Prevalence and predictors of depression in populations of elderly: a review

Depressive symptoms among the medically hospitalized older individuals -- a 1-year follow-up study

AIM

The present follow-up study of older medically hospitalized patients from a rural area in Norway assessed the prevalence of depressive symptoms at 1-year follow-up and furthermore explored whether depressive symptoms at follow-up was associated with change in the medical, functional or emotional situation between baseline and follow-up.

METHODS

A 1-year follow-up study included 363 (175 men) older medical inpatients with age range 65-98 (mean = 80.2; standard deviation (SD) = 7.5) years. Information was collected at baseline and follow-up using the Hospital Anxiety and Depression scale (HAD), the Mini-Mental State Examination, Lawton and Brody's scales for physical self-maintenance and performance of the instrumental activities of daily living.

RESULTS

The prevalence of depressive symptoms, as defined by a score ≥ 8 at HAD-D, was 10% at baseline and 7% at follow-up. Of those with depressive symptoms at baseline, 78% had experienced remission. The incidence of depressive symptoms at follow-up was 5%. In logistic regression analyses adjusted for age, gender, and depressive symptoms at baseline, becoming or being in need of assistance from nursing or social services (odds ratio (OR) = 8.1, 95% CI: 1.9-34.2 and OR = 4.4, 95% CI: 1.1-17.4, respectively), having a cognitive decline (OR = 1.1, 95% CI: 1.0-1.3), and exhibiting poorer physical self-maintenance (OR = 1.2, 95% CI: 1.0-1.3), becoming vision impaired (OR = 8.3, 95% CI: 2.8-25.0), and with increased anxiety (OR = 1.2, 95% CI: 1.0-1.3) during follow-up was associated with depressive symptoms at follow-up.

CONCLUSION

The 1-year follow-up study of older medical inpatients contributes to the research body regarding risk factors of depression in older people.

Depression and associated factors in older adults in South Africa

BACKGROUND AND OBJECTIVE

Late-life depression is an important public health problem because of its devastating consequences. The study aims to investigate the prevalence and associated factors of self-reported symptom-based depression in a national sample of older South Africans who participated in the Study of Global Ageing and Adult Health (SAGE wave 1) in 2008.

METHODS

We conducted a national population-based cross-sectional study with a probability sample of 3,840 individuals aged 50 years or above in South Africa in 2008. The questionnaire included socio-demographic characteristics, health variables, anthropometric and blood pressure measurements as well as questions on depression symptoms in the past 12 months. Multivariable regression analysis was performed to assess the association of socio-demographic factors, health variables, and depression.

RESULTS

The overall prevalence of symptom-based depression in the past 12 months was 4.0%. In multivariable analysis, functional disability, lack of quality of life, and chronic conditions (angina, asthma, arthritis, and nocturnal sleep problems) were associated with self-reported depression symptoms in the past 12 months.

CONCLUSIONS

Self-reported depression in older South Africans seems to be a public health problem calling for appropriate interventions to reduce occurrence. Factors identified to be associated with depression, including functional disability, lack of quality of life, and chronic conditions (angina, asthma, arthritis, and nocturnal sleep problems), can be used to guide interventions. The identified protective and risk factors can help in formulating public health care policies to improve quality of life among older adults.

The prevalence of mental disorders in older people in Western countries - a meta-analysis

OBJECTIVE

To conduct a meta-analysis assessing the prevalence of mental disorders in older people in Europe and North America.

METHOD

Studies that reported prevalence rates of mental disorders in older people from the general population were identified through MEDLINE, PsycINFO, Web of Science, and reference lists for the period between January 2000 and December 2011. Studies were included if they reported prevalence rates of mental disorders in older people (50+ years) from the community. The final sample comprised 25 studies. Prevalence rates were extracted, and effect sizes were transformed into logits. Random-effects models were calculated due to significant heterogeneity. In meta-regression analyses possible sources of bias, including age of onset, gender distribution, and risk of bias were examined. To analyze the robustness of the results, sensitivity analyses were performed. Publication bias was assessed with funnel plots and the Egger method.

RESULTS

Disorders with the highest prevalence estimates were dimensional depression (19.47%), lifetime major depression (16.52%), and lifetime alcohol use disorders (11.71%). Disorders with the lowest estimates were current and lifetime drug use disorders (0.34% and 0.19%, respectively), and current bipolar disorder and current agoraphobia (both 0.53%).

CONCLUSION

The majority of studies investigated major depression, panic disorder and social phobia. Future research requires a larger database on the epidemiology of mental disorders in the elderly. Furthermore, an improvement to the methodology that addresses the challenges of older age and produces comparable data, including the use of instruments tailored to the needs of older people, is required.

Mediterranean diet and depressive symptoms among older adults over time

OBJECTIVE

To examine whether adherence to a Mediterranean-based dietary pattern is predictive of depressive symptoms among older adults.

DESIGN

Generalized estimating equation models were used to test the association between a Mediterranean-based dietary pattern and depressive symptoms over time. Models were adjusted for age, sex, race, education, income, widowhood, antidepressant use, total calorie intake, body mass index, smoking, alcohol consumption, number of self-reported medical conditions, cognitive function, and physical disability.

SETTING

Chicago, Illinois.

PARTICIPANTS

Community-dwelling participants (n=3502) of the Chicago Health and Aging Project aged 65+ years (59% African American) who had no evidence of depression at the baseline.

MEASUREMENTS

Adherence to a Mediterranean-based dietary pattern was assessed by the MedDietScore. Dietary evaluation was performed with a food frequency questionnaire at baseline and related to incident depression as measured by the presence of four or more depressive symptoms from the 10-item version of the Center for Epidemiologic Studies Depression scale.

RESULTS

Over an average follow-up of 7.2 years, greater adherence to a Mediterranean-based diet was associated with a reduced number of newly occurring depressive symptoms (parameter estimate = -0.002, standard error = 0.001; p = 0.04). The annual rate of developing depressive symptoms was 98.6% lower among persons in the highest tertile of a Mediterranean-based dietary pattern compared with persons in the lowest tertile group.

CONCLUSION

Our results support the hypothesis that adherence to a diet comprised of vegetables, fruits, whole grains, fish, and legumes may protect against the development of depressive symptoms in older age.

Incidence of late-life depression: a systematic review

BACKGROUND

In the past years, many studies have examined the prevalence of late-life depression. However, incidence studies, especially those including the oldest age groups, remained rare. The objective of this article is therefore to provide a systematic review on incidence of depressive disorders in latest life.

METHODS

A systematic search of the literature published between 1985 and 2011 was conducted using MEDLINE, Web of Science, PsycInfo and Cochrane databases. Inclusion criteria were: incidence specified for persons aged≥70 years at baseline, population-based sample or primary care sample. Incidence rates or risks were extracted or calculated.

RESULTS

We found 20 studies reporting incidence according to categorical (n=14) or dimensional diagnoses (n=6). The incidence of depressive disorders varied considerably. Major Depression (MD) was found to occur less often than Minor Depression (MinD), whereas clinically relevant depressive symptoms are at least as frequent as MinD. The incidence rate of MD was 0.2-14.1/100 person-years, and incidence of clinically relevant depressive symptoms was 6.8/100 person-years. Female incidence was mostly higher than male. Associations between age and incidence revealed to be rather inconsistent between studies.

LIMITATIONS

Methodological diversity of the studies concerning diagnostics, data collection methods, incidence definitions and sampling make the results difficult to interprete.

CONCLUSIONS

This review is the first to have focused on incidence studies on depression in latest life. The frequent occurrence of clinically relevant depressive symptoms will have to be considered in future health care planning. Physical health and psychosocial influences appear to be key variables in depression prevention.

Natural course of depressive symptoms in late life. An 8-year population-based prospective study

AIMS

The aim of the study was to follow the natural course of late-life depressive symptoms within a German population-based study.

METHODS

Within the Leipzig Longitudinal Study of the Aged (LEILA 75+), a representative sample of 1265 individuals aged 75 years and older were interviewed every 1.5 years over 8 years. Depressive symptoms were assessed using the Center for Epidemiologic Studies Depression Scale (CES-D, German-specific cut-off score ≥23).

RESULTS

The incidence of depressive symptoms was 34 per 1000 person-years (95% confidence interval 31-37). In a multivariate regression model, female gender, poor self-rated health status, stroke, risky alcohol consumption, a poor social network, higher number of specialist visits, functional impairment, and CES-D score at baseline were significant risk factors of future depressive symptoms. We observed remission in 60%, an intermittent course in 17% and a chronic course in 23% of the participants. No baseline characteristic distinguished the remission group from the persistently depressed.

CONCLUSION

Depressive symptoms in late life are common and highly persistent. In the present study encountered risk factors entailed potentialities for secondary prevention.

How community-dwelling seniors with multimorbidity conceive the concept of mental health and factors that may influence it: a phenomenographic study

Multimorbidity, that is, the coexistence of chronic diseases, is associated with mental health issues among elderly people. In Sweden, seniors with multimorbidity often live at home and receive care from nursing aides and district nurses. The aim of this study was to describe the variation in how community-dwelling seniors with multimorbidity perceive the concept of mental health and what may influence it. Thirteen semi-structured interviews were analysed using a phenomenographic approach. Six qualitatively different ways of understanding the concept of mental health and factors that may influence it, reflecting key variations of meaning, were identified. The discerned categories were: mental health is dependent on desirable feelings and social contacts, mental health is dependent on undesirable feelings and social isolation, mental health is dependent on power of the mind and ability to control thoughts, mental health is dependent on powerlessness of the mind and inability to control thoughts, mental health is dependent on active behaviour and a healthy lifestyle, and mental health is dependent on passive behaviour and physical inactivity. According to the respondents’ view, the concept of mental health can be defined as how an individual feels, thinks, and acts and also includes a positive as well as a negative aspect. Social contacts, physical activity, and optimism may improve mental health while social isolation, ageing, and chronic pain may worsen it. Findings highlight the importance of individually definitions of mental health and that community-dwelling seniors with multimorbidity may describe how multiple chronic conditions can affect their life situation. It is essential to organize the health care system to provide individual health promotion dialogues, and future research should address the prerequisites for conducting mental health promotion dialogues.

Changes in severity of depressive symptoms and mortality: the Italian Longitudinal Study on Aging

BACKGROUND

Depression is recognized as being associated with increased mortality. However, there has been little previous research on the impact of longitudinal changes in late-life depressive symptoms on mortality, and of their remission in particular.

METHOD

As part of a prospective, population-based study on a random sample of 5632 subjects aged 65-84 years, with a 10-year follow-up of vital status, depressive symptoms were assessed by the 30-item Italian version of the Geriatric Depression Scale (GDS). The number of participants in the GDS measurements was 3214 at baseline and 2070 at the second survey, 3 years later. Longitudinal changes in depressive symptoms (stable, remitted, worsened) were examined in participants in both evaluations (n=1941). Mortality hazard ratios (MHRs) according to severity of symptoms and their changes over time were obtained by means of Cox proportional hazards regression models, adjusting for age and other potentially confounding factors.

RESULTS

Severity is significantly associated with excess mortality in both genders. Compared to the stability of depressive symptoms, a worsened condition shows a higher 7-year mortality risk [MHR 1.46, 95% confidence interval (CI) 1.15-1.84], whereas remission reduces by about 40% the risk of mortality in both genders (women MHR 0.55, 95% CI 0.32-0.95; men MHR 0.59, 95% CI 0.37-0.93). Neither sociodemographic nor medical confounders significantly modified these associations.

CONCLUSIONS

Consistent with previous reports, the severity and persistence of depression are associated with higher mortality risks. Our findings extend the magnitude of the association demonstrating that remission of symptoms is related to a significant reduction in mortality, highlighting the need to enhance case-finding and successful treatment of late-life depression.

Good news and bad news: depressive symptoms decline and undertreatment increases with age in home care and institutional settings

OBJECTIVES

Examination of prevalence of depressive symptoms among older persons in home care (HC) and complex continuing care (CCC) hospitals/units, factors associated with depressive symptoms in those settings, and rate of antidepressant use among older persons with depressive symptoms.

DESIGN

Observational study using data from interRAI assessments used in normal clinical practice. Logistic regression models were used to identify factors associated with depressive symptoms in the frail elderly and treatment approaches were described.

SETTINGS

Fourteen HC agencies and 134 CCC hospitals/units in Ontario, Canada.

PARTICIPANTS

Older persons (N = 191,9871) aged 65 years and older, including 114,497 persons from HC and 77,490 persons from CCC.

MEASUREMENT

Data were collected using Resident Assessment Instrument 2.0 (RAI 2.0) (1996-2004) in CCC and Resident Assessment Instrument for Home Care (RAI-HC) (2003-2004) in HC.

RESULTS

Prevalence of depressive symptoms among older HC enrollees was lower (12.0%) than in CCC (23.6%). It decreased significantly with age in HC (to about 6% in those older than 95 years) but there were not substantial age differences in CCC. Common factors associated with depressive symptoms in both types of care were cognitive impairment, instability of health, daily pain, disability in activities of daily living; however, advanced age lost its protective effect in CCC. Less than half of the persons in HC and CCC with depressive symptoms were treated with antidepressants and their use decreased with age.

CONCLUSIONS

Undertreatment of depressive symptoms among older persons remains a serious problem. Learning more about factors associated with depressive symptoms among the oldest old might improve detection and treatment of depression.

Problem-solving versus cognitive restructuring of medically ill seniors with depression (PROMISE-D trial): study protocol and design

BACKGROUND

With an ageing population in most Western countries, people are living longer but often with one or more chronic physical health problems. Older people in physically poor health are at greater risk of developing clinical depression. Cognitive Behavioural Therapy (CBT) and Problem Solving Therapy (PST) have both been found to be efficacious in treating late-life depression, however patients with "multi-morbidity" (i.e. more than one chronic condition) are often excluded from these trials. The aim of this study is to compare the efficacy of CBT and PST in treating older adults who have one or more chronic physical health conditions and a diagnosable depressive disorder. This study will be the first to explicitly target the treatment of depression in older people in primary care settings presenting with a range of health problems using behavioural interventions.

METHODS/DESIGN

The PROMISE-D study is a randomised controlled trial of two evidence-based treatments for late-life major or minor depression for patients who also have at least one co-morbid chronic health problem. Participants will be randomised to two active interventions (PST or CBT) or enhanced treatment-as-usual (E-TAU). Primary outcomes will be depression diagnostic status and severity of depression (according to the Hamilton Depression Rating Scale and the Geriatric Depression Scale). Secondary outcomes will be anxiety severity, quality of life and health care utilisation. Assessments will be conducted by a researcher who remains blind to the patient's treatment allocation and will be conducted pre and post-treatment and at six and 12 months follow-up. Health care utilisation will be assessed throughout a two year period following entry to the trial. Executive function, rumination and emotion regulation will also be measured to determine the impact of these factors on treatment response in two treatment groups.

DISCUSSION

Multi-morbidity, the experience of two or more chronic health problems, is becoming an increasing problem internationally, particularly amongst the elderly. Evidence-based psychological treatments exist for late-life depression and these have been shown to be effective for participants with individual health problems and depression. However, there are no studies that have compared the two leading psychotherapies shown to be effective in the treatment of late-life depression. In addition, many trials of psychotherapy with older adults exclude those with multi-morbidity. Hence, this trial will confirm whether CBT and PST are efficacious in the treatment of depression in the context of complex medical needs and determine which of these two interventions is most efficacious.

TRIAL REGISTRATION

ACTRN12612000854831.

Nijmegen observer-rated depression scale for detection of depression in nursing home residents

OBJECTIVE

This study aims to test the accuracy of the Nijmegen observer-rated depression (NORD) scale, a new short scale for screening of depression in nursing home (NH) residents with and without dementia.

METHODS

This cross-sectional study with 103 residents with dementia (N = 19 depressed) and 72 residents without dementia (N = 10 depressed) was undertaken in 13 Dutch NH units. An elderly care physician and a psychologist of each unit assessed residents for the presence of clinical depression. Primary professional caregivers administered the NORD scale.

RESULTS

Five of the six proposed items showed acceptable performance in screening for depression. Receiver operating characteristic analyses revealed significant areas under the empirical curve (AUC) for the 5-item NORD scale in the total sample (AUC = 0.83, p < 0.001), as well as in residents with dementia (AUC = 0.84, p < 0.001) and without dementia (AUC = 0.84, p < 0.001). The cutoff score of >1 showed the highest sum of sensitivity (100) and specificity (69) in non-dementia and >2 the highest sum of sensitivity (79) and specificity (77) in dementia. The cutoff score of >1 showed the lowest negative likelihood ratio of 0.0 in non-dementia and of 0.2 in dementia. The highest positive likelihood ratios were found for the cutoff of >2 in non-dementia (3.4) and for >4 in dementia (26.5).

CONCLUSION

The 5-item NORD scale showed acceptable accuracy comparable with those of more extensive scales in other studies. It is easy and quick to administer and can be used for screening of depression in NH residents with or without dementia.

The burden of depressive symptoms and various chronic conditions and health concerns on the quality of life among those with Medicare Supplement Insurance

OBJECTIVE

This study aims to estimate the burden of currently having depressive symptoms on quality of life independently and in combination with various chronic conditions/health concerns among adults with Medicare Supplement Insurance (i.e., Medigap) coverage.

METHODS

Data were obtained from the Health Update Survey (HUS). The HUS contains questions on demographics, comorbid conditions, and all of the questions on the Veterans RAND 12-item (VR-12) health status/quality of life survey. The survey was mailed to a random sample of 30,000 insureds from 10 states between 2008 and 2009. On the basis of relevant questions from the survey, respondents were categorized into two groups: those currently suffering from current depressive symptoms (N = 2283) and those who never had depressive symptoms (N = 7058). Multiple regression modeling was used to test the impact on quality of life of depressive symptoms independently or as an interaction of depressive symptoms with various chronic conditions/health concerns.

RESULTS

Depressive symptoms were common, with an estimated prevalence of 24.4%. The greatest impact of depressive symptoms in combination with various chronic conditions/health concerns on quality of life was on the ability to handle emotional roles, bodily pain, social functioning, and ability to handle physical roles. Most of the significant interactions between depressive symptoms and various chronic conditions/health concerns were demonstrated for those chronic conditions contributing to functional impairment (e.g., difficulty walking, falls, chronic pain, and diabetes).

CONCLUSIONS

Although depressive symptoms independently reduced quality of life, having depressive symptoms in addition to other chronic conditions/health concerns had a greater impact on quality of life.

Rule-based modeling of chronic disease epidemiology: elderly depression as an illustration

BACKGROUND

Rule-based Modeling (RBM) is a computer simulation modeling methodology already used to model infectious diseases. Extending this technique to the assessment of chronic diseases, mixing quantitative and qualitative data appear to be a promising alternative to classical methods. Elderly depression reveals an important source of comorbidities. Yet, the intertwined relationship between late-life events and the social support of the elderly person remains difficult to capture. We illustrate the usefulness of RBM in modeling chronic diseases using the example of elderly depression in Belgium.

METHODS

We defined a conceptual framework of interactions between late-life events and social support impacting elderly depression. This conceptual framework was underpinned by experts' opinions elicited through a questionnaire. Several scenarios were implemented successively to better mimic the real population, and to explore a treatment effect and a socio-economic distinction. The simulated patterns of depression by age were compared with empirical patterns retrieved from the Belgian Health Interview Survey.

RESULTS

Simulations were run using different groupings of experts' opinions on the parameters. The results indicate that the conceptual framework can reflect a realistic evolution of the prevalence of depression. Indeed, simulations combining the opinions of well-selected experts and a treatment effect showed no significant difference with the empirical pattern.

CONCLUSIONS

Our conceptual framework together with a quantification of parameters through elicited expert opinions improves the insights into possible dynamics driving elderly depression. While RBM does not require high-level skill in mathematics or computer programming, the whole implementation process provides a powerful tool to learn about complex chronic diseases, combining advantages of both quantitative and qualitative approaches.

Desire for formal psychological support among caregivers of patients with cancer: prevalence and implications for screening their needs

OBJECTIVE

To investigate the prevalence of desire for formal psychological support of primary caregivers of patients with cancer and to identify caregivers' and patients' socio-demographic and psychological characteristics as well as patients' disease-related characteristics associated with this desire.

METHODS

This is a multicenter, cross-sectional study assessing desire for formal psychological support among consecutive primary caregivers of patients with cancer. Patients and caregivers completed the Hospital Anxiety and Depression Scale and reported their desire for formal psychological support.

RESULTS

Two-hundred and eighty-two patient-caregiver dyads were assessed. Forty percent of patients had breast cancer, 16% had a hematologic cancer, 12% had a gastrointestinal cancer, and 32% had another solid tumor. Nineteen percent of caregivers reported desiring formal support, and 54% experienced moderate to high levels of distress. Regression analysis showed that caregivers' desire for formal support was negatively associated with caregivers' age (Exp(B) = 0.95; p < 0.001) and education levels (Exp(B) = 0.35; p = 0.032) and positively with caregivers' level of distress (Exp(B) = 1.08; p < 0.001) and with patients' desire for formal psychological support (Exp(B) = 2.54; p = 0.008). These variables only predicted 25% of caregivers who desire formal support.

CONCLUSIONS

One out of five caregivers desires formal psychological support although one out of two caregivers experiences significant levels of distress. The weak association between caregivers' desire for formal support and distress emphasizes the need to implement systematic screenings of both their distress and their desire for formal psychological support in oncology.

Neighborhood characteristics and depressive mood among older adults: an integrative review

BACKGROUND

There is growing evidence that neighborhood environments are related to depressive mood in the general population. Older adults may be even more vulnerable to neighborhood factors than other adults. The aim of this paper is to review empirical findings on the relationships between neighborhood characteristics and depressive mood among older adults.

METHODS

A search of the literature was undertaken in PsycINFO and MEDLINE.

RESULTS

Nineteen studies were identified. Study designs were most often cross-sectional, included large sample sizes, and controlled for major individual characteristics. Mediational effects were not investigated. Statistical analysis strategies often included multilevel models. Spatial delimitations of neighborhood of residence were usually based on administrative and statistical spatial boundaries. Six neighborhood characteristics were assessed most often: neighborhood socioeconomic disadvantage, neighborhood poverty, affluence, racial/ethnic composition, residential stability, and elderly concentration. Selected neighborhood characteristics were associated with depressive mood after adjusting for individual variables. These associations were generally theoretically meaningful.

CONCLUSIONS

Neighborhood variables seem to make a unique and significant contribution to the understanding of depressive mood among older adults. However, few studies investigated these associations and replication of results is needed. Several substantive neighborhood variables have been ignored or neglected in the literature. The implications of neighborhood effects for knowledge advancement and public health interventions remain unclear. Recommendations for future research are discussed.

Systematic reviews on behavioural and psychological symptoms in the older or demented population

Introduction

Behavioural and psychological symptoms of dementia (BPS) include depressive symptoms, anxiety, apathy, sleep problems, irritability, psychosis, wandering, elation and agitation, and are common in the non-demented and demented population.

Methods

We have undertaken a systematic review of reviews to give a broad overview of the prevalence, course, biological and psychosocial associations, care and outcomes of BPS in the older or demented population, and highlight limitations and gaps in existing research. Embase and Medline were searched for systematic reviews using search terms for BPS, dementia and ageing.

Results

Thirty-six reviews were identified. Most investigated the prevalence or course of symptoms, while few reviewed the effects of BPS on outcomes and care. BPS were found to occur in non-demented, cognitively impaired and demented people, but reported estimates vary widely. Biological factors associated with BPS in dementia include genetic factors, homocysteine levels and vascular changes. Psychosocial factors increase risk of BPS; however, across studies and between symptoms findings are inconsistent. BPS have been associated with burden of care, caregiver's general health and caregiver depression scores, but findings are limited regarding institutionalisation, quality of life and disease outcome.

Conclusions

Limitations of reviews include a lack of high quality reviews, particularly of BPS other than depression. Limitations of original studies include heterogeneity in study design particularly related to measurement of BPS, level of cognitive impairment, population characteristics and participant recruitment. It is our recommendation that more high quality reviews, including all BPS, and longitudinal studies with larger sample sizes that use frequently cited instruments to measure BPS are undertaken. A better understanding of the risk factors and course of BPS will inform prevention, treatment and management and possibly improve quality of life for the patients and their carers.

Geriatric depression in advanced cancer patients: the effect of cognitive and physical functioning

AIM

The aims of the current study were to evaluate geriatric depression and its risk factors in advanced cancer patients.

METHODS

A cross-sectional study was carried out in a palliative care unit in Greece. Patients completed the Geriatric Depression Scale, the M. D. Anderson Symptoms Instrument (MDASI), the Activities of Daily Living and the Mini-Mental State Examination. Patients were included if they were aged >65 years, if they had cancer, were able to communicate and had agreed to sign informed consent. The final sample consisted of 92 elderly advanced cancer patients.

RESULTS

The prevalence of depression was found to be 67.4%. The univariate comparison between the depressed elderly and non-depressed group showed that patients with metastases were found to be 2.2-fold more likely to suffer from geriatric depression compared with those without metastases (P = 0.074). Patients with moderate or severe cognitive impairment were found to be 3.61-fold more likely to suffer from geriatric depression in comparison with those with normal cognitive function (P = 0.019). In the multiple logistic regression analysis, elderly with cognitive impairment were 3.3-fold more likely to have geriatric depression than those without (adjusted odds ratio = 3.3 [95% CI 0.99-10.74], P = 0.052) and MDASI factor 1 was consistently a significant risk factor for depression in the elderly; when MDASI factor 1 increased by 1 unit, the odds of being classified as depressed increased by 7.6%.

CONCLUSIONS

The present study found that cognitive impairment and symptoms such as enjoyment of life, walking, relationship with people, general activity, sadness and pain (MDASI F1) are strong independent predictors of depression in the elderly.

The effect of self-transcendence on depression in cognitively intact nursing home patients

Aims. This study's aim was to test the effects of self-transcendence on depression among cognitively intact nursing home patients. Background. Depression is considered the most frequent mental disorder among the elderly population. Specifically, the depression rate among nursing home patients is three to four times higher than that among community-dwelling elderly. Therefore, finding new and alternative ways to prevent and decrease depression is of great importance for nursing home patients' well-being. Self-transcendence is related to spiritual as well as nonspiritual factors, and it is described as a correlate and resource for well-being among vulnerable populations and at the end of life. Methods. A two-factor construct of the self-transcendence scale (interpersonal and intrapersonal) and the hospital anxiety and depression scale (HADS) was applied. A sample of 202 cognitively intact nursing home patients in central Norway was selected to respond to the questionnaires in 2008/2009. Results. A hypothesized SEM model demonstrated significant direct relationships and total effects of self-transcendence on depression. Conclusion and Implication for Practice. Facilitating patients' self-transcendence, both interpersonally and intrapersonally, might decrease depression among cognitively intact nursing home patients.

A stepped care relapse prevention program for depression in older people: a randomized controlled trial

BACKGROUND

This study aimed to determine the feasibility and the effectiveness of a Stepped Care Program (SCP) for preventing relapse of depression in older people. Stepped care consisted of (1) watchful waiting; (2) bibliotherapy; (3) individual cognitive behavioral therapy; and (4) indicated treatment.

METHODS

In a randomized controlled trial, persons 55 years and older (n = 136) who had suffered at least one episode of major depression in the past received a SCP or Care As Usual (CAU). The primary outcome measure was incidence of a new depressive episode.

RESULTS

Of 1725 previously depressed persons, 175 were willing to partake in the study, 136 of whom were eligible. Treatment satisfaction for stepped care was high. At 12-month follow-up, no difference in incidence of depression between SCP and CAU was found. Medical patient records showed that missing data were often related to relapse.

CONCLUSIONS

In this study, SCP was not more effective in preventing relapse than CAU. Watchful waiting may harmfully delay actual preventive treatment. Prevention as an integral part of regular treatment might lead to higher participation rates.

Community-dwelling Adults Versus Older Adults: Psychopathology and the Continuum Hypothesis

Little empirical evidence is available on older adults regarding the existence of a continuum between "normal" personality traits and DSM-IV-TR Axes I and II disorders (American Psychiatric Association, 2000). Given the typical complexity of clinical presentations in advanced age, it is feasible to expect a dimensional conceptualization of psychopathology to apply to older adults. In this pilot investigation, we first tested age differences in psychopathology, upholding the view that older adults should be considered separately from younger individuals in research on psychopathology. Then, in support of the dimensional approach, we tested the hypothesized continuity between normality and psychopathology by verifying the fulfillment of two operational criteria of continuity. A non-clinical sample of 100 Italian respondents was divided into two groups (50 people per group, 25 women and 25 men), aged 25-64 and 65-84, respectively. The instruments used were a measure of normal personality, SFERAS (Boncori & Barruffi, 2004) and one of Axes I and II psychopathology, TALEIA-400A (Boncori, 2007). MANOVA analyses demonstrated a significant effect on both measures, with older adults achieving higher Axis I scores and higher scores on normal personality traits connected to anxiety. The continuum hypothesis was confirmed on older and younger adults through correlational analyses that verified the fulfillment of both continuity criteria. Our results show that Italian older adults differ significantly in psychopathology from younger individuals; however, contrary to findings from other countries, in a negative direction. The continuity results (although in need of replication with larger samples, utilizing statistical methods better suited for these analyses, such as taxometric procedures) offer preliminary support for the notion that the dimensional approach to psychopathology could work well in older age.

Relationship of age and gender to the prevalence and correlates of psychological distress in later life

BACKGROUND

As populations age, psychological distress in late life will become of increasing public health and social importance. This study seeks to bridge the gap in information that exists about psychological distress in late life, by exploring the prevalence of psychological distress among a very large sample of older adults to determine the impact of age and gender, and the modifying effect of these factors on the associations between measures of psychological distress and sociodemographic and comorbid conditions.

METHODS

We analyzed self-reported data from 236,508 men and women in the New South Wales 45 and Up Study, to determine the impact of age and gender, and the modifying effects of these factors on associations between psychological distress and sociodemographic and comorbid conditions.

RESULTS

Higher education, married status, and higher income were associated with lower risk of psychological distress. Although overall prevalence of psychological distress is lower at older ages, this increases after age 80, and is particularly associated with physical disabilities. Some older people (such as those requiring help because of disability and those with multiple comorbid health conditions) are at increased risk of psychological distress.

CONCLUSION

These findings have implications for both healthcare providers and policy-makers in identifying and responding to the needs of older people in our aging society.

Predictors of and health services utilization related to depressive symptoms among elderly Koreans

While the prevalence, comorbidity, risk profile and health care utilization for late-life depression have been described for many Western countries, much less is known about the recent epidemiology of late-life depression in East Asian countries such as Korea. We investigated predictors for depressive symptoms and the association between depressive symptoms and the utilization of both medical care and preventive services in elderly Koreans. Data were obtained from a nationally representative sample of Koreans aged 60 and above (2226 men, 2911 women) who participated in the 2008 wave of the Korean Longitudinal Study of Ageing. Depressive symptoms were measured using the 10-item Center for Epidemiological Studies-Depression scale. Risk factors considered included sociodemographics, health behaviors, chronic diseases, and physical function. Health care utilization factors included hospitalization, outpatient clinic use and basic medical checkup. Being female, being unmarried, and having less education, lower household income, physical inactivity and lower weight were associated with depressive symptoms. Presence of chronic diseases and limited physical function also showed a significant association with depressive symptoms. Depressive symptoms were associated with increased odds of hospitalization and outpatient visits, but decreased the odds of utilization of basic medical checkup after controlling for potential confounders. Findings on most risk factors, except lower weight, were consistent with reports from Western countries. It is important to recognize the burden of depressive symptoms in the elderly. The interaction of such symptoms with chronic diseases should be acknowledged and considered in the clinical setting as well as in health care planning and policymaking.

Association between the prevalence of depression and age in a large representative German sample of people aged 53 to 80 years

OBJECTIVE

The aim of the study was to determine the association between the prevalence of clinically significant depression and age in a large representative sample of elderly German people.

METHODS

In the second follow-up (2005-2007) of the ESTHER cohort study, the 15-item geriatric depression scale (GDS-15) as well as a sociodemographic and clinical questionnaire were administered to a representative sample of 8270 people of ages 53 to 80 years. The prevalence of clinically significant depression was estimated using a GDS cut-off score of 5/6. Prevalence rates were estimated for the different age categories. Association between depression and age was analyzed using logistic regression, adjusted for gender, co-morbid medical disorders, education, marital status, physical activity, smoking, self-perceived cognitive impairment, and anti-depressive medication.

RESULTS

Of the participants, 7878 (95.3%) completed more than twelve GDS items and were included in the study. The prevalence of clinically significant depression was 16.0% (95%CI = [15.2; 16.6]). The function of depression prevalence dependent on age group showed a U-shaped pattern (53-59: 21.0%, CI = [18.9; 23.3]; 60-64: 17.7%, CI = [15.7; 19.7]; 65-69: 12.6%, CI = [11.2; 14.0]; 70-74: 14.4%, CI = [12.6; 16.0]; 75-80: 17.1%, CI = [14.9; 19.4]). Adjusted odds ratios showed that the chances of being depressive decrease with the age category but remain relatively stable for people aged 65 and over.

CONCLUSIONS

The prevalence of depression in the elderly seems to be associated with the age category. Adjusted odds ratios showed that people aged 60 and older had lower chances of being depressive than people aged 53 to 59 years.

A nationwide survey on the prevalence and risk factors of late life depression in South Korea

OBJECTIVE

This study aimed to estimate prevalence rates and risk factors of LLD among a large nationwide sample of Korean elders in South Korea.

METHOD

Of 8199 randomly sampled Koreans aged 65 years or more, 6018 participated (response rate=73.4%). Using the Korean version of the short form Geriatric Depression Scale (SGDS-K), we classified individual scoring 8 or 9 as having possible depression and those scoring ≥ 10 as having probable depression.

RESULTS

The age-, gender-, education-, and urbanicity-standardized prevalences were 10.1% (95% CI=9.3-10.8) for possible depression, 17.8% (95% CI=16.8-8.7) for probable depression, and 27.8% (95% CI=26.7-29.0) for overall depression. Poverty, living alone, low education, illiteracy, smoking, history of head trauma, and low Mini Mental Status Examination score were associated with greater risk of depression, while mild alcohol use and moderate to heavy exercise were associated with lower risk of depression. However gender difference in the risk of depression was not found.

CONCLUSION

LLD is decidedly common in South Korea. It was associated with various sociodemographic and clinical factors, some of which are amendable through policy actions. This study was limited by use of the SGDS-K rather than a standardized clinical interview.

Sex differences in depression among older adults: are older women more vulnerable than men in social risk factors? The case of open care centers for older people in Greece

This study examined depression, which, research has indicated, is the most common mental health problem affecting older people, especially women. Our objective was to estimate the prevalence of depression among older people in an urban Greek population and to investigate the covariates of depression symptoms prevalence by gender. The sample consisted of 360 individuals, 218 women and 142 men, aged 60 years or older, members of four open care centers for older people in Greece. A questionnaire for socio-demographic and medical data was used. Depression was probed by use of the geriatric depression scale short form. One-hundred and nine persons (30.3%), 32 men (22.53%) and 77 women (35.12%) were found to have depressive symptoms. The results indicated that women have more depression symptoms than men. Being currently unmarried and suffering from multimorbidity were associated with depression symptoms in both gender groups. Meetings with friends were found to be protective factors for both sexes; care of grandchildren and participating in outings and excursions seemed to be protective factors for women only. Unfavorable economic situations, and being childless, were associated with prevalence of depression symptoms among women only. This study confirmed the relationship between depression symptoms and gender and the importance of social and medical factors in the prevalence of depression symptoms, in both gender groups. It also indicated the greater vulnerability of women to some social factors.

Prevalence of depression and depressive symptoms among older Japanese people: comorbidity of mild cognitive impairment and depression

BACKGROUND

The aim of the study was to estimate the prevalence of DSM-III-R major depressive episodes (MDEs), depressive symptoms cases (DSCs) (defined as a score of ≥6 on the Geriatric Depression Scale but falling short of MDE), and coexisting mild cognitive impairment (MCI) among Japanese community-dwelling older people.

METHODS

Prevalence was estimated based on screening evaluation, individual interviews, and door-to-door visits. MDE and DSC were diagnosed, and the cognitive status of the participants was determined to be dementia, MCI, or normal.

RESULTS

A total of 1888 subjects of 2698 candidates (70.0%) participated. The prevalence of MDE and DSC were estimated to be 4.5% (95% CI, 3.4-6.0) and 11.5% (95% CI, 4.2-28.0), respectively. MCI was more prevalent in subjects with depression (26.2%) than those with normal mood (17.9%). Although no prototypical profile of cognitive dysfunction was revealed, multiple MCI was more prevalent in subjects with depression (12.2%) than subjects with normal mood (3.8%). Conversely, subjects with MCI (26.3%) were more likely to develop depression compared with those with normal cognitive function (18.0%).

CONCLUSIONS

The prevalence of depression in our subjects seems to be similar with that of previous studies. MCI was more prevalent in subjects with depression than those with normal mood. Individuals with depression showed no particular association with any of the four MCIs. Given that depression and MCI are often associated with each other and that MCI is a predictor for development of dementia, the risk of developing dementia in the depressed older people with coexisting MCI should be acknowledged.

Prevalence and risk factors of depressive symptoms in latest life--results of the Leipzig Longitudinal Study of the Aged (LEILA 75+)

INTRODUCTION

Because the oldest old will be the fastest-growing age group in the future and information about epidemiology of depressive symptoms in latest life is scarce, the present study aims at determining the age-specific and gender-specific prevalence rates and risk factors of depressive symptoms in latest life.

METHODS

As part of the Leipzig Longitudinal Study of the Aged (LEILA 75+), a population-based sample of 1,006 individuals aged 75 years and older were interviewed on socio-demographic, clinical and psychometric variables. Depressive symptoms were assessed using the Center for Epidemiologic Studies Depression Scale (cut-off score ≥16); mild cognitive impairment (MCI) was diagnosed according to criteria of the International Working Group on MCI. Factors associated with depressive symptoms were determined with multiple logistic regression models.

RESULTS

Of the overall sample, 38.2% (95% confidence interval, CI 35.2-41.2) were classified as depressed. In the full multivariate model, the following variables were significantly associated with depressive symptoms: divorced or widowed marital status, low educational level, poor self-rated health status, functional impairment, multi-domain MCI, stressful life events and poor social network. All variables but MCI remained significant correlates of depressive symptoms in the parsimonious model.

DISCUSSION

Because depressive symptoms are common in oldest age and associated with broad categories of risk factors, latest-life depression represents an important public health issue. Employment of comprehensive geriatric assessment to ascertain depressive symptoms and its concomitants could help to improve treatment success.

A Salutogenic Analysis of Developmental Tasks and Ego Integrity vs. Despair

This study examines the hypothesis that the outcome of the Eriksonian crisis of integrity vs. despair is dependent on successful coping with four developmental tasks: maintenance of active involvement, reevaluation of life satisfaction, developing a sense of health maintenance, and reevaluation of the sense of coherence (SOC). A selective sample of 170 rather healthy individuals at the mean age of 67 years filled out a questionnaire assessing everyday activities, satisfaction with past, present, and future life, healthy habits, SOC, and depression. In our final path-analytical model, the SOC had a significant direct effect on all endogenous variables; it also attenuated depression indirectly via activity and via satisfaction with present and future life. Satisfaction with present life showed the strongest mitigating direct effect on depression. The SOC is an important antecedent for successfully resolving the integrity vs. despair crisis, in that a strong SOC is a guiding force behind mastering the other three tasks.

Self-care management and risk factors for depressive symptoms among elderly outpatients in Taiwan

BACKGROUND

Early detection and appropriate treatment interventions for depressive symptoms in the elderly are important issues for healthcare systems. However, few studies to date have focused on understanding self-care strategies to manage depressive symptoms among elderly people worldwide. The purpose of this study was to explore self-care management strategies and risk factors for depressive symptoms among elderly outpatients in Taiwan.

METHODS

A convenience sample of elderly persons (≥65 years old; N = 1054) was recruited from outpatient clinics of two hospitals in northern Taiwan.

RESULTS

In our sample, the prevalence of depressive tendency was 16.3%. The majority of participants (70.1%) managed depressive symptoms with self-care strategies. The strategy most often used to relieve depressive symptoms was "take a walk." The main information source for self-care strategies was self-learning. Depressive tendency in this sample was shown by logistic regression analysis to be significantly predicted by gender, marital status, perceived income adequacy, perceived health condition, stroke, and cancer.

CONCLUSION

Elderly people need to be made more aware of strategies to self-manage depressive symptoms. Healthcare providers can decrease/prevent the first risk factor for depressive symptoms (poor perceived health status) by improving elders' perceived health and promoting their actual health. The second risk factor (poor perceived income adequacy) can be decreased/prevented by carefully assessing patients' financial situation during clinic visits and providing suitable referral for further assistance.

The effectiveness of a minimal psychological intervention on self-management beliefs and behaviors in depressed chronically ill elderly persons: a randomized trial

BACKGROUND

Chronically ill patients often develop symptoms of depression. They run the risk of sliding into a downward spiral because of the interaction between depression and chronic illness. A minimal psychological intervention (MPI) has been developed to break through the spiral by applying principles of self-management and cognitive behavioral therapy. This study examines the effects of the MPI on self-efficacy, anxiety, daily functioning and social participation.

METHODS

A randomized controlled trial compared the MPI with usual care in 361 primary care patients. Nurses visited patients at home over a period of three months. Patients were aged 60 years and older, had minor depression or mild to moderate major depression and either type 2 diabetes mellitus (DM) or chronic obstructive pulmonary disease (COPD). Outcomes were measured at baseline and at one week, three months, and nine months after the intervention period.

RESULTS

At nine months after treatment, the MPI was associated with less anxiety (mean difference 2.5; 95% CI 0.7-4.2) and better self efficacy skills (mean difference 1.8; 95% CI 3.4-0.2), daily functioning (mean difference 1.7; 95% CI 0.6-2.7), and social participation (mean difference 1.3; 95% CI 0.4-2.2). Effect sizes for these outcomes were small to medium (0.29-0.40). Differences were primarily due to a stabilization of outcomes in the intervention group and deterioration in the control group. No major differences were observed between DM and COPD patients.

CONCLUSIONS

The intervention appears to be reasonably effective in improving care for chronically ill elderly people. We recommend further evaluation of the MPI, including emphasis on detection and watchful waiting.

Age- and gender-specific prevalence of depression in latest-life--systematic review and meta-analysis

OBJECTIVE

The objective of the study is to systematically analyze the prevalence of depression in latest life (75+), particularly focusing on age- and gender-specific rates across the latest-life age groups.

DESIGN

Relevant articles were identified by systematically searching the databases MEDLINE, Web of Science, Cochrane Library and Psycinfo and relevant literature from 1999 onwards was reviewed. Studies based on the community-based elderly population aged 75 years and older were included. Quality of studies was assessed. Meta-analysis was performed using random effects model.

RESULTS

24 studies reporting age- and gender-specific prevalence of depression were found. 13 studies had a high to moderate methodical quality. The prevalence of major depression ranged from 4.6% to 9.3%, and that of depressive disorders from 4.5% to 37.4%. Pooled prevalence was 7.2% (95% CI 4.4-10.6%) for major depression and 17.1% (95% CI 9.7-26.1%) for depressive disorders. Potential sources of high heterogeneity of prevalence were study design, sampling strategy, study quality and applied diagnostics of latest life depression.

CONCLUSIONS

Despite the wide variation in estimates, it is evident that latest life depression is common. To reduce variability of study results, particularly sampling strategies (inclusion of nursing home residents and severe cognitively impaired individuals) for the old age study populations should be addressed more thoroughly in future research.

Gender-related differences in the burden of non-motor symptoms in Parkinson's disease

Differences in the expression of non-motor symptoms (NMS) by Parkinson's disease (PD) patients may have important implications for their management and prognosis. Gender is a basic epidemiological variable that could influence such expression. The present study evaluated the prevalence and severity of NMS by gender in an international sample of 951 PD patients, 62.63% males, using the non-motor symptoms scale (NMSS). Assessments for motor impairment and complications, global severity, and health state were also applied. All disease stages were included. No significant gender differences were found for demographic and clinical characteristics. For the entire sample, the most prevalent symptoms were Nocturia (64.88%) and Fatigue (62.78%) and the most prevalent affected domains were Sleep/Fatigue (84.02%) and Miscellaneous (82.44%). Fatigue, feelings of nervousness, feelings of sadness, constipation, restless legs, and pain were more common and severe in women. On the contrary, daytime sleepiness, dribbling saliva, interest in sex, and problems having sex were more prevalent and severe in men. Regarding the NMSS domains, Mood/Apathy and Miscellaneous problems (pain, loss of taste or smell, weight change, and excessive sweating) were predominantly affected in women and Sexual dysfunction in men. No other significant differences by gender were observed. To conclude, in this study significant differences between men and women in prevalence and severity of fatigue, mood, sexual and digestive problems, pain, restless legs, and daytime sleepiness were found. Gender-related patterns of NMS involvement may be relevant for clinical trials in PD.

Predicting the trajectories of depressive symptoms among southern community-dwelling older adults: the role of religiosity

BACKGROUND

This study examined the effects of religiosity on the trajectories of depressive symptoms in a sample of community-dwelling older adults over a four-year period in a Southern state in the U.S.

METHODS

Data from the University of Alabama at Birmingham (UAB) Study of Aging were analyzed using a hierarchical linear modeling (HLM) method. This study involved 1000 participants aged 65 and above (M age = 75 at baseline, SD = 5.97) and data were collected annually from 1999 to 2003. The Geriatric Depression Scale measured depressive symptoms; the Duke University Religion Index measured religious service attendance, prayer, and intrinsic religiosity; and control variables included sociodemographics, health, and social and economic factors.

RESULTS

The HLM analysis indicated a curvilinear trajectory of depressive symptoms over time. At baseline, participants who attended religious services more frequently tended to report fewer depressive symptoms. Participants with the highest levels of intrinsic religiosity at baseline experienced a steady decline in the number of depressive symptoms over the four-year period, while those with lower levels of intrinsic religiosity experienced a short-term decline followed by an increase in the number of depressive symptoms.

IMPLICATIONS

In addition to facilitating access to health, social support and financial resources for older adults, service professionals might consider culturally appropriate, patient-centered interventions that boost the salutary effects of intrinsic religiosity on depressive symptoms.

Sintomas depressivos em idosos: análise dos itens da Escala de Depressão Geriátrica

OBJETIVOS: Verificar a estrutura fatorial da Escala de Depressão Geriátrica de 15 itens em uma amostra de idosos assistidos pela Estratégia Saúde da Família, descrever o perfil social e analisar as respostas aos itens da Escala de Depressão Geriátrica. MÉTODOS: Estudo de delineamento transversal com 503 idosos assistidos pela Estratégia Saúde da Família, em Dourados, MS. Para analisar as respostas da EDG 15, utilizou-se o teste de Qui-quadrado de Mantel-Haenzsel (p <0,05). A análise fatorial, a consistência interna e a generalidade dos resultados para a população foram realizadas. RESULTADOS: Dos 503 idosos pesquisados 69,0% eram mulheres, 53,1% não letrados, 53,7% tinham 70 anos ou mais e 34,4% apresentavam depressão. A análise fatorial identificou quatro fatores (apatia, desesperança, desmotivação e isolamento). A estrutura da EDG 15 não se mostrou apropriada para a generalização de resultados. CONCLUSÃO: Dentre os idosos com depressão, predominaram a apatia e o isolamento. Cabe às equipes de saúde promover atividades físicas, recreativas e culturais para minimizar esse quadro. Novas pesquisas serão necessárias, sobretudo para análise da estrutura fatorial.

Depression and its correlates in older adults in Ukraine

OBJECTIVE

Little is known about the epidemiology of late life depression in Eastern Europe. This study examined the 12-month prevalence and correlates of DSM-IV major depressive episode (MDE) in adults age 50 years and over in Ukraine. The correlates included demographic factors, mental health and alcohol history, physical conditions, and impairments in functioning.

METHODS

A cross-sectional survey was conducted in Ukraine using the Composite International Diagnostic Interview (CIDI-3.0) as part of the World Health Organization-World Mental Health Survey Initiative. The sample included 1843 respondents age 50-91. Unadjusted and adjusted odds ratios were used to examine associations of the risk factors with 12-month MDE in men and women separately.

RESULTS

The 12-month prevalence of MDE was 14.4% in women and 7.1% in men. In both sexes, history of MDE before age 50 and poor self-assessed mental/physical health were significantly associated with MDE. Additionally, in men, living alone, 5+ physician visits, and role impairment, but not alcoholism, were associated with depression; in women, poverty, history of anxiety disorder, medical conditions, and cognitive and self-care impairment were significant.

CONCLUSIONS

The 12-month prevalence of late life MDE was substantially higher in Ukraine than in Western Europe and other developed countries. The risk factors, however, were similar to those found outside Ukraine. Depression is a recurrent condition, and history of depression was the strongest risk factor. Overall, the results show that older people in Ukraine constitute a high-risk group for MDE and would therefore benefit from targeted interventions by primary care physicians.

The association of depression and multimorbidity in the elderly: implications for the assessment of depression

BACKGROUND

Depression and multimorbidity are common in the elderly. Assessing depression might be difficult because of the overlap of depressive and somatic symptoms, possibly leading to confounded results.

METHODS

This study investigates the frequency of depression, multimorbidity and their association, the potential impact of multimorbidity on the assessment of depression by the Patient Health Questionnaire, and whether using a cut point might cause misleading results in the elderly German population (60-85 years, n= 1659).

RESULTS

Depressive syndromes are significantly more frequent in multimorbid respondents. Multimorbidity is associated with higher item scores, especially in the somatic items, and multimorbid respondents show higher depression severity levels in comparison to non-multimorbid persons.

CONCLUSION

There are associations between multimorbidity and depressive symptoms, therefore potentially confounding prevalence rates. As such, causal pathways of these associations should be studied under a longitudinal perspective in future studies.

The effectiveness of behavioural therapy for the treatment of depression in older adults: a meta-analysis

OBJECTIVE

To systematically review the effectiveness of behavioural therapy in depressed older adults.

METHODS

Electronic databases were searched to July 2009. Reference lists of systematic reviews and identified studies from the search strategy were also screened. Randomised controlled trials (RCTs) of behavioural therapy compared with waiting list controls or other psychotherapies in older adults (aged ≥55 years) with clinical depression were included. One author independently identified studies for inclusion. Two authors extracted data and assessed the included studies for risk of bias. Estimates of depression were combined using a random effects model and the I(2) statistic to examine heterogeneity.

RESULTS

Four RCTs were included in the meta-analysis. For post-treatment self-rated depression symptoms, behavioural therapy was not significantly more effective than a waiting list control [standardised mean difference (SMD) of -0.52, 95% confidence interval (CI) -1.35 to 0.30, p = 0.21, n = 117], cognitive therapy (SMD of 0.23, 95% CI -0.24 to 0.70, p = 0.33, n = 134) or brief psychodynamic therapy (SMD of -0.37, 95% CI -0.84 to 0.11, p = 0.13, n = 69). For post-treatment clinician-rated depression, behavioural therapy was not significantly more effective than cognitive therapy or brief psychodynamic therapy but was significantly more effective than a waiting list control (weighted mean difference (WMD) of -5.68, 95% CI -7.71 to -3.66, p < 0.001, n = 117).

CONCLUSIONS

Behavioural therapy in depressed older adults appears to have comparable effectiveness with alternative psychotherapies. Further research is recommended with the need for larger sample sizes, more clarity on trial design and the intervention, longer term follow-up and concomitant economic evaluations.

Increased health burden associated with comorbid depression in older Brazilians with diabetes

BACKGROUND

The health burden associated with comorbid depression and diabetes in older community residents in middle income countries is unclear.

METHODS

Data came from a statewide representative sample (N = 6963, age ≥ 60) in Brazil. Controlled polytomous logistic regression was used to determine whether four mutually exclusive groups (all possible combinations of the presence or absence of depression and diabetes) differed in sociodemographic characteristics, social resources, health behaviors, and selected health conditions.

RESULTS

While 2.37% were expected to have comorbid depression/diabetes given sample base rates (depression: 20.92% [1457/6963]; diabetes: 11.35% [790/6959]), comorbidity was present in 3.62% (52.5% beyond expectation; P<0.0001; OR = 1.58, 95% Confidence Interval 1.29-1.95). Depression without diabetes was reported by 17.3%, and diabetes without depression by 7.7%. In controlled analyses, the depression group had poorer socioeconomic status and health behaviors, and a greater likelihood of vascular, respiratory, and musculoskeletal problems than the diabetes group. Vascular, respiratory, and urinary problems were exacerbated in comorbid depression/diabetes; the comorbid group was also more likely to be female and younger.

LIMITATIONS

Cross-sectional design.

CONCLUSIONS

To our knowledge, this is the first study that explicitly reports on all four possible depression/diabetes combinations in an older representative community-resident sample, using controlled analyses to identify unique associations with sociodemographic characteristics and other health conditions. The burden of comorbid depression/diabetes in Brazil, a middle income country, appears to be comparable to that found in higher income countries. So, similarly, depression without diabetes had a greater odds of adverse sociodemographic and health conditions than diabetes without depression; comorbid depression/diabetes was more likely in women and young elderly, and the odds of vascular, respiratory, and urinary conditions was increased significantly. Attention to comorbid depression/diabetes as a unique entity is needed.

Age- and gender-specific prevalence and risk factors for depressive symptoms in the elderly: a population-based study

OBJECTIVES

Information on the prevalence and risk factors for depressive disorders in old age is of considerable interest for the assessment of future needs of the health care system. The aim of the study is to determine age- and gender-specific prevalence of major depression (MD), minor depression (MiD), and depressive symptoms, and to analyze risk factors associated with depressive symptoms.

METHODS

A representative sample of the German population of 1,659 individuals aged 60 to 85 years were visited at home and answered self-rating questionnaires. Depressive symptoms and syndromes (MD, MiD) were assessed using the Patient Health Questionnaire (PHQ-9). Factors associated with depressive symptoms were determined with linear regression models for the total sample and for men and women separately.

RESULTS

Depressive symptoms were found in 28.7% of the participants, while 6.6% were affected by MD or MiD. The highest prevalence of MD and depressive symptoms was found in the oldest age groups. MiD showed an unsteady course across age groups in both sexes. In the total sample as well as in the male subsample, depressive symptoms were significantly associated with increasing age, lower household income, an increasing number of medical conditions, and lower social support. In women only, the number of medical conditions and lacking social support were significantly associated with depressive symptoms.

CONCLUSIONS

Depressive symptoms are common in old age and occur on a spectrum ranging from very mild forms to MD. The potential modifiability of a number of risk factors for depressive symptoms opens possibilities of secondary prevention such as treatment of chronic diseases as well as support in requirements of daily living.

Thyroid hormones and depression: the Health in Men study

CONTEXT

Current practice guidelines suggest that thyroid function tests should be an integral part of the assessment of adults presenting with a depressive episode, although there is a paucity of data available to support such a recommendation.

OBJECTIVE

To determine if biochemical markers of thyroid dysfunction are associated with prevalent and incident clinically significant depressive symptoms.

DESIGN

Cross-sectional and cohort studies.

PATIENTS

Community-dwelling sample of 3,932 men age 69 to 87 free of overt thyroid disease.

MAIN OUTCOME MEASURES

We used the 15-item Geriatric Depression Scale to ascertain the presence of prevalent clinically significant depressive symptoms, and the Western Australia Data Linkage System to establish the onset of a depressive episode according to the International Classification of Diseases.

RESULTS

The serum concentration of thyroid-stimulating hormone and free thyroxine (fT4) did not affect the odds of prevalent or the hazard of incident depression. The odds of prevalent depression were 0.8 (95% CI: = 0.5-1.3) for men with subclinical hypothyroidism and 1.4 (95% CI: = 0.3-5.8) for those with subclinical hyperthyroidism. The hazard ratio of incident depression associated with subclinical hypothyroidism was 0.7 (95% CI: = 0.3-1.9). No men with subclinical hyperthyroidism developed depression during the follow-up period of 5.5 ± 1.4 years.

CONCLUSIONS

Subclinical thyroid disease is not associated with prevalent or incident depression in older men. These findings do not support the routine screening of subclinical thyroid dysfunction among older adults with depression.

Evolution, depression and the interplay between chance and choices

Depression is a common and disabling mental disorder that affects people of all ages, cultures and ethnic backgrounds (Hendersonet al., 2000; Matherset al., 2001; Kessleret al., 2005; Princeet al., 2007). Its presence has been recorded throughout history (Berrios, 1985), which suggests that the signs and symptoms of depression are not simply a product of our time. However, given the overwhelmingly negative consequences of depression (Broadheadet al., 1990; Ellis and Gordon, 2004), it may seem surprising that depression is so ubiquitous and that evolution by means of natural selection has not eliminated it from our midst.

Foreign live-in domestic workers as caretakers of older Kuwaiti men and women: socio-demographic and health correlates

Ageing of the population is posing new challenges for caretakers. This paper aims to examine: (a) age and gender differences in care provided by a domestic worker versus a family member in the performance of activities of daily living (ADL); (b) socio-demographic correlates of care during illness; and (c) self-reported physical, functional, and psychological health status in relation to care-giver. A cross-sectional household survey was conducted among 2,487 Kuwaiti nationals aged 50 years or older. This paper focuses on persons aged 70 or more. We found that domestic workers provided care to 28 per cent of men and 58 per cent of women who needed assistance with ADL; and to 14 per cent men and 51 per cent women during illness. These respondents ranked poorer on several health indicators and reported higher depressive symptoms score than those looked after by a family member. Logistic regression indicated that care by a domestic worker was approximately seven times more likely for women than men, about 10.8 times more likely for those without co-resident children compared with those who had three or more co-resident children, and 44 per cent less likely for the poorest compared with the richest persons. It appears that reliance on domestic workers is increasing and such reliance will remain necessary in the absence of culturally acceptable alternative institutional arrangements.

Risk factors for depression in older adults in Beijing

OBJECTIVE

Depression is a common mental disorder in older adults. We examined the prevalence and risk factors for depression in older adults in the Beijing area.

METHOD

We used data from a cross-sectional survey conducted in July 2006 in Beijing. As part of the national survey for older Chinese adults, 2002 older adults were interviewed. The 15-item Geriatric Depression Scale was used to assess depression. Demographics as well as other personal information were also collected.

RESULTS

Among Beijing older adults, 13.01% were categorized as depressed. Prevalence rates of depression in rural and urban older adults were 26.63% and 10.79%, respectively. Poor economic status, high activities of daily living (ADL) score, poor physical health, impious offspring, and feeling old were important predictors of depression in older adults in Beijing. For the urban sample, poor economic status, poor physical health, high ADL score, and impious offspring were risk factors for depression. For the rural sample, depression was significantly associated with poor economic status and poor physical health.

CONCLUSIONS

Depression is a common mood disorder among older adults in the Beijing area. Filial piety is a unique predictor for depression in older Chinese adults, compared with findings in Western cultures.

13 year follow up of morbidity, mortality and use of health services among elderly depressed patients and general elderly populations

OBJECTIVES

The aim of this study was to establish the predictive value of an ICD-10 diagnosis of depressive disorder or dysthymia (depressive patients) among 70 years + frail rural community living patients by measuring morbidity, mortality and use of health services. Identical measures were studied over time in general elderly populations.

OUTCOME MEASURES

morbidity, mortality and use of health services were registered over 13 years in: (i) a clinical cohort of frail community-living depressive patients (n = 38), a frail control group (n = 116) and non-frail elderly people (n = 575), all living in the same municipality, and (ii) register-based samples of general rural (n = 4 115) and capital living (n = 54 977) elderly populations. The outcome measures were compared using data from Danish national health registers.

RESULTS

Every one of the clinical cohort of depressive patients had died at the end of the study. Compared with both the frail control group and the non-frail elderly people, the depressive patients had significantly more psychiatric hospital days, outpatient home visits, antidepressant use, antipsychotic use, GP service use and more psychiatric diagnoses with higher morbidity. However, greater use of somatic hospital services or more somatic diagnoses among the depressive elderly patients were not observed. The general elderly population living in the capital had, compared with rural equals, significantly more somatic and psychiatric diagnoses, larger use of somatic hospital services, psychiatric hospital days, antipsychotics and anxiolytics, but less use of antidepressants, psychiatric outpatient home visits and GP services.

CONCLUSIONS

An ICD-10 diagnosis of depressive disorder or dysthymia predicted increased use of psychiatric services, more psychiatric diagnoses and increased mortality, indicating poor late-life psychiatric outcome. Contrasting with other studies, depression did not predict increased use of somatic hospital services or more somatic diagnoses. The differences in health care status and use between elderly living in the capital and in rural areas elderly are novel findings.

Depression trajectories and obesity among the elderly in Taiwan

BACKGROUND

The present study aimed to (a) characterize 10-year trajectory patterns of depressive symptoms and (b) investigate the association between depressive trajectory and subsequent obesity, metabolic function and cortisol level.

METHOD

In a prospective study of Taiwanese adults aged ≥60 years (n=3922) between 1989 and 1999, depression was assessed using a 10-item short-form of the Center for Epidemiologic Studies Depression Scale and information on body mass index (BMI) was collected by self-report. A subsample (n=445) of the original cohort in 1989 was drawn to assess metabolic variables and cortisol levels in a 2000 follow-up. After trajectory analyses were performed, multinomial logistic regression analyses were used to estimate the association estimates.

RESULTS

We identified four distinctive trajectories of depressive symptoms: class 1 (persistent low, 41.8%); class 2 (persistent mild, 46.8%); class 3 (late peak, 4.2%); and class 4 (high-chronic, 7.2%). The results from both complete cases and multiple imputation analyses indicated that the odds of obesity were lower in the class 2, 3 or 4 elderly, as compared with those in class 1, while the odds of underweight were higher. The classes of older adults with more and persistent depressive symptoms showed a trend toward having both a lower BMI (p=0.01) and a higher cortisol level (p=0.04) compared with those with low depressive symptoms.

CONCLUSIONS

Incremental increases in depressive symptoms over time were associated with reduced risk of obesity and higher cortisol levels.

Prediction of symptomatic depression by discriminant analysis in Japanese community-dwelling elderly

Although a number of studies have examined depression risk factors for elderly persons, little attention has been paid to the prediction of individuals at risk. This study constructed a predictive model for discrimination between individuals at a higher risk of depression and normal subjects in Japanese community-dwelling elderly persons, using linear discriminant analysis. Data were collected from 754 non-institutionalized elderly men and women aged 65 years and older living in the community in Japan, using face-to-face interviews in 2002. Stepwise linear discrimination analysis was used to construct a predictive model to select individuals who have a higher risk of depression. The stepwise discriminant analysis selected the five predictor variables (frequent hearing problems, poor appetite, less financial leeway, low emotional support and less subjective usefulness) and yielded a statistically significant function (λ=0.816; χ2=113.0, df=5, p<0.001). This function showed that the rate of correct prediction was 78.2% for depressed. The calculated discriminate function based on the above five predictor variables (hearing problem, less appetite, less financial leeway, low emotional support and less subjective usefulness) is useful for detecting individuals at high risk of depression and preventing its development among community-dwelling elderly persons. Prospective studies are needed to confirm the validity and feasibility of the model for earlier screening for depression among such people.