The prognosis of depression in old age

A naturalistic 1 year follow-up study of the elderly patients with depression visiting the psychiatric outpatient services for the first time

This naturalistic study aimed to assess treatment dropout pattern, course of symptoms and outcome of depression among the elderly. This study aimed to assess the course and outcome of depression and treatment dropout pattern of patients with depression in old age. Additionally an attempt was made to study the predictors of outcome and dropout. 140 elderly patients (≥ 60 years) were followed up at 6 months and 1 year to evaluate the status of their depression and treatment pattern. Out of the 140 patients recruited at the baseline, 58 (41.4%) patients did not return to the clinic after the first visit. 65.7%, 75% and 90% patients dropped out from the clinic by 3 months, 6 months and 1 year after registration with the clinic. At 1 year, about two-third (65%) of patients achieved improvement in symptoms to the extent of 81-100% and only 10% did not show any improvement throughout the study period. To conclude present study suggests that large proportion of the elderly patients with depression attending a mental health service dropout of treatment. Despite the high dropouts rate, more than three-fourth of the patients improve to the extent of 81-100% and very few patients have worsening of symptoms or persistent symptoms.

Diagnosis of depression in elderly patients

Depression in old age is a pathological process, not a normal reaction to growing older. The majority of people cope with ageing, and many feel happy and fulfilled. However, there is a bias among health professionals and the community in general to accept lower functioning and more symptoms in older people (Alexopoulos, 1992). Depression tends to be denied by the current generation of elderly people, many of whom were raised in an atmosphere where showing feelings was discouraged, and this adds to diagnostic difficulties. Comorbid medical conditions, the tendency of patients to somatise, cognitive deterioration, and multiple life events, often of loss (e.g. bereavement, retirement, moving to smaller housing), all further complicate the diagnostic process.

Psychotic major depression in older people: a systematic review

OBJECTIVE

This study aimed to systematically review available evidence relevant to the following issues: (1) whether psychotic major depression (PMD) in older people differs in overall severity from non-PMD, besides the presence of psychotic symptoms; (2) whether it constitutes a distinct clinical entity from non-PMD; and (3) whether it differs from PMD in younger adults.

DESIGN

A computerized MEDLINE, PsycINFO and the entire Cochrane Library search has been performed in June 2013 for prospective controlled studies investigating PMD features in older people.

RESULTS

Thirty-five relevant studies were identified. PMD in older people compared with non-PMD has been shown to present with overall more severe depressive symptomatology, more psychomotor disturbance, more guilt feelings, more depressive episodes with psychosis, worse prognosis, more severe executive dysfunction associated with frontal lobe atrophy, and lower serum dopamine β-hydroxylase activity. No differences in the efficacy of an antidepressant plus antipsychotic combination versus antidepressant monotherapy in the acute treatment as well as in the maintenance treatment were found. PMD in older patients is characterized by more somatic complaints and delusions of hypochondriacaland impending disaster content and by a lower comorbidity with anxiety disorders compared with PMD in younger adults.

CONCLUSIONS

Psychotic major depression in older people is associated with higher severity in most clinically important key features than in non-PMD. However, available evidence is still insufficient for the conclusive elucidation of its nosological status. Finally, the differences between PMD in older and younger patients can be attributed to biological and psychosocial changes of old age.

A pilot study of depression among older people in Rawalpindi, Pakistan

BACKGROUND

Depression is common among elderly in developed countries and it is more pronounced in institutional settings. In Pakistan there is a lack of empirical data on depression among this segment of the population particularly with reference to their living arrangements.The objectives of the present study are to report the magnitude of depression among elderly having two different residential arrangements and to examine the association of depression and its established demographic factors.

FINDINGS

Data were collected from 141 respondents. 108 were community residents (m = 57 and f = 51) and 33 were living in the care homes (m = 29 and f = 4).Prevalence of depression as assessed by Geriatric Depression Scale (GDS) among community and Care Homes (CHs) participants was 31.5 percent and 60.6 percent, respectively.On Centre of Epidemiological Studies Depression Scale (CES-D), 42.6 percent of the community and 69.7 percent of the CH respondents were deemed depressed. Before adjusting for any other potential risk factors the odds of being depressed was significantly increased if the study participants were living in CH, relatively older, female, not currently married, had low educational level, had lower Mini Mental State Examination (MMSE) scores, and reported lower perceived emotional and practical support. In a partially adjusted logistic regression model an increased risk of depression was not confounded by any of the above mentioned risk factors.However, the risk associated was not significant when it was adjusted for social support.

CONCLUSIONS

The findings of the current study are consistent with previous research and throws light on the dire need for interventions to address mental health needs of Pakistani elderly.Implications for improving the mental health status of elderly are also presented.

Prognosis of depression in the elderly

Objective: To ascertain the outcome of depression and factors associated with outcome over a minimum followup period of 12 months in patients referred to an Old Age Psychiatry Service.

Method: A retrospective study was performed. All depressed patients assessed by the service between January 1989 and December 1990 were followed up. This included patients seen on domiciliary and consultationliaison visits. Follow up data included information on physical, psychological, cognitive and social parameters using standardised scales where appropriate. Outcome of depression was assessed using a six point scale to enable comparison with other studies.

Results: 86 patients with a primary diagnosis of depression were seen in 1989 and 1990. At follow up, 37% were dead. 50% of patients alive at follow up were well and 7% were demented. Patients seen on domiciliary visits had the best outcome, and those with physical illness or cognitive impairment at presentation the worst outcome.

Conclusion: The association between physical status and outcome highlights the need for close monitoring of both physical and mental status of depressed elderly patients.

Stressful life events, perceived stress, and 12-month course of geriatric depression: direct effects and moderation by the 5-HTTLPR and COMT Val158Met polymorphisms

Although the relation between stressful life events (SLEs) and risk of major depressive disorder is well established, important questions remain about the effects of stress on the course of geriatric depression. Our objectives were (1) to examine how baseline stress and change in stress is associated with course of geriatric depression and (2) to test whether polymorphisms of serotonin transporter (5-HTTLPR) and catechol-O-methyltransferase (COMT Val158Met) genes moderate this relation. Two-hundred and sixteen depressed subjects aged 60 years or older were categorized by remission status (Montgomery-Asberg depression rating scale≤6) at 6 and 12 months. At 6 months, greater baseline numbers of self-reported negative and total SLEs and greater baseline perceived stress severity were associated with lower odds of remission. At 12 months, only baseline perceived stress predicted remission. When we examined change in stress, 12-month decrease in negative SLEs and level of perceived stress were associated with improved odds of 12-month remission. When genotype data were included, COMT Val158Met genotype did not influence these relations. However, when compared with 5-HTTLPR L/L homozygotes, S allele carriers with greater baseline numbers of negative SLEs and with greater decrease in negative SLEs were more likely to remit at 12 months. This study demonstrates that baseline SLEs and perceived stress severity may influence the 12-month course of geriatric depression. Moreover, changes in these stress measures over time correlate with depression outcomes. 5-HTTLPR S carriers appear to be more susceptible to both the effects of enduring stress and the benefit of interval stress reduction.

Apolipoprotein E isoform-dependent effects on anxiety and cognition in female TR mice

Compared with apoE3, apoE4 is associated with increased risk to develop age-related cognitive decline, particularly in women. In this study, young, middle-aged, and old female mice expressing human apoE under control of the mouse apoE promoter were behaviorally analyzed. Cognitive performance in the water maze decreased with age in all mice. Compared with apoE2 and apoE3 mice, apoE4 mice showed better cognitive performance and higher measures of anxiety than apoE2 and apoE3 mice. Measures of anxiety correlated with cognitive performance in the water maze and passive avoidance tests and might have contributed to the enhanced cognitive performance of the apoE4 mice. ApoE4 mice showed better water maze learning and higher cortical apoE levels than mice expressing apoE4 in astrocytes under control of the GFAP promoter. This was not seen in apoE3 mice. There were no line differences in either genotype in spatial memory retention in the probe trial following the last day of hidden platform training. Thus, the promoter used to express apoE4 critically modulates its effects on brain function.

Incomplete response in late-life depression: getting to remission

Incomplete response in the treatmen tof late-life depression is a large public health challenge: at least 50% of older people fail to respond adequately to first-line antidepressant pharmacotherapy, even under optimal treatment conditions. Treatment-resistant late-life depression (TRLLD) increases risk for early relapse, undermines adherence to treatment for coexisting medical disorders, amplifies disability and cognitive impairment, imposes greater burden on family caregivers, and increases the risk for early mortality, including suicide, Gettinq to and sustaininq remission is the primary goal of treatment yet there is a paucity of empirical data on how best to manage TRLLD. A pilot study by our group on aripiprazole augmentation in 24 incomplete responders to sequential SSRI and SRNI pharmacotherapy found that 50% remitted over 12 weeks with the addition of aripiprazole, and that remission was sustained in all participants during 6 months of continuation treatment In addition to controlled assessment, evidence is needed to support personalized treatment by testing the moderating role of clinical (eg, comorbid anxiety, medical burden, and executive impairment) and genetic (eg, selected polymorphisms in serotonin, norepinephrine, and dopamine genes) variables, while also controlling for variability in drug exposure. Such studies may advance us toward the goal of personalized treatment in late-life depression.

Residential status and depression among Korean elderly people: a comparison between residents of nursing home and those based in the community

The purposes of this study were: (i) to compare the extent of depression in the nursing home and community-dwelling elderly people, and (ii) to find the variables including residential status and other related variables explaining depression in Korea. Two sets of secondary data were combined and used to achieve the objectives of this study. One data set relating to elderly people in nursing homes was from a part of 2002 Kyunggi Long-term Care System Construction Study by Kyunggi Research Institute, Kyunggi province, Korea. The other data set for community-dwelling elderly people was from a part of 2001 National Long-term Care Study by Korea Institute for Health and Social Affairs. The data set for this study included 307 elderly people living in nursing homes and 166 elderly people living in the community. Depression was measured and determined using the geriatric depression scale-short form (GDS-SF) Korean version, with scores of 8 or higher to indicate possible depression. A total of 39.3%[95% confidence interval (CI); 32.1-46.9%] of the sample in the community elderly showed symptoms of depression, higher than the rate found in the nursing home elderly (24.0%) (95% CI; 19.5-29.2%). The mean (standard deviation) GDS-SF score for the elderly in the nursing home was 6.1 (3.4), and 7.4 (4.3) for elderly in the community, the difference being statistically significant [t (275.5) = -3.33; P < 001]. As a result of multiple logistic regression analysis, residential status has appeared as an important predictor after controlling other related variables. The adjusted odds ratio of depression associated with the nursing home residents in residential status, all other factors being equal, was 3.14 (95% CI; 1.30-7.58). Community-dwelling elderly people have higher odds of depression. These findings suggest that there is a need to provide adequate health-related care services for the elderly people in the community.

Religiosity of depressed elderly inpatients

OBJECTIVES

To determine the prevalence of religious practices and beliefs of depressed elderly Australian inpatients and their relationship to physical, social, and cognitive variables known to influence the prognosis of depression in the elderly. To compare the results obtained with those from similar North American studies.

METHODS AND PROCEDURES

Inpatients with a DSM-IV diagnosis of major depression were interviewed on admission to the psychogeriatric unit of a Melbourne geriatric centre. Information collected included patient demographics, intrinsic and extrinsic religiosity, cognitive function, severity of depression, number of chronic illnesses, physical function, and numbers and quality of social support. Pearson correlation and multivariate analysis using a standard regression model were used to examine relationships between the religious and other variables.

RESULTS

Of the 86 patients who completed the assessment, 25% attended church regularly and 37% prayed, meditated, or read the Bible, at least once a day. Just over half rarely or never engaged in such behaviours. Three out of every eight patients were 'intrinsically' religious. Religious patients expressed higher levels of social support and physically disabled patients were more likely to be religious.

CONCLUSIONS

Depressed elderly Australian inpatients are less religious than their North American counterparts. Nevertheless, religion remains important for a large minority of such individuals. Clinicians need to be aware that such individuals may turn to religion when depressed, especially to cope with the presence of physical disability.

Role of apolipoprotein E in anxiety

Anxiety is most common among Alzheimer's disease (AD) patients with an age at onset under age 65. Apolipoprotein E4 (apoE4) is a risk factor for developing AD at an earlier age and might contribute to this effect. In mice, apoE plays a role in the regulation of anxiety, which might involve histamine receptor-mediated signaling and steroidogenesis in the adrenal gland. In addition, human apoE isoforms have differential effects on anxiety in adult mice lacking apoE and probable AD patients. Compared to wild-type mice, mice lacking apoE and apoE4 mice showed pathological alterations in the central nucleus of the amygdala, which is involved in regulation of anxiety. ApoE4, but not mice lacking apoE, or apoE3 mice showed impaired dexamethasone suppression of plasma corticosterone. Understanding how apoE modulates measures of anxiety might help the developments of therapeutic targets to reduce or even prevent measures of anxiety in health and in dementing illnesses.

Neuroanatomical correlates of personality in the elderly

Extraversion and neuroticism are two important and frequently studied dimensions of human personality. They describe individual differences in emotional responding that are quite stable across the adult lifespan. Neuroimaging research has begun to provide evidence that neuroticism and extraversion have specific neuroanatomical correlates within the cerebral cortex and amygdala of young adults. However, these brain areas undergo alterations in size with aging, which may influence the nature of these personality factor-brain structure associations in the elderly. One study in the elderly demonstrated associations between perisylvian cortex structure and measures of self transcendence [Kaasinen, V., Maguire, R.P., Kurki, T., Bruck, A., Rinne, J.O., 2005. Mapping brain structure and personality in late adulthood. NeuroImage 24, 315-322], but the neuroanatomical correlates of extraversion and neuroticism, or other measures of the Five Factor Model of personality have not been explored. The purpose of the present study was to investigate the structural correlates of neuroticism and extraversion in healthy elderly subjects (n=29) using neuroanatomic measures of the cerebral cortex and amygdala. We observed that the thickness of specific lateral prefrontal cortex (PFC) regions, but not amygdala volume, correlates with measures of extraversion and neuroticism. The results suggest differences in the regional neuroanatomic correlates of specific personality traits with aging. We speculate that this relates to the influences of age-related structural changes in the PFC.

Late-onset major depression: clinical and treatment-response variability

OBJECTIVE

To explore clinical and treatment-response variability in late-onset vs early-onset non-bipolar, non-psychotic major depression.

METHODS

We grouped patients from a late-life depression treatment study according to illness-course characteristics: those with early-onset, recurrent depression (n = 59), late-onset, recurrent depression (n = 27), and late-onset, single-episode depression (n = 95). Early-onset was defined as having a first lifetime episode of major depression at age 59 or earlier; late-onset was defined as having a first episode of major depression at age 60 or later. We characterized the three groups of patients with respect to baseline demographic, neuropsychological, and clinical characteristics, use of augmentation pharmacotherapy to achieve response, and treatment outcomes.

RESULTS

Rates of response, remission, relapse, and termination were similar in all three groups; however, patients with late-onset, recurrent major depression took longer to respond to treatment than those with late-onset, single-episode depression (12 weeks vs 8 weeks) and had more cognitive and functional impairment. Additionally, patients with recurrent depression (whether early or late) were more likely to require pharmacotherapy augmentation to achieve response than patients with a single lifetime episode.

CONCLUSION

Late-onset, recurrent depression takes longer to respond to treatment than late-onset single-episode depression and is more strongly associated with cognitive and functional impairment. Further study of biological, neuropsychologic, and psychosocial correlates of late-onset, recurrent depression is needed.

One-year outcome of elderly inpatients with major depressive disorder treated with ECT and antidepressants

We report the acute response and outcome in 1-year follow-up of 51 elderly depressive inpatients with major depressive disorder treated with electroconvulsive therapy (ECT) (n = 30) and/or antidepressant therapy (n = 21). The patients were assessed at admission, at discharge, and after 1 year according to the Montgomery and Asberg Depression Rating Scale, the Beck Depression Inventory, and the Clinical Global Impression Scale. The acute response was good. Montgomery and Asberg Depression Rating Scale total scores diminished significantly during index hospitalization within both groups (from 31.6 +/- 8.5, to 8.1 +/- 6.0 in the ECT group and from 28.5 +/- 5.4 to 13.4 +/- 10.6 in the antidepressant group). The 1-year rehospitalization rate for the entire group, however, was 21 of 51 patients (41%), 13 of 30 patients (43%) in the ECT group, and 8 of 21 (38%) in the antidepressant group. Six of 13 patients in the ECT group and 1 of 8 patients in the antidepressant group were rehospitalized during the first month after discharge. The results suggest a good acute therapeutic response to both ECT and antidepressive therapy in elderly patients with MDD. The major finding in this study was the relatively high rehospitalization rate, which emphasizes the need for careful follow-up of the elderly patients who have recovered from a depressive episode.

Prognostic value of frontal functional neuroimaging in late-onset severe major depression

BACKGROUND

There is growing evidence of a relationship between frontal neuroimaging and neuropsychological abnormalities and the physiopathology and course of late-onset major depression.

AIMS

To assess acute antidepressant response in late-onset major depression in relation to baseline frontal perfusion ratios.

METHOD

A 99mTc HMPAO single photon emission computed tomographic brain scan was performed in medication-free patients with late-onset major depression, who were then included in a 12-week antidepressant treatment regimen. Logistic regression was used to define a predictive model of non-remission.

RESULTS

A total of 47 patients completed the study, 34 of whom were classed as remitters and 13 as non-remitters. The variable left anterior fronto-cerebellar perfusion ratio had a global predictive power of 87%. Analysing this variable together with the baseline variables age of onset and duration of index episode, the predictive power of the model rose to 94%.

CONCLUSIONS

Our study suggests that a specific frontal functioning could predict the acute antidepressant response in late-onset severe major depression.

Time Course of Response to Antidepressants in Late-Life Major Depression

In the treatment of depression, there is considerable interest in the time course of response and, in particular, the speed with which individuals recover from depressive episodes. Examination of the time course and speed of response is critical for assessing the usefulness of specific treatments. However, while this issue has received attention in mid-life adult populations, it has received little consideration in the context of late-life major depression. The synthesis of empirical reports indicates that, while older adults with depression seem to respond with the same speed as mid-life adults, several factors have consistently been associated with reduced speed of response to antidepressant treatment, including greater severity of depressive symptoms and co-occurring anxiety symptoms. Limited evidence suggests that sleep impairment and genetic factors (e.g. presence of the s allele of the serotonin transporter gene promoter region) may also be associated with reduced speed of response. Some factors have consistently been found to be unrelated to speed of response (demographic characteristics, nonpsychiatric physical illnesses) whereas other factors have only mixed evidence supporting any effect (psychosocial and other clinical factors). While there is little work available to date, some evidence suggests that time course and speed of response affect longer-term outcomes of depression pharmacotherapy; thus, older adults with more rapid versus slower patterns of response may differ in the types of maintenance treatment needed to avert additional depressive episodes. None of potential strategies for accelerating speed of response have been clearly shown to be effective in late-life depression. Future treatment studies for late-life depression should routinely consider not only overall efficacy of a given pharmacotherapy (i.e. total rate of response), but time course and speed of response. To this end, new investigations must be designed to overcome the methodological limitations of prior studies that have examined time course and they should include a range of potential covariates and outcomes of between-patient differences in speed of response. Better understanding of factors related to such differences may suggest new intervention strategies to accelerate response.

Older community residents with depression: long-term treatment with sertraline. Randomised, double-blind, placebo-controlled study

BACKGROUND

Despite a growing use of selective serotonin reuptake inhibitors in older people, only one trial has examined their prophylactic efficacy in people aged 65 years and over.

AIMS

To examine the efficacy of sertraline in preventing the recurrence of depression in older people living in the community.

METHOD

Participants were openly treated with sertraline and then randomised into a double-blind, placebo-controlled continuation/maintenance study of about 2 years duration. Drug dosage was maintained at levels that achieved remission.

RESULTS

No significant difference between the sertraline and placebo groups was found in the proportion of recurrences (-7.9%; 95% CI -28.06 to 12.23). Increased age and minor residual symptoms during the continuation phase were associated with recurrence.

CONCLUSIONS

Sertraline at therapeutic dosage does not provide significant protection against recurrence.

Long-term course and outcome of depression in later life

Depression in later life is usually a recurrent illness and often a chronic one, associated with increased health care utilization, amplification of the disability born of concurrent medical illness, decreased quality of life, increased risk for suicide, and cognitive impairment. The good news, however, is that maintenance treatments work and have a demonstrably positive impact on long-term illness course. Treatment response is especially variable, or brittle, in patients aged over 70; yet maintenance treatment with combined medication and psychotherapy is able to significantly reduce long-term treatment response variability, ensuring continued wellness. Further evaluation of cost-effectiveness is necessary in order to improve reimbursement for effective long-term treatment.

Follow-up study of depression in the elderly. Clinical and SPECT data

BACKGROUND

Imaging studies in depression of the elderly are often small and highly selective.

AIMS

To investigate a large group of elderly depressed patients in order to assess changes in clinical, imaging and neuropsychological variables at follow-up.

METHOD

Patients (n = 175, age range 65-91 years) with clinical depression were identified from consecutive local referrals. Clinical interviews, neuropsychological tests and SPECT scans were carried out at referral and at two-year follow-up.

RESULTS

Of 84 re-examined patients, 46.5% were well, 9.5% were ill, 33% partially recovered and 11% had developed dementia. Duration of illness before index assessment was the only factor to predict outcome. Thirty-nine patients could be scanned and followed up. There were no differences between patients with good or poor depressive outcome on SPECT. Ten clinically improved patients could be re-examined with SPECT. There were relative increases in right cingulate gyrus and right cerebellum at follow-up.

CONCLUSIONS

The patients group was comparable with other studies showing high levels of residual depressive symptoms. Activity changes in limbic cortex are implicated in depression of old age.

Depression and bipolar disorder: relationships to impaired fatty acid and phospholipid metabolism and to diabetes, cardiovascular disease, immunological abnormalities, cancer, ageing and osteoporosis. Possible candidate genes

Depression and bipolar disorder are two of the commonest illnesses in the developed world. While some patients can be treated effectively with available drugs, many do not respond, especially in the depression related to bipolar disorder. Depression is associated with diabetes, cardiovascular disease, immunological abnormalities, multiple sclerosis, cancer, osteoporosis and ageing: in each case depressed individuals have a worse outcome than non-depressed individuals. In all of these conditions there is now evidence of impaired phospholipid metabolism and impaired fatty acid-related signal transduction processes. Impaired fatty acid and phospholipid metabolism may be a primary cause of depression in many patients and may explain the interactions with other diseases. Several novel gene candidates for involvement in depression and bipolar disorder are proposed.

Health care utilization by older patients with coexisting dementia and depression

OBJECTIVE

Few studies have examined the course of coexisting dementia and depression. The purpose of this study was to compare elderly patients who had coexisting dementia and depression with elderly patients who had either disorder alone in terms of their utilization of inpatient and outpatient services.

METHOD

The study group included 7,115 veterans aged 60 years or older who had been discharged from Department of Veterans Affairs inpatient units in 1992 with diagnoses of major depression, dementia, or both. Outcome measures were analyzed for a 2-year period following the index hospitalization for each diagnostic study group.

RESULTS

Patients with coexisting dementia and depression had significantly more psychiatric inpatient days than the other two study groups and more medical inpatient days and nursing home readmissions than patients with depression alone. Patients with coexisting dementia and depression had significantly more total inpatient days than the other two groups. Notably, patients with coexisting dementia and depression did not utilize more outpatient resources than the other study groups; in fact, they had significantly fewer medical, psychiatric, and total visits than patients with depression alone.

CONCLUSIONS

The findings suggest that patients with coexisting dementia and depression are high utilizers of inpatient services, with a course of illness that may resemble dementia in terms of nursing home and inpatient medical care utilization and depression in terms of inpatient psychiatric care utilization; however, these patients utilized significantly fewer outpatient resources than the group with depression alone. Aggressive outpatient treatment approaches might reduce utilization of inpatient care for patients with coexisting depression and dementia.

Frequently missed diagnosis in geriatric psychiatry

Older adults are an important segment of the population that has specific health care needs. Their unique biopsychosocial characteristics impact the presentation, evaluation, and management of psychiatric illnesses. This article describes how common psychiatric disorders present in an aging population. Research in this area is relatively new and much more information is still needed. Close attention should be paid to new knowledge as it emerges about this growing population.

One-year prognosis of depressive illness in the elderly population in Japan

A 1-year prospective study of 43 elderly depressed residents (13 men and 30 women) in Nagai City in Japan is described. An initial survey was carried out in 1993 to find depressed residents. The subjects of the survey were 2056 residents of 65 years of age and older. The Japanese version of the Geriatric Depression Scale (GDS) was employed as a screening tool in the first phase of the survey. In the second phase, screened subjects and control subjects were interviewed by psychiatrists using the Structured Interview for DSM-III-R (SCID). The diagnosis of depression was made by the psychiatrists on the basis of the results of the SCID. Forty-three persons were judged to be depressed. At follow-up, 10 were still depressed and 15 were well. Four were demented. Fourteen dropped out due to death, hospitalization, absence from home or refusal. The results showed that approximately half of the elderly depressed persons seemed to recover by the time of the 1-year follow-up. One-year prognosis of dysthymia was the worst. Some types of depression seemed to be a precursor for dementia. The concern is with how the findings may be used as an aid in understanding and planning community mental health services strategies. The results indicate that it is very important to pay close attention to patients with depressive illness who do not meet the criteria for major depression.

Psychosocial and physical correlates of chronic depression

This study used a case-control design to address differences in psychosocial, physical and clinical profiles between subjects who presented with a chronic index episode of major depression and those who presented with a non-chronic index episode. Subjects were adult patients participating in the Duke University Mental Health Clinical Research Center (MHCRC) for the Study of Depression in Later Life. Cases (N = 88) who reported duration of depressive symptoms lasting > or = 24 months at enrollment were compared to controls (N = 354) who reported symptoms lasting 1-12 months. The groups were compared with respect to selected demographic and clinical variables, physical function deficits, medical comorbidity, social support constructs and number of recent stressful life events. Social support and physical health were more relevant to chronicity of major depressive illness than were severity of illness or family history. Older age (> 60 years) intensified the deleterious effect of recent negative life events and reduced the deleterious effect of functional impairment on chronic major depression. These findings require special emphasis where treatment for chronic major depression is divorced from considerations of the social environment and functional capacity.

Depression without sadness: functional outcomes of nondysphoric depression in later life

OBJECTIVES

We hypothesized that depressive symptoms not meeting full standard criteria for Major Depression would be associated with significant functional impairment among older adults over the course of a 13-year follow-up interval. Specifically, we developed criteria for a form of depression whose core symptoms did not include sadness or dysphoria.

DESIGN

Population-based 13-year follow-up survey.

SETTING

Community-dwelling adults living in East Baltimore in 1981.

PARTICIPANTS

Subjects were the 1612 participants of the Baltimore sample of the Epidemiologic Catchment Area Program aged 50 years and older at the initial interview in 1981.

MEASUREMENTS

The subjects were sorted into four categories based on their responses at baseline: (1) persons meeting standard criteria for Major Depression; (2) persons meeting alternative criteria for depression with dysphoria or (3) without dysphoria; and (4) a comparison category of persons not meeting any criteria for depression ("noncases"). The mortality and functional status of each group were compared after a 13-year follow-up interval.

RESULTS

Compared with non-cases, participants aged 50 years and older who reported depressive symptoms but who denied sadness or dysphoria (nondysphoric depression) were at increased risk for death (relative risk (RR) = 1.70; 95% confidence interval (CI) (1.09, 2.67)), impairment in activities of daily living (RR = 3.76; 95% CI (1.73, 8.14)), impairment in instrumental activities of daily living (RR = 5.07; 95% CI (2.24, 11.44)), psychologic distress (RR = 3.68; 95% CI (1.47, 9.21)), and cognitive impairment (RR = 3.00; 95% CI (1.31, 6.89)) after a 13-year follow-up interval. The findings were not wholly explained by potentially influential baseline characteristics such as age, education, selected comorbid medical conditions, and functional status.

CONCLUSION

Among adults aged 50 years and older, nondysphoric depression may be as important as Major Depression in relation to the development of functional disability and other long-term outcomes.

The outcome of elderly patients presenting with depressive symptoms

Objective: To examine the treatment of and outcome for elderly patients presenting with depressive symptoms.

Method: 100 consecutive elderly patients presenting to an old age psychiatric service with depressed mood were studied, 51 met DSM-III-R criteria for major depression and 49 met criteria for a range of other diagnoses. Demographic details, psychiatric history and clinical examination including Hamilton Depression Rating Scale, Mini-Mental State Examination and Cumulative Illness Rating Scale scores were recorded at first presentation. Treatment of index episode was recorded and outcome assessed at time of follow up (mean of 19.1 ± 9.1 months later).

Results: 57% of the major depressives and 41% of the other diagnoses had a good outcome. Within the other diagnoses group 30% of the comorbid anxiety/depression patients and none of the patients with dysthymia or personality disorder had a good outcome. In the major depression group there was no clear association between outcome and any clinical or demographic measure. Within the other diagnoses group a good outcome was significantly associated with being younger, having had more psychiatric admissions and being less likely to require benzodiazepine treatment (p < 0.05). The two groups received similar treatment except that the other diagnoses group were more likely to have had psychotherapy and the major depressed patients to have had ECT (trend) than the major depressed group.

Conclusions: The outcome for patients with major depression is similar to that found in previous studies. Patients with depressive syndromes associated with dysthymia, personality disorder, or comorbid anxiety/depression respond poorly to conventional treatments of depression.

The epidemiology of functional psychoses of late onset

For the functional psychoses of late life, epidemiological information comes from two sources: studies of persons who have reached psychiatric services; and surveys of elderly persons sampled from the general population. A conspectus of published data from both sources leads to the following conclusions: States phenomenologically similar to those found in clinics do occur in the community in non-trivial numbers. There is no notable divergence in the information obtained from clinical series and from population-based surveys. These states are more common in women, they become more common with increasing age and are sometimes associated with decline in cognitive performance or with degenerative changes in the brain revealed by neuroimaging. Genetic factors appear to be less important than in early-onset psychoses but remain ill-defined, and the roles of social isolation and disorders of personality have not yet been sufficiently elucidated. Both clinical and community-based studies have found an association with sensory impairment. The community-based data suggest that paranoid symptoms may be detectable at subclinical level, and an association between them and cognitive impairment is demonstrable in individuals who are not diagnosable cases either of psychosis or of dementia. Differences exist between late-onset paranoid psychoses and affective psychoses in symptomatology and response to treatment. These observations confirm the importance of the late-onset psychoses for research directed towards uncovering the origins of psychotic symptoms in any age group.

Does age predict the long-term outcome of depression treated with ECT? (a prospective study of the long-term outcome of ECT-treated depression with respect to age)

Sixty-three subjects with DSM-III-R major depression with melancholia or psychosis were followed up 2-4 years after index treatment with electroconvulsive therapy. There was a twofold increase in likelihood of improved outcome with an additional 20 years of age.

Treatment of major depression in later life: a life cycle perspective

The goal of this article is to provide a life-cycle perspective on the treatment of major depressive episodes in later life. Our studies have suggested that older patients appear to benefit as much, though perhaps more slowly, than mid-life patients from acute combined treatment (nortriptyline+interpersonal psychotherapy) of major depression. Given also the apparently higher relapse rate among the elderly, however, continuation treatment needs to be vigorous and closely monitored. The occurrence of severe life events prior to the index episode and the co-existence of an anxiety disorder both appear to prolong treatment response times, while chronic medical burden per se neither compromises response rates nor prolongs time to response. Self-rated perception of health improves with remission of depression in the elderly. As in mid-life patients, both antidepressant medication (nortriptyline) and interpersonal psychotherapy appear to possess chronic efficacy with respect to the prevention of recurrent episodes and prolongation of wellness. Finally, treatment of depression in the elderly results in improved quality of life, especially in domains of well being and coping. Particular challenges in the treatment of elderly patients are noncompliance and the prevention of suicide. The latter is closely linked to feelings of hopelessness, and these may be persistent in some patients.

Psychosocial stressors, physical illness and the spectrum of depression in elderly inpatients

OBJECTIVES

To describe all elderly patients hospitalised with principal and secondary diagnoses of depression, and to determine whether a relationship can be demonstrated between psychosocial stressors, physical illness and type of depression.

METHOD

A retrospective chart review of elderly patients admitted to a general hospital psychiatry ward over a 7-year period with principal or secondary diagnoses of depression was undertaken. Four broad diagnostic categories of depression were used: major depression, psychotic depression, minor depression, and organic depression. Chief outcome measures were: number of medical diagnostic categories, presence of psychosocial stressors, global clinical improvement, and length of stay.

RESULTS

Of 228 patients admitted with depression (194 principal diagnoses and 34 secondary diagnoses), 100 had major depression, 47 psychotic depression, 48 minor depression and 33 organic depression. Psychiatric comorbidity occurred in 70%, about half of which was due to organic brain syndrome. Patients with psychotic depression had the fewest medical problems and those with organic depression the most, while patients with minor depression had the highest rate of family and marital problems, comorbid personality dysfunction and suicide attempts. Patients with psychotic depression had the longest admissions, while those with minor depression had the shortest. Overall, 89% showed significant clinical improvement.

CONCLUSIONS

Elderly inpatients have a wide spectrum of depressive disorders with different psychosocial, medical and treatment profiles. Future studies of depression in old age should include all patients with clinical depression.

Methodology of Treatment Studies in Geriatric Depression

Treatment studies of geriatric depression should focus not only on recovery and remission but also on relapse, recurrence, disability, quality of life, cognitive impairment, and exacerbation of medical morbidity. Each of these outcomes appears to have different predictors. Medical burden may influence geriatric depression, response to antidepressants, and overall disability, as well as specific conditions underlying geriatric depression (e.g., Alzheimer's disease, stroke, or parkinsonism). Measures of medical morbidity, cognitive impairment, and perhaps structural brain abnormalities should be considered as possible influences on treatment response. Studies of geriatric depression associated with specific disease entities are necessary, using instruments that avoid rating symptoms and signs that are part of a concurrent dementia syndrome or result from a medical illness. However, there should also be ratings with an "all-inclusive" approach that disregards the origin of depressive symptoms-whether from depression, dementia, or the medical illness. This strategy will reduce the risk of underdiagnosing depression.

Life events and senile dementia. I. Admission, deterioration and social environment change

This study examines the frequency of life events before admission and before deterioration in 70 dementia patients, in comparison with 50 dementia controls living in the community and 50 fit elderly people matched for age and sex. We hypothesized that there would be an excess of events connoting changes in routine and the social environment. Specific scales were developed to measure these aspects of events. Our results supported the initial hypothesis, confirming that it is the social disruptiveness of change rather than the threat implied by life events that is associated with deterioration. The findings are discussed in the light of current models of the dementia process.

The epidemiology of depressive states in the elderly: implications for recognition, intervention and prevention

The evidence is reviewed on factors that might affect the onset of new depressive symptoms (destabilization) or loss of depressive symptoms (restitution) in the elderly. These factors are grouped into three broad categories: health-related factors (physical ill health, disability, and dementia and cognitive impairment); social factors (living in a nursing home, social support, bereavement, caring for a disabled person); and personal vulnerability factors (level of depressive symptoms at previous time points, history of depression, personality). The possible implications for preventing destabilization, aiding restitution and identifying high-risk groups are considered. Many of the factors are not easily modifiable, but there is potential for intervention with the physically ill and care givers. The physically ill may also merit routine screening. As in younger age groups, the greatest and most difficult challenge is to modify personal vulnerability.

Depression in old age. Is there a real decrease in prevalence? A review

The discrepancy between the constancy or increase of the prevalence of depressive symptoms and dysphoria in old age on one hand, and the decrease in the prevalence of the DSM-III diagnoses of major depression and dysthymia on the other, is discussed in light of the most frequent explanatory hypotheses such as memory defects, interpretation of depressive as somatic symptoms, higher risk of institutionalization as well as higher mortality of depressives and a mitigated course of depression in old age. We conclude that higher mortality, mitigation and the rarity of true late-onset depression are arguments for a real decline in prevalence, which occurs in accordance with the decline in all psychiatric disorders that are connected with emotional upheavals and substance ingestion. On the other hand, the connection of depressive states with somatic illness is strengthened, and according to preliminary validation studies, clinically relevant depressive states not reaching the threshold of DSM-III diagnoses may be typical for the depressive psychopathology of old age.

Low serum cholesterol is not associated with depression in the elderly: data from an Australian community study

BACKGROUND

Low serum cholesterol may contribute to depressive symptoms in the elderly.

AIMS

To test the relationship between depressive symptoms and low serum cholesterol in an elderly cohort.

METHODS

This was an examination of cross-sectional data in a community study of 1237 men and 1568 women aged 60+ years in Dubbo, NSW. Quintiles of serum cholesterol were defined for men and women. The Center for Epidemiological Studies Depression Scale was used as a continuous, dependent variable in multiple regression analyses.

RESULTS

Low serum cholesterol was not associated with depressive symptoms in older men or women. Health status, measured by poorer self-ratings, recent hospitalisation, higher disability levels and higher consumption of prescribed and self-prescribed drugs, predicted depressive symptoms. As well, the significance in the statistical model of financial difficulties, low self esteem, low feelings of self efficacy, the adequacy of practical help and emotional support, and recent widowhood, confirmed the importance of social origins of depressive symptoms.

Quantitative EEG Correlates of Outcome in Older Psychiatric Patients: Part II: Two-Year Follow-Up of Patients With Depression

The authors examined quantitative electroencephalographc (QEEG) coherence in 37 depressed elderly patients and performed 2-year follow-up evaluations. All subjects had equivocal cognitive impairment, but none had delirium or dementia. More than 40% (16/37) recovered from depression, and 38% (14/37) remained well for 2 years. Twenty-four percent (n = 9) had died within 2 years, most from cardiac causes. Low trans-Rolandic coherence from the left hemisphere was strongly associated with mortality: 44% (7/16) of those with low coherence died, and 78% (7/9) of those who died had low coherence. Among survivors (n = 28) at follow-up, low coherence was significantly associated with lower functional status. These findings suggest that the coherence variable measures actual neurophysiology differences between groups of depressed patients and these differences are associated with the heterogeneous outcomes of depression in elderly patients.

Personality disorder in the elderly depressed

The objectives of this study were to examine the association of personality disorder with outcome of depression in older patients (age > or = 60) treated in a psychiatric day hospital for depression and to compare the clinical diagnosis of personality disorder at admission with the results of a semi-structured interview at follow-up. Sixty-four patients were followed up for a mean interval of 30 (13-49) months after admission to the psychiatric day hospital and the semi-structured interview, Social Support Scale, Life Events Inventory, Hamilton Depression Rating Scale and Mini-Mental State Examination administered by a psychiatrist blind to the details of the index admission. Forty-nine informants (a close friend or relative) were also interviewed using the semi-structured interview. Axis II diagnoses at the time of admission were determined from patient records. Personality disorder diagnoses were analysed according to DSM-III-R clusters. Twenty-one (33%) patients fulfilled criteria for personality disorder at admission and 23 (36%) at follow-up. There was strong agreement (k = 0.78) between patient and informant semi-structured interview results and moderate agreement (k = 0.41) between diagnosis at admission and at follow-up. Presence of a personality disorder, and in particular a cluster B personality disorder diagnosis was associated with chronic outcome of depression and with impaired social support. Personality is a significant factor in the outcome of depression in the elderly. It remains unclear whether current methods of assessment tap enduring characteristics, or manifestations of affective state.

Prognosis of depression in the elderly. A comparison with younger patients

The prognosis of depression in the elderly was investigated in a mixed-age sample of 242 consecutive referrals, with DSM-III defined unipolar major depressive episode, to a specialist unit for mood disorders. Subjects were followed up at about 1 and 3.8 years. There was no significant difference in outcome between younger (under 40 years), middle aged (40-59 years) and older (60 years or more) depressed patients. For the 61 elderly subjects with depression, prognosis improved with time, with 25% having a lasting recovery at the first and 41% at the second follow-up. Early onset, recurrence, and poor premorbid personality were associated with a worse prognosis. Three (5%) elderly depressives had committed suicide and seven (11%) had died from natural causes by the second follow-up. Despite some methodological limitations, our findings suggest a more optimistic outlook and the need for longer, more assertive treatment for elderly, depressed patients.

Depression in old age. A reconsideration of cerebral disease in relation to outcome

In a prospective study, 32 patients with depressed mood and cerebral pathology were compared over one year with 66 depressed patients who were cerebrally intact. The hypothesis that the former would have a poorer outcome for depression was not confirmed, although the group with cerebral pathology had a significantly higher than expected death rate. Prognostic factors were identified only for the cerebrally intact group. Those who had major depression were more likely than those with minor depression to be given physical treatments, irrespective of which group they belonged to.

Reconsidering Depression in the Elderly

The authors present a literature review and a scientific commentary. The prevalence of depressive disorders in the elderly and their association with significant morbidity and mortality are discussed in relation to study of clinical heterogeneity, which may provide useful insights into etiologic and pathophysiologic variability. The authors summarize findings regarding clinical and associated features of late-life depression, explore the limitations of current factual knowledge and conceptual approaches, and propose directions for future research. They argue that current sample selection procedures minimize the variability of the very phenomena under study; therefore, few phenomenologic differences or risk factors for long-term outcome have been noted consistently. Factors such as medical illness account for much of the observed heterogeneity in presentation and outcome. Future studies must include a broader range of subjects and carefully examine in a multidimensional fashion a wider range of "comorbid" conditions, personality and social assessments, and neuropsychologic and neurobiologic measures. Such approaches will enhance our understanding of the pathophysiologic mechanisms of depression in the elderly and across the lifespan.

Community psychiatric nursing and depression in elderly people

This paper invites community psychiatric nurses (CPNs) working with the elderly to examine their involvement with elderly people who are depressed. It does this by examining a selection of the more recent literature on the topic of depression in the elderly and discusses how this might inform and guide the CPN in his/her practice with this client group. Areas from within the literature which are examined in this paper are: the prevalence of depression in the elderly; problems of underdetection and undertreatment; classification; screening instruments; social factors in causation; prognosis following treatment; and psychological therapy. The literature is shown to have much to offer in aspects of CPN role such as: assessment and planning of care, including psychological therapy; liaison with, and education of, other professionals; screening; and primary prevention. The nursing literature of this CPN specialism, where it relates to depression, is also examined. Although developments in psychiatric services specifically for the elderly were mainly as a response to the illnesses causing dementia, this paper emphasizes that depression is the more common disorder in the elderly. It is suggested therefore that a CPN service should ensure that it is significantly orientated to the needs of this client group.