressants and benzodiazepines (brand names: 70 and older with major depressive disorder Valium, Zanax, Halcion, etc.) tend to be less who responded to combined psychotherapy effective for mild symptoms, are associated with and paroxetine (brand name: Paxil) treatment. a number of side effects (e.g., fall risk, cognitive Patients were randomized into four groups reimpairment), add to a potential medication ceiving paroxetine or a placebo, combined with cascade effect in elders, and many older adults either interpersonal psychotherapy or clinicalprefer non-pharmacological treatment (Fournier 46 | Fall 2014 • Vol. 38 . No. 3 Copyright © 2014 American Society on Aging; all rights reserved. This article may not be duplicated, reprinted or distributed in any form without written permission from the publisher: American Society on Aging, 575 Market St., Suite 2100, San Francisco, CA 94105-2869; e-mail: info@asaging.org. For information about ASA’s publications visit www.asaging.org/publications. For information about ASA membership visit www.asaging.org/join. Aspects of Mental Health and Aging Pages 45–52 et al., 2010; Gum et al., 2006; Landi et al., 2005; Verdoux, Lagnaoui, and Begaud, 2005). While pharmacotherapy may be called for in some high-risk cases, or where it is helpful for individuals who had past depressive episodes, it should not be the initial choice for primary prevention efforts. Psychological Intervention Baby boomers are high users of psychotherapy and thus demand may grow for non-pharmacological prevention. Few researchers have considered psychotherapy as a preventive intervention compared to treatment, however, several studies show promising results (see Lee et al., 2012, for a review). Below, we discuss a few recent efforts predominantly focusing on cognitive behavioral therapy and problem-solving therapy. questionnaire in which participants are asked to answer yes or no questions in reference to how they felt over the past week) (Yesavage et al., 1982) declined significantly over time (baseline to six months post-treatment) and were significantly better in comparison with the control group. Over the six months of treatment and follow-up, no participants in the Coping with Stress course developed major depressive disorder (out of n=20), while two participants in the control group did (out of n=23). However, the intervention group did not differ significantly from the control group on two other depression symptom scales (The Center for Epidemiologic Studies Depression Scale and Dysfunctional Attitudes Scale for Medically Ill Elders) (Koenig et al., 1994; Radloff, 1977). Problem-solving therapy Problem-solving therapy is a behavioral approach Cognitive behavioral therapy that aims to reduce depression by targeting inMost psychotherapy studies use a cognitive accurate problem appraisals and teaching skills behavioral framework, which targets dysfuncto solve these problems adaptively. Rovner and tional thoughts and levels of activity, aiming to restructure one’s thoughts and ultimately change colleagues (Rovner et al., 2007; Rovner and Casten, 2008) employed a problem-solving therabehavior. The most commonly used form is py selective intervention (six hour-long sessions Lewinsohn’s “Coping with Depression” course, which is a psycho-educational form of cognitive across eight weeks) that targeted individuals with macular degeneration. Given that macular behavior therapy (Lewinsohn et al., 1984). A degeneration would modify an individual’s therapist serves as instructor for a group of capability to perform some activities, problemparticipants, teaching useful skills to manage solving therapy presents a creative behavioral depressive feelings such as scheduling and completing pleasant activities, developing social solution to address these visual challenges and potentially prevent depression. skills, relaxation, and techniques for restrucAt two months, the experimental group had turing one’s maladaptive thought processing. half the incidence rate of depression compared Konnert, Dobson, and Stelmach (2009) trialled an adapted version of this course, geared to the control group (11.6 percent versus 23.2 percent). The researchers did not find differspecifically for prevention and called “Coping with Stress,” in nursing home residents (thirteen ences in incidence at six months; however, activities were better maintained in the experisessions over seven weeks). The course was mental group. This intervention may be effecmodified to provide relevant examples and tive in older adults with other chronic diseases pleasant events that would be appropriate for older adults in nursing homes. Participants were where both depression and disability are common. Taken together, with findings from assisted, where needed, to write in their treatRobinson and colleagues (2008) problem-solving ment manuals and to get to the sessions. Scores therapy and escitalopram comparison, results on the Geriatric Depression Scale (a thirty-item Copyright © 2014 American Society on Aging; all rights reserved. This article may not be duplicated, reprinted or distributed in any form without written permission from the publisher: American Society on Aging, 575 Market St., Suite 2100, San Francisco, CA 94105-2869; e-mail: info@asaging.org. For information about ASA’s publications visit www.asaging.org/publications. For information about ASA membership visit www.asaging.org/join. Fall 2014 • Vol. 38 . No. 3 | 47 GE NER ATIO NS – Journal of the American Society on Aging Pages 45–52 als’ symptoms spontaneously remit without treatment. If significant symptoms lasted after an initial three months, participants were randomized to either a usual care control group or cognitive-behavioral therapy bibliotherapy (a self-help book version of the Coping with Innovative and multi-component Depression course) intervention. A nurse first psychotherapy approaches Internet-based Interventions. In a three-group visited to provide information about anxiety and depression and basic advice on coping skills. In randomized control trial, Spek et al. (2008) a second visit, the Coping with Depression (and compared group participants in the ten-week Anxiety) course was provided and the nurse Coping with Depression course and an eightmade several follow-up visits or calls to monitor session Internet-based, cognitive-behavioral therapy self-help intervention with individuals in progress. If participants were still symptomatic three months later, they would progress to a a wait-list control. Participants were adults ages seven-session problem-solving therapy. 50 and older, with sub-threshold symptoms of Finally, symptomatic participants at three depression. While both interventions had a large improvement effect size, the differences between months later would be referred to their primary the Coping with Depression course group and the care physician for antidepressant treatment. At wait-list control were negligible. While 62 percent the end of any period, if participants’ symptom of individuals in the Internet cognitive-behavioral scores were below threshold, they would enter or remain in a watchful waiting period. The twelveintervention were below the threshold indicator for depression on the Beck Depression Inventory month incidence of anxiety and depressive disorders was 0.12 in the stepped-care group and (a self-report scale that measures symptoms of 0.24 in the control group. Participants in this depression) (Beck, Steer, and Brown, 1996), only 45 percent of the Coping with Depression course study were ages 75 and older, suggesting that a stepped-care intervention was tolerable for and 38 percent of the wait-list participants were individuals in late-life and primary care was an below threshold one year following initiation of effective setting for recruitment and intervention. treatment. This reflects the natural course of Sleep Problems Prevention. Sleep disturimprovement over time as well as the potential bance and mood are strongly associated, and as efficacy and desirability of Internet-based circadian rhythms and sleep patterns change interventions. with age, these associations are pivotal in older Stepped Care. Van’t Veer-Tazelaar and adults (Buysse, 2004). Targeting the treatment colleagues (2009) provide an example of a stepped-care program for older adults in primary of late-life insomnia, Germain and colleagues (2006) conducted a Brief Behavioral Treatment care that reduced the odds of developing an of Insomnia intervention, including one fortyanxiety or depressive disorder by more than five minute session and a short booster session half and showed long-term effects. Steppedcare interventions start with no intervention but two weeks later. The Brief Behavioral Treatment includes progress to more involved interventions if an education about sleep regulation, what influindividual is not improving. This method aims ences sleep, and behaviors that can inhibit or to make the best use of clinical and economical promote sleep. In particular, participants were resources by only giving intervention as needed. Van’t Veer-Tazelaar and colleagues’ stepped-care asked to follow four instructions for the fourweek intervention: spend only the amount of program consists of four three-month periods, starting with watchful waiting as many individu- time in bed one expects to sleep; wake up at the suggest that problem-solving therapy provided over only a few weeks may have long-term effects in preventing depression, particularly in individuals with a medical comorbidity. 48 | Fall 2014 • Vol. 38 . No. 3 Copyright © 2014 American Society on Aging; all rights reserved. This article may not be duplicated, reprinted or distributed in any form without written permission from the publisher: American Society on Aging, 575 Market St., Suite 2100, San Francisco, CA 94105-2869; e-mail: info@asaging.org. For information about ASA’s publications visit www.asaging.org/publications. For information about ASA membership visit www.asaging.org/join. Pages 45–52 Aspects of Mental Health and Aging same time each day; only go to bed when sleepy; video on aging successfully, or an intervention and get out of bed if not sleeping. Individuals called “Looking for Meaning,” which consisted with “unstable” or untreated psychiatric diagno- of twelve, two-hour sessions in which particises were excluded from the study, and so the pants performed various life-review activities mean Hamilton Rating Scale for Depression and (discussing life experiences, sensory recall, or Anxiety (Hamilton, 1959, 1960) scores at baseline other creative activities) on various topics such were well below accepted cut scores. Compared as former dwellings or smells from the past. to a control group, participants receiving the Pot et al. reported a significant improvement in Brief Behavioral Treatment of Insomnia intervention improved in their number While pharmacotherapy may be called for in of nighttime awakenings after falling some high-risk cases, it should not be the asleep; sleep latency, quality, and efficiency; and, in symptoms of anxiety initial choice for primary prevention efforts. and depression. More research is needed to see whether sleep interventions can reduce depression scores in the intervention compared incidence of mental health disorders or be to the control group, which translated into a useful in multi-component interventions. large-effect size for the between group difference in pre- and post-assessment (Δd=0.58). Other Prevention Programs Both the intervention and control groups Other prevention programs, such as psychosodeclined in anxiety, so there was not a significant cial or exercise interventions, are less standardbetween-group change-effect. A meta-analysis ized than pharmacotherapy and psychotherapy found similar effects of reminiscence and interventions, yet have an opportunity to address life-review programs in reducing depressive specific risk factors in a way that may be more symptoms in individuals with mild to moderate tolerable and less stigmatizing to older adults. symptomatology (d=0.37) (Bohlmeijer, Smit, and Most psychosocial studies are targeting mental Cuijpers, 2003). health promotion in samples of communitydwelling older adults, as opposed to indicated Exercise or selective prevention for a specific disorder. While physical exercise long has been associated These programs provide some promising efforts with improvements in mood, few interventions that may be replicated, modified, or incorpohave focused on prevention and promotion, as rated in a multifaceted way in indicated or opposed to treatment of clinical disorders. Baker selected randomized control trials. We consiet al. (2007) randomly assigned retirement der some recent and promising examples (see community residents having none to mild Forsman, Schierenbeck, and Wahlbeck, 2011, for depressive symptoms to a ten-week exercise further review). program (approximately one-hour sessions, three days a week) of high-intensity resistance Reminiscence training, moderate-intensity aerobic training, Pot and colleagues (2010) trialled an indicated and balance training, or, alternately, to a wait-list preventive intervention of “life review.” Particicontrol group. Since depressive symptoms were pants ranged from ages 50 to 90 and had subalready low, there were no significant differences syndromal symptoms (symptoms that are not between treatment and control groups, but parsevere enough for an actual depression diagnoticipants who had more depressive symptoms sis) of depression. Participants were randomized at baseline improved most. Rosenberg et al. to a control group that watched an educational (2010) examined a twelve-week Nintendo Wii Copyright © 2014 American Society on Aging; all rights reserved. This article may not be duplicated, reprinted or distributed in any form without written permission from the publisher: American Society on Aging, 575 Market St., Suite 2100, San Francisco, CA 94105-2869; e-mail: info@asaging.org. For information about ASA’s publications visit www.asaging.org/publications. For information about ASA membership visit www.asaging.org/join. Fall 2014 • Vol. 38 . No. 3 | 49 GE NER ATIO NS – Journal of the American Society on Aging Pages 45–52 Sports “exergame” intervention in older adults with sub-syndromal depression (three thirtyfive-minute sessions a week; no control group). Participants’ depressive symptoms significantly declined with the reduction maintained at a twenty-four-week follow-up and 37 percent of participants’ symptom scores declined by 50 percent or more. Anxiety scores declined across the intervention, but not significantly. or no symptoms at the initial time point, it is difficult to detect effects over the short term, and given the uncertain risk of increased depression or anxiety in samples, it would be necessary to have a very large sample to detect differences in new cases of clinical disorders or even increases in sub-syndromal symptoms. Thus, indicated trials targeting specific risk and protective factors in older adults with beginning signs of disorders may be most effective. Besides the The biological underpinnings of mental disorders need for more selective and are only beginning to be understood. indicated prevention trials in geriatric mental health, other These studies highlight the opportunity, yet new directions for innovation in research and also the paucity and lack of development, in practice may be proposed. prevention studies. Many of the described It is important to take into account the prevention studies only discussed improvement disabilities, mobility, and cognitive capabilities, in symptoms or a comparison between an inter- in addition to the resiliencies, wisdom, and vention and control group over time. When symp- strengths of the older population in preventive toms are low or absent, however, the goal cannot designs. In line with the growth of patientbe to reduce depression or anxiety, but rather to centered outcomes research, new initiatives demonstrate reduced risk or lower incidence of that consider specific preferences and needs of new disorder over time. older adults relating to mental health care may be particularly beneficial to prevention work. Conclusion and Future Directions To further increase participation, it might be The above studies provide an overview of the helpful to work through primary care physipotential for prevention and also challenges and cians, or through social services used by older limitations of this work. Pharmacotherapy has adults with depressive or anxiety symptoms, shown efficacy in preventing the recurrence of and consider how programs can reach rural depression, yet antidepressants and benzodiazelders or those who cannot pay for mental epines are associated with a number of negative health services. side effects for older adults. Psychotherapy has Innovations in technology may help to reach been shown to reduce the incidence of depresolder adults with mobility, transportation, or sive and anxiety disorders; but therapy sessions economic difficulties. Internet-based prevention are lengthy and may require older adults to programs have a number of benefits in that there travel to a therapist. Finally, psychosocial is no need for appointment scheduling and prevention has shown success in promoting travel, they allow individuals to work at their mental health, however, more indicated and own pace, they may be shared globally, are selective studies are needed to show whether inexpensive, and are reusable (in contrast to psychosocial prevention can reduce incidence a therapist’s time—or a pill). Interventions of disorder in at-risk individuals. powered through mobile phones, tablet computThe greatest challenge with selected and ers, or applications such as Skype may be a parindicative prevention trials is the need for an ticularly fertile area for growth (Muñoz et al., adequate follow-up period. If everyone has low 2010). However, as Internet programs do not 50 | Fall 2014 • Vol. 38 . No. 3 Copyright © 2014 American Society on Aging; all rights reserved. This article may not be duplicated, reprinted or distributed in any form without written permission from the publisher: American Society on Aging, 575 Market St., Suite 2100, San Francisco, CA 94105-2869; e-mail: info@asaging.org. For information about ASA’s publications visit www.asaging.org/publications. For information about ASA membership visit www.asaging.org/join. Aspects of Mental Health and Aging Pages 45–52 offer crisis assistance, the ethics of these interventions must be considered (Reynolds, 2009). A best-case scenario for prevention research would be the ability to target the etiology of mental disorder. The biological underpinnings of disorders are beginning to be understood. For example, the stress hormone cortisol has been associated with depression and melatonin levels are related to insomnia (Burke et al., 2005; Wade et al., 2007). With increasing knowledge, biomarkers may help better target individuals for prevention so resources are not used on individuals who, while at risk, are not likely to develop a disorder. Ultimately, biomarkers may help individualize programs and make them more efficient, and might be measured when assessing response to an intervention. In conclusion, the prevention of geriatric mental disorders is a field laden with challenges, yet ripe for growth, holding potential for great health and economic payoffs. This brief overview of the domains of geriatric prevention can provide clinicians with strategies for helping older adults at risk for disorders, and with examples of successful interventions from which researchers can build new ideas and trials. Disorders can be stopped before they begin and, as our population ages, prevention work promises to have increasing salience. Amanda Leggett, Ph.D., is a National Institute of Mental Health Geriatric Mental Health Services postdoctoral research fellow in the Department of Psychiatry, at the University of Michigan Medical School in Ann Arbor, Michigan. Steven H. Zarit, Ph.D., is distinguished professor, and head of the Department of Human Development and Family Studies, at Pennsylvania State University, in University Park, Pennsylvania. References Andrews, G., et al. 2004. “Utilising Survey Data to Inform Public Policy: Comparison of the Costeffectiveness of Treatment of Ten Mental Disorders.” British Journal of Psychiatry 184(6): 526–33. 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