Depression in survivor of stroke: a community-based study of prevalence, risk factors and consequences

The Impact of Systematic Depression Screening in Primary Care on Depression Identification and Treatment in a Large Health Care System: A Cohort Study

BACKGROUND

Unless implementation of systematic depression screening is associated with timely treatment, quality measures based on screening are unlikely to improve outcomes.

OBJECTIVE

To assess the impact of integrating systematic depression screening with clinical decision support on depression identification and treatment.

DESIGN

Retrospective pre-post study.

PARTICIPANTS

Adults with a primary care visit within a large integrated health system in 2016 were included. Adults diagnosed with depression in 2015 or prior to their initial primary care visit in 2016 were excluded.

INTERVENTION

Initiation of systematic screening using the Patient Health Questionnaire (PHQ) which began in mid-2016.

MAIN MEASURES

Depression diagnosis was based on ICD codes. Treatment was defined as (1) antidepressant prescription, (2) referral, or (3) evaluation by a behavioral health specialist. We used an adjusted linear regression model to identify whether the percentage of visits with a depression diagnosis was different before versus after implementation of systematic screening. An adjusted multilevel regression model was used to evaluate the association between screening and odds of treatment.

KEY RESULTS

Our study population included 259,411 patients. After implementation, 59% of patients underwent screening. Three percent scored as having moderate to severe depression. The rate of depression diagnosis increased by 1.2% immediately after systematic screening (from 1.7 to 2.9%). The percent of patients with diagnosed depression who received treatment within 90 days increased from 64% before to 69% after implementation (p < 0.01) and the adjusted odds of treatment increased by 20% after implementation (AOR 1.20, 95% CI 1.12-1.28, p < 0.01).

CONCLUSIONS

Implementing systematic depression screening within a large health care system led to high rates of screening and increased rates of depression diagnosis and treatment.

Assessment of late-life depression via self-report measures: a review

Depression in later life is a significant and growing problem. Age-related differences in the type and severity of depressive disorders continue to be questioned and necessarily question differential methods of assessment and treatment strategies. A host of geropsychiatric measures have been developed for diagnostic purposes, for rating severity of depression, and monitoring treatment progress. This literature review includes the self-report depression measures commonly and currently used in geropsychological practice. Each of the included measures is considered according to its psychometric properties. In particular, information about reliability; convergent, divergent, and factorial validity evidence based on data from clinical and nonclinical samples of older adults; and availability of age-appropriate norms was provided along with the strengths and weaknesses of each measure. Results highlighted that in cognitively intact or mildly impaired patients over 65 years, the Geriatric Depression Scale and the Geriatric Depression Scale-15 currently seem to be the preferred instruments. The psychometric functioning of the Beck Depression Inventory-II and the Center for Epidemiological Studies Depression Scale, instead, is mixed in this population. Most importantly, this review may be a valuable resource for practicing clinicians and researchers who wish to develop state-of-the-science assessment strategies for clinical problems and make informed choices about which instruments best suit their purposes in older populations.

Scoping review of common secondary conditions after stroke and their associations with age and time post stroke

BACKGROUND

Health care providers need to be alert to secondary conditions that might develop after stroke so that these conditions can be prevented or treated early to reduce further deterioration of health and quality of life.

OBJECTIVES

To review and describe the prevalence of secondary conditions after stroke and to summarize associations between secondary conditions and age and time post stroke.

METHODS

A scoping review of studies pertaining to secondary conditions after stroke published between 1986 and 2011 was conducted.

RESULTS

Seventy-six articles provided information regarding 6 secondary conditions: depression, pain, falls, fatigue, bowel/bladder problems, and sleep difficulties. Prevalence varied widely across studies for each condition. The limited repeated-measures evidence suggests that secondary conditions tend to occur in the first weeks or months post stroke and may remain relatively stable over time. Other evidence from regression analyses suggests either no significant associations between time post stroke or age or mixed results. Secondary conditions appear to be most commonly associated with severity of impairments.

CONCLUSIONS

Health care providers need to be alert to the development of secondary conditions after stroke in individuals as they age as well as in the poststroke time span. Obtaining a clear understanding of the prevalence of secondary conditions and associations with age and time post stroke is difficult because of variations in research methodologies. Future research is needed to define secondary condition prevalence and risk factors more clearly and to identify interventions that could reduce the prevalence and impact of these conditions on quality of life.

The prevalence of stroke and depression and factors associated with depression in elderly people with and without stroke

BACKGROUND

Few studies have investigated factors associated with depression among elderly people with and without stroke concurrently, using identical settings, procedures and study variables. The aim was to investigate the prevalence of stroke and depression and to compare the factors associated with depression in people with and without stroke.

METHODS

A postal mail survey was sent to 65-, 70-, 75- and 80-year-olds in northern Sweden and Finland in 2010 (n = 6098). Stroke was defined as answering "yes" to the question "Have you had a stroke?" Depression was defined as answering "yes" to the question "Are you depressed?" or having a Geriatric Depression Scale-4 score ≥2. Dependence in personal activities of daily living was defined as not showering without human assistance. Associations were tested with log-binomial regression.

RESULTS

The overall stroke prevalence was 7.0 ± 0.3 % and increased from 4.7 ± 0.4 % among 65-year-olds to 11.6 ± 1.0 % among 80-year-olds (p < 0.001). The overall depression prevalence was 12.8 ± 0.4 % and increased from 11.0 ± 0.6 % among 65-year-olds to 18.1 ± 1.2 % among 80-year-olds (p < 0.001). Depression was more common among people with stroke (Prevalence Ratio 1.77, 95 % Confidence Interval 1.48-2.12). In the non-stroke group, depression was independently associated with diabetes, dependence in instrumental activities of daily living, living alone, not having someone to talk to, poor finances, pain problems and having a life crisis in the preceding year. In the group with stroke, depression was independently associated with dependence in personal activities of daily living and having a life crisis the preceding year.

CONCLUSIONS

Depression in people without stroke appeared to be independently associated with a broader range of external factors than depression in people with stroke.

Suicide in stroke survivors: epidemiology and prevention

Stroke is a dramatic event and is associated with potentially severe consequences, including disability, mortality, and social costs. Stroke may occur at any age; however, most strokes occur in individuals aged 65 years and older. Previous research has found that stroke increases suicide risk, especially among women and younger patients. The aim of the current review is to investigate the relationship between suicide and stroke in order to determine which stroke patients are at elevated risk for suicide. Moreover, we review the literature in order to provide pharmacological treatment strategies for stroke patients at high risk of suicide. We performed a careful search to identify articles and book chapters focused on this issue, selecting only English-language articles published from 1990 to 2014 that addressed the issue of suicide after stroke and its pharmacological management. We found 12 clinical trials that explored the relationship between stroke and suicidal ideation and/or suicidal plans and 11 investigating suicide as the cause of death after stroke. We identified stroke as a significant risk factor for both suicide and suicidal ideation, especially among younger adult depressed patients in all articles, providing further support for the association between post-stroke and suicidality. Suicide risk is particularly high in the first 5 years following stroke. Depression, previous mood disorder, prior history of stroke, and cognitive impairment were found to be the most important risk factors for suicide. Selective serotonin reuptake inhibitors (SSRIs) represent the treatment of choice for stroke survivors with suicide risk, and studies in rats have suggested that carbolithium is a promising treatment in these patients. Early identification and treatment of post-stroke depression may significantly reduce suicide risk in stroke patients.

Depression among stroke survivors: a community-based, prospective study from Kolkata, India

OBJECTIVE

Post-stroke depression (PSD) is a disabling entity among stroke survivors (SS). Longitudinal studies on PSD, essential to determine its prognosis, are lacking from developing countries. This prospective study was undertaken to assess the prevalence, natural history, and correlates of depression among SS in an Indian community.

METHODS

From a community based stroke registry, SS were assessed annually for cognition, disability, and depression using Bengali validated scales. PSD was diagnosed if score on geriatric depression scale was greater than or equal to 21. Complex sample strategy was considered when calculating prevalence of post stroke depression. An age- and sex-matched case-control study was undertaken to determine the odds of depression in SS.

RESULTS

Prevalence of PSD was 36.98% (95% confidence interval [CI]: 31.89%-42.06%) among 241 patients assessed at baseline. About 17% developed depression annually and a similar proportion had spontaneous improvement. Peak rate of PSD was beyond 3 months and continued up to 18 months after stroke. Compared to the non-depressed group, PSD subjects were significantly older, had higher age at first stroke, less education, lower socioeconomic status, and greater cognitive impairment and disability. Education had a protective role. Mortality in PSD was nearly twice that in non-depressed patients, though not significant statistically (hazard ratio: 1.84; 95% CI: 0.90-3.77). Compared with controls, odds ratio of PSD was 19.95 (95% CI: 10.09-39.47).

CONCLUSIONS

Approximately one-third of SS develop PSD, similar to developed countries. Prevalence remains stable annually. Delayed peak of PSD suggested later realization of underlying disability. Predictors of PSD have been described and higher literacy was protective in this study.

Apathy and cognitive test performance in patients undergoing cardiac testing

Background. Psychiatric comorbidity is common in patients with cardiovascular disease, with the literature indicating that this population may be at risk for apathy. The current study examined the prevalence of apathy in patients with cardiovascular disease and its relation to aspects of cognitive function. Methods. 123 participants from an outpatient cardiology clinic completed a brief neuropsychological battery, a cardiac stress test, and demographic information, medical history, and depression symptomatology self-report measures. Participants also completed the Apathy Evaluation Scale to quantify apathy. Results. These subjects reported limited levels of apathy and depression. Increased depressive symptomatology, history of heart attack, and metabolic equivalents were significantly correlated with apathy (P < 0.05). Partial correlations adjusting for these factors revealed significant correlations between behavioral apathy and a measure of executive function and the other apathy subscale with a measure of attention. Conclusion. Findings revealed that apathy was not prevalent in this sample though associated with medical variables. Apathy was largely unrelated to cognitive function. This pattern may be a result of the mild levels of cardiovascular disease and cognitive dysfunction in the current sample. Future studies in samples with severe cardiovascular disease or neuropsychological impairment may provide insight into these associations.

Do stroke patients have an increased risk of developing suicidal ideation or dying by suicide? An overview of the current literature

Stroke is a leading cause of death that affects 15 million people worldwide each year. Increasing evidence suggests that stroke confers substantial risk for suicide and following a stroke, patients frequently develop poststroke depression, which is a well-established risk factor for suicide. In this overview of the current literature, we examined the association between suffering a stroke and subsequent risk for suicide and suicidal ideation. We performed a careful MedLine, Excerpta Medica, PsycLit, PsycInfo, and Index Medicus search to identify all articles and book chapters in English. We initially selected 31 articles published between 1990 and 2011; however, only 16 studies were included in this review. All articles identified stroke as a significant risk factor for suicide, especially among depressed patients, providing further support for poststroke depression and suicidality. The results also indicated that there were differences between patients who developed acute-onset suicidal plans and those who reported delayed-onset plans, which occurred more frequently. Many of the stroke patients who died by suicide suffered from depression prior to their death, suggesting that being diagnosed with a mood disorder contributes to an increased risk of suicide in this population. Suffering from a stroke increases the risk of dying by suicide and developing suicidal ideation, particularly in young adults and women. The factors found to confer the most risk for suicidality were depression, previous mood disorder, prior history of stroke, and cognitive impairment.

The factor structure of the center for epidemiologic studies depression scale in stroke patients

PURPOSE

The purpose of this study is to investigate the factor structure of the Center for Epidemiologic Studies Depression (CES-D) scale in community-residing stroke patients.

METHODS

The sample for this study was a convenience sample of 203 persons who had experienced strokes and were in a convalescent center for the disabled and a primary care unit in Korea. Data were collected through a questionnaire that included the CES-D scale. Cognitive function was assessed by the validated Korean version of the Mini-Mental State Examination (MMSE-K). The structure of the CES-D scale was analyzed by exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) using SPSS 17.0 and Amos 7.0. The reliability of the CES-D scale was assessed by calculating the internal consistency of Cronbach's α.

RESULTS

The 1-, 3-, and 4-factor models did not show the adequate fit indices. Two competing factor models were tested by CFA for the entire sample after identifying the factor structure using EFA. The 5-factor structure (loss of vitality, positive affect, psychomotor retardation, negative affect, and interpersonal problems) supported and explained 61.25% of the variance.

CONCLUSIONS

The results of this study suggest that the CES-D scale is a useful depressive symptom screening tool for community-residing stroke patients. Identifying the psychometric properties of the CES-D scale would help health professionals to understand the comprehensive assessment of community-residing stroke patients.

Mood and Balance are Associated with Free-Living Physical Activity of People after Stroke Residing in the community

Purpose. To determine which characteristics are most associated with free-living physical activity in community-dwelling ambulatory people after stroke. Method. Factors (age, gender, side of stroke, time since stroke, BMI, and spouse), sensory-motor impairments (weakness, contracture, spasticity, coordination, proprioception, and balance), and non-sensory-motor impairments (cognition, language, perception, mood, and confidence) were collected on 42 people with chronic stroke. Free-living physical activity was measured using an activity monitor and reported as time on feet and activity counts. Results. Univariate analysis showed that balance and mood were correlated with time on feet (r = 0.42, 0.43, P < 0.01) and also with activity counts (r = 0.52, 0.54, P < 0.01). Stepwise multiple regression showed that mood and balance accounted for 25% of the variance in time on feet and 40% of the variance in activity counts. Conclusions. Mood and balance are associated with free-living physical activity in ambulatory people after stroke residing in the community.

The correlates and course of depression in patients with lacunar stroke: results from the Secondary Prevention of Small Subcortical Strokes (SPS3) study

BACKGROUND

Little is known about post-stroke depression in patients with lacunar stroke due to cerebral small vessel disease. Our objectives were to describe the prevalence of depression, its correlates and to examine the course of depression over time in a cohort of patients with lacunar stroke, the majority of whom had mild functional disability.

METHODS

Depression was determined in participants in the international Secondary Prevention of Small Subcortical Strokes (SPS3) trial which is testing antiplatelet therapies and targets of blood pressure control in patients with lacunar strokes and assessing stroke recurrence and cognitive decline. Depression was evaluated using the Patient Health Questionnaire. Multivariable logistic regression models were fitted to examine the relationship between the covariates of interest and depression. Generalized estimating equations were used to examine the likelihood of depression over time, while accounting for the multiple measurements within each subject.

RESULTS

The prevalence of depression in 2,477 participants at approximately 4 months after stroke was 19%. Older age (OR 0.97; 95% CI 0.96-0.99), male gender (OR 0.62; 95% CI 0.48-0.80) and less cognitive impairment (OR 0.99; 95% CI 0.98-1.00) were independently associated with a lower risk of depression. Functional disability (OR 1.8; 95% CI 1.3-2.4), living with a spouse/family (OR 1.6; 95% CI 1.1-2.3) and risk factors for stroke (OR 1.2; 95% CI 1.0-1.3) were each independently associated with a higher risk of depression. Longitudinal modeling indicated that the likelihood of depression decreased by 1.12 times (95% CI 1.06-1.17) for each 1-year increase in time.

CONCLUSIONS

One fifth of those in the SPS3 trial cohort reported depression that is sustained over time. Although this is lower than the prevalence reported for stroke in general, these results underscore the importance of early screening for post-stroke depression, treatment and follow-up to minimize the negative consequences associated with depression.

Rasch analysis of the Center for Epidemiologic Studies Depression scale used for the assessment of community-residing patients with stroke

PURPOSE

To use Rasch analysis to validate a Center for Epidemiologic Studies Depression scale (CES-D) for measuring the level of depression in community-residing patients with stroke.

METHOD

This study involved 183 community-residing stroke survivors. Depression was measured using the CES-D. The data were analysed with Winsteps version 3.62 using a Rasch model to investigate the unidimentionality of the items' fit, the distribution of items' difficulty and reliability and appropriateness of the rating scale.

RESULT

Three items for CES-D showed a misfit with the Rasch model. Misfitting items included 'I did not feel like eating; my appetite was poor', 'I felt hopeful about the future' and 'My sleep was restless'. The person separation was 2.58, reliability was 0.87 and the rating scale of the CES-D was appropriate for stroke patients. The cut-off point of 16 out of 60 equated to a logit score of 0.85, which when applied to the 17-item scale (with four categories) equated to a cut-off point of 14.

CONCLUSION

At a new cut-off point of 14, the CES-D with 17 items was found to be reliable and valid as a screening tool for assessing depression in community-residing stroke patients. Moreover, it may not be appropriate to use a CES-D as it contains somatic factors for a population with physical dysfunctions.

Living setting and utilisation of ADL assistance one year after a stroke with special reference to gender differences

PURPOSE

To examine living setting and need for ADL assistance before and one year after a first-ever stroke with special focus on gender differences.

METHODS

One-year survivors from a population-based stroke study (n = 377) were studied with regard to place of living, need for ADL assistance and who provided the help. Stroke severity, cognitive impairment, post-stroke depression as well as risk factors were evaluated.

RESULTS

Before the stroke 48 patients (13%) lived in special housing (service flats or nursing homes), and one year after the stroke, 50 of the survivors (20%) lived in such accommodations. Before the stroke, 80 (21%) of the patients needed help with their personal ADL, while 90 (36%) needed help after one year. The increased need was fulfilled by relatives. Female spouses more often helped their male counterparts, and they tended to accept a heavier burden. Age, living alone, stroke severity, cognitive impairment, pre-stroke ADL dependency and depression were predictors for special housing.

CONCLUSIONS

In a time when more and more stroke survivors are cared for at home, it is important to pay attention to the situation of the caregivers. Female caregivers seem to be in an especially exposed position by accepting a heavier burden.

Study protocol of the YOU CALL--WE CALL TRIAL: impact of a multimodal support intervention after a "mild" stroke

Background

More than 60% of new strokes each year are "mild" in severity and this proportion is expected to rise in the years to come. Within our current health care system those with "mild" stroke are typically discharged home within days, without further referral to health or rehabilitation services other than advice to see their family physician. Those with mild stroke often have limited access to support from health professionals with stroke-specific knowledge who would typically provide critical information on topics such as secondary stroke prevention, community reintegration, medication counselling and problem solving with regard to specific concerns that arise. Isolation and lack of knowledge may lead to a worsening of health problems including stroke recurrence and unnecessary and costly health care utilization.

The purpose of this study is to assess the effectiveness, for individuals who experience a first "mild" stroke, of a sustainable, low cost, multimodal support intervention (comprising information, education and telephone support) - "WE CALL" compared to a passive intervention (providing the name and phone number of a resource person available if they feel the need to) - "YOU CALL", on two primary outcomes: unplanned-use of health services for negative events and quality of life.

Method/Design

We will recruit 384 adults who meet inclusion criteria for a first mild stroke across six Canadian sites. Baseline measures will be taken within the first month after stroke onset. Participants will be stratified according to comorbidity level and randomised to one of two groups: YOU CALL or WE CALL. Both interventions will be offered over a six months period. Primary outcomes include unplanned use of heath services for negative event (frequency calendar) and quality of life (EQ-5D and Quality of Life Index). Secondary outcomes include participation level (LIFE-H), depression (Beck Depression Inventory II) and use of health services for health promotion or prevention (frequency calendar). Blind assessors will gather data at mid-intervention, end of intervention and one year follow up.

Discussion

If effective, this multimodal intervention could be delivered in both urban and rural environments. For example, existing infrastructure such as regional stroke centers and existing secondary stroke prevention clinics, make this intervention, if effective, deliverable and sustainable.

Trial Registration

ISRCTN95662526

Goal achievement in the six months after inpatient rehabilitation for stroke

PURPOSE

The purpose of the project was to identify characteristics associated with successful re-integration into the community post-inpatient rehabilitation after stroke. A key issue was determining re-integration from the person's perspective, taking into account the person's preferred lifestyle choices.

METHOD

RESEARCH DESIGN

A prospective exploratory follow up study.

PARTICIPANTS

A consecutive sample of 45 participants discharged from IP rehabilitation following stroke and 23 carers associated with the participants.

MEASURES

Goal attainment scaling was utilised to determine successful community integration. Factors that may have contributed to goal achievement were measured prior to discharge and at 6 months post-discharge. Scales used include the Functional Independence Measure, Mini Mental test, the CES-D depression scale and a self-efficacy scale, Strategies Used by People to Promote Health. London Handicap Scale scores and Carer Strain Index were collected at 6 months.

RESULTS

Twenty percent of participants achieved all their goals. Significant correlations were observed between goal achievement score and concurrent measures of physical function, depression and self efficacy at 6 months post-discharge.

CONCLUSIONS

Stroke survivors who achieved their goals were less likely to be depressed, showed stronger self efficacy beliefs and more positive perceptions of their participation in everyday and community life.

Long-term neuropsychological and functional outcomes in stroke survivors: current evidence and perspectives for new research

AIMS

To appraise the literature on long-term neuropsychological and functional outcomes in stroke survivors and identify the gaps, challenges and future research in this area.

BACKGROUND

Stroke care resources are scarce, and the number of stroke survivors is likely to increase with the ageing of the population. Thus, evaluating the cost, frequency and prognostic factors of long-terms stroke functional and neuropsychological outcomes is of paramount importance for evidence-based clinical decision making, including the rationale, planning, provision and allocation of health services, and the development of effective interventions. Summary of review Stroke has an enormous physical, emotional and economic impact on the patients, families and society. However, accurate data on frequency, relationship and predictors of various long-term functional (body functioning, activity and participation) outcomes and costs of stroke are scarce, and no accurate and comprehensive data exist on long-term neuropsychological outcomes and their relationships with other functional outcomes poststroke.

CONCLUSIONS

There is a lack of accurate data on the frequency, relationship and predictors of various long-term functional outcomes and costs of stroke. There is a pressing need for good-quality population-based studies for evaluating the frequency and prognostic factors of long-term functional and neuropsychological outcomes of stroke in various populations.

Prevalence of depression in older people in England and Wales: the MRC CFA Study

BACKGROUND

Depression in old age is an important public health problem. The aims of this study were to report the prevalence of depression in the Medical Research Council Cognitive Function and Ageing Study (MRC CFAS), a community-based, cohort.

METHOD

Following screening of 13 004 people aged 65 and over from a population base, a stratified random subsample of 2640 participants received the Geriatric Mental State (GMS) examination and were diagnosed using the Automated Geriatric Examination for Computer-Assisted Taxonomy (AGECAT) algorithm.

RESULTS

The prevalence of depression was 8.7% [95% confidence interval (CI) 7.3-10.2], increasing to 9.7% if subjects with concurrent dementia were included. Depression was more common in women (10.4%) than men (6.5%) and was associated with functional disability, co-morbid medical disorder, and social deprivation. Prevalence remained high into old age, but after adjustment for other associated factors, it was lower in the older age groups.

CONCLUSIONS

The prevalence of depression in the elderly is high and remains high into old age, perhaps due to increased functional disability.

Exclusion and inclusion criteria for people with aphasia in studies of depression after stroke: a systematic review and future recommendations

BACKGROUND/AIMS

A third of individuals are depressed following stroke. A similar proportion have aphasia. The extent of their inclusion in depression following stroke studies affects the generalizability of findings.

METHODS

We systematically reviewed published studies (to December 2005) that diagnosed depression following stroke. We identified aphasia screening methods, aphasia exclusion and inclusion criteria and respective numbers of individuals with aphasia.

RESULTS

Of 129 studies (n = 19,183), aphasia screening methods were only reported by 57 (31 described a published aphasia-specific tool). No mention of aphasia was made in 13 studies. Most studies (92, 71%) reported some exclusion of people with aphasia (49 reported how many: n = 3,082, range = 2-554). Almost half of the studies (60, 47%) actually reported participants with aphasia (37 specified numbers: n = 829, range = 5-60). Aphasia exclusion or inclusion was not associated with sample source (community, acute hospital, other) or study purpose (observation, intervention, screening). Studies that reported screening for aphasia were more likely to describe aphasia exclusion and inclusion criteria and include participants with aphasia.

CONCLUSION

Aphasia screening, exclusion and inclusion criteria reporting across studies of depression following stroke has been highly inconsistent. This impairs the interpretation of generalizability. Improved aphasia screening and reporting of exclusion and inclusion criteria are urgently recommended.

Incidence and predictors of depression after stroke (DAS)

Objective. Depression after stroke (DAS) poses a treble burden to patients, families and health care system. The purpose of this paper is to estimate the incidence of depression among first-ever ischemic stroke patients and identify the predictors of DAS. Methods. A longitudinal study design was undertaken. Of 836 patients admitted to the stroke unit of two regional hospitals in Hong Kong during the period 1 June 2004 to 31 May 2005, 295 patients fulfilled the inclusion and exclusion criteria. A total of 260 patients had given their consents and were interviewed at 1 month after stroke onset. Results. Nearly one-quarter of the first ischemic stroke patients, who were known to be free of personal and family history of psychiatric illnesses, were found to satisfy the criteria of depression using Diagnostic and Statistical Manual IV (24%, 48 out of 200 participants; 95% CI: 18.6%, 30.4%). This result was close to that assessed by the Geriatric Depression Scale (GDS) - 15 items. The psycho-emotional factor and level of dependency were found to be most significant predictors for DAS onset. Conclusion. The high incidence of DAS and low rate of accessibility to treatment indicate timely action to be undertaken.

Prevalence of Depressive Symptoms Among Patients With Chronic Cough

STUDY OBJECTIVES

Cough is the most common complaint for which patients in the United States seek medical attention. Although the significant effect of cough on quality of life has been reported, the association of chronic cough with depressive symptomatology has not previously been investigated.

DESIGN

Prospective, nonrandomized evaluation.

SETTING

Outpatient department of academic medical center.

PATIENTS

Representative sample of patients presenting to a specialty center seeking evaluation and treatment of chronic cough.

INTERVENTIONS

Participants completed the Center for Epidemiologic Studies Depression Scale (CES-D), a 20-item self-report questionnaire designed to measure depressive symptomatology and risk for clinical depression, on initial evaluation and again after 3 months. Patients also provided subjective cough scores reflecting the severity of their cough.

MEASUREMENTS AND RESULTS

Of 100 patients undergoing initial evaluation, 53% scored positive (>/= 16) on the CES-D. Mean CES-D score was 18.3 +/- 13.2 (+/- SD). Among 81 subjects followed up at 3 months, mean CES-D score fell to 7.4 +/- 10.4, and subjective cough score decreased from 10 to 4.9 +/- 3.1. There was a statistically significant improvement in both cough and depression scores after 3 months (p < 0.001). Improvement in cough score correlated significantly with improvement in depression score (p = 0.003; Spearman rho = 0.323).

CONCLUSION

Depressive symptomatology is very common in patients with chronic cough. Physicians and other caregivers must be aware of the significant risk of clinical depression in this patient population.

Unidimensionality and bandwidth in the Center for Epidemiologic Studies Depression (CES-D) Scale

In this study, we compared classical test theory (CTT) and item response theory (IRT) approaches in analyzing the Center for Epidemiological Studies Depression (CES-D) Scale (Radloff, 1977). Standard item analyses, as well as Rasch (1960) analyses, both revealed item departures from unidimensionality in a sample of 2,455 older persons responding to the CES-D. Positive affect items in the scale performed poorly overall, their removal reducing the scale's bandwidth only slightly. Modeling depression scores derived from Rasch measures and raw totals showed subtle but important differences for statistical inference. The assessment of depressive risk was slightly enhanced by using 16-item scale measures obtained from the results of the Rasch analysis as the dependent variable. Confirmatory factor analysis and parallel analysis verified the advantages of removing positively worded items. IRT and CTT techniques proved to be complementary in this study and can be usefully combined to improve measuring depression.

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

OBJECTIVE

To offer an update on prevalence and predictors of old age depression in populations of elderly Caucasians.

METHOD

The databases MEDLINE and Psychinfo were searched and relevant literature from 1993 onwards was reviewed.

RESULTS

The prevalence of major depression ranges from 0.9% to 9.4% in private households, from 14% to 42% in institutional living, and from 1% to 16% among elderly living in private households or in institutions; and clinically relevant depressive symptom 'cases' in similar settings vary between 7.2% and 49%. The main predictors of depressive disorders and depressive symptom cases are: female gender, somatic illness, cognitive impairment, functional impairment, lack or loss of close social contacts, and a history of depression.

CONCLUSION

Depression is frequent in populations of elderly. Methodological differences between the studies hinder consistent conclusions about geographical and cross-cultural variations in prevalence and predictors of depression. Improved comparability will provide a basis for consistent conclusions.

A comparison of depressive symptoms in stroke and primary care: applying Rasch models to evaluate the center for epidemiologic studies-depression scale

OBJECTIVES

Clinical trials and community-based studies often include the Center for Epidemiologic Studies-Depression scale (CES-D) as a measure of depression outcome. We compared responses to symptom-related items on the CES-D by depressed stroke and primary-care patients for several purposes: 1) to illustrate the use of Item Response Theory (IRT)-based (Rasch) models for comparing scale functioning across different patient subgroups; and 2) to inform clinicians and outcome researchers about scale functioning and depressive symptomatology in stroke- compared with primary care-based depression.

METHODS

Two data sources were analyzed, including 32 depressed patients who were 3 months poststroke, and 366 depressed primary-care patients. Presence of depression was based on a CES-D score 16 or higher. Rasch models were used to assess item fit and compare item hierarchies between depressed primary-care and stroke patients.

RESULTS

Item hierarchies were similar for poststroke depression and primary care-based depression. Interpersonal disruption items were the most difficult to endorse for both groups. No items misfit the scale in primary-care depression. Items relating to restless sleep, unfriendliness, and crying slightly misfit the scale in stroke patients, that is, may measure a different trait. Differential item functioning (DIF) between the groups was identified for items relating to appetite, restless sleep, crying, and feeling disliked.

CONCLUSIONS

Results generally supported the use of the CES-D as measure of depression outcome, particularly in primary care-based depression. DIF may imply that slightly different clusters of depressive symptoms are reported by depressed stroke patients compared with primary care, but this is conjectural given the small stroke sample size and the same items have been previously associated with bias in studies of large nonstroke samples. This study found Rasch models to be useful tools to investigate scale performance for different clinical applications.

Poststroke depression in Chinese patients: frequency, psychosocial, clinical, and radiological determinants

This study attempted to evaluate the psychosocial, clinical, and radiological predictors of poststroke depression (PSD) in Chinese patients. One hundred eighty-nine patients participated in the study. Three months after the index stroke, a psychiatrist administered the Structured Clinical Interview for DSM-IV to all of the patients and made a DSM-IV diagnosis of depression. In addition, a host of demographic, clinical, and radiological variables were examined. Thirty-one (16.4%) of the patients had a diagnosis of PSD that included major depression (n=11, 5.8%,), minor depression (n=16, 8.5%), or dysthymia (n=4, 2.1%). Univariate analysis revealed that PSD was associated with female gender, a lower level of education, a lower Lubben Social Network Scale (LSNS) score, subcortical infarcts, and lesions in the anterior cerebral artery (ACA) territory, and the Modified Life Event Scale (MLES) score was borderline for statistical significance. Multivariate logistic regression analysis suggested that female gender, a high MLES score, and subcortical and ACA lesions were independent risk factors for PSD and that a high LSNS score was a protective factor.

Geriatric depression and vascular diseases: what are the links?

BACKGROUND

The term "vascular depression" has been proposed to describe a subset of depressive disorders that occurs in old age as a consequence of cerebrovascular disease. However, depression has been shown to result from other cardiovascular diseases such as coronary heart diseases, as well as to precipitate, worsen or precede vascular diseases. Depression also increases the likelihood of the incidence of vascular risk factors such as diabetes.

AIMS

To review clinical and epidemiological evidence linking geriatric depression and vascular diseases, and to discuss the potential mechanisms that could underlie this association.

METHOD

Systematic review of the literature of the last 5 years through Medline database search.

RESULTS

Papers report the following potential ways of association: (1) there is a direct influence of vascular disease, in particular, arteriosclerosis, on the incidence of depression; (2) depressive disorders have a direct impact on the cardiovascular system; (3) depression and vascular disease share either a common pathophysiological process or genetic determinants.

DISCUSSION

Depression can be understood as the direct consequence of brain damage in neurodegenerative disorders such as Parkinson's or Huntington's diseases. Similarly, vascular depression is mostly considered to be the consequence of microvascular lesions on prefrontal and subcortical regions. However, this functional neuroanatomical model offers no explanation for cases where depression has been shown to precede vascular diseases. Since cardiovascular diseases develop in a context of acquired environmental factors together with genetically determined disease, it may be postulated that geriatric depression could both result from brain lesions of vascular origin and also share some pathogenic or genetic determinants.

Relationship between depression and psychosocial functioning after traumatic brain injury11No commercial party having a direct financial interest in the results of the research supporting this article has or will confer benefit upon the author(s) or upon any organization with which the author(s) is/are associated

OBJECTIVE

To examine the relationship between depression and psychosocial functioning up to 5 years after traumatic brain injury (TBI).

DESIGN

Longitudinal cohort study with 2 assessments completed.

SETTING

Community.

PARTICIPANTS

Individuals (N=188) with TBI living in the community.

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Structured Clinical Interview for Depression, self-reports of depression severity, functional symptoms, quality of life (QOL), unmet important needs, and psychosocial functioning.

RESULTS

Based on observed depression patterns at initial and repeat assessment, 4 subgroups were created: no depression, resolved depression, late-onset depression, and chronic depression. Groups were equivalent in terms of demographic and injury-related factors but differed significantly in perceived psychosocial functioning. The no-depression group reported fewer depressive symptoms and higher levels of psychosocial functioning, whereas the chronic-depression group reported the poorest psychosocial functioning, with a further decline in QOL at reassessment. Although the resolved-depression and late-onset-depression groups reported similar psychosocial functioning at initial assessment, psychosocial functioning had improved for the resolved-depression group and declined for the late-onset-depression group at reassessment. Pre- and postpsychiatric diagnoses were common in all groups, with pre-TBI diagnosis of depression not predictive of post-TBI depression.

CONCLUSIONS

Findings highlight the need for broad-based assessments and timely interventions for both mood and psychosocial challenges after TBI.

Treatment patterns and outcomes of depressed medically ill and non-medically ill patients in community psychiatric practice

The prevalence of depression among the medically ill, the recognition of depression in general medical practice, and the association between depression and medical illness have all been a focus for research in recent years. Less is known about the process and outcomes of depression care in the medically ill compared with the non-medically ill, but some studies suggest that those with concomitant physical illness have poorer outcomes. In a study of community psychiatric practice, a sample of 53 patients with no medical comorbidity (NMI) was compared with 50 patients, categorized by higher (HMI) or lower (LMI) levels of physical comorbidity, approximately 5 months after beginning treatment for a current episode of major depression. No differences were found in treatments received or in mental health outcomes between the three groups. The HMI group showed greater impairment in social and occupational functioning at baseline and significantly greater improvement in these variables at follow-up. Since medical comorbidity does not appear to adversely affect treatment decisions or outcomes in community psychiatric practice, depressed, physically ill patients should be encouraged to seek treatment, regardless of their medical condition or level of disability.

Additive and interactive effects of comorbid physical and mental conditions on functional health

OBJECTIVE

To understand the role of cognitive impairment and depressive symptoms on functional outcomes of stroke and diabetes. Evaluation approaches to functional outcomes have rarely focused on the presence of specific comorbidities, particularly those involving mental health disorders.

METHODS

Data are from the AHEAD cohort of the Health and Retirement Study (HRS), a nationally representative panel of persons 70+ years of age in 1993. Analyses are limited to 5,646 self-respondents for whom functional outcome data are available in 1995. Additive and interactive multiple regression models are compared for each outcome and focal condition combination.

RESULTS

The additive model is sufficient for the majority of outcome and focal condition combinations. The interaction term is significant in 4 of 12 comparisons.

DISCUSSION

Stroke, diabetes, cognitive impairment, and depressive symptoms exhibit strong independent effects on physical functioning. Support for the hypothesis that cognitive impairment and depression exacerbate the impact of stroke and diabetes is more limited.

The effect of Qigong on general and psychosocial health of elderly with chronic physical illnesses: a randomized clinical trial

OBJECTIVES

Based on the model by Tsang et al. (2002) which summarized the etiological factors and consequences of depression in elderly with chronic physical illnesses, a randomized clinical trial of a special form of Qigong (The Eight Section Brocades) was conducted to assess if it improved the biopsychosocial health of participants.

DESIGN

50 geriatric patients in sub-acute stage of chronic physical illnesses were recruited and randomly assigned into the intervention and control group. The intervention group was given a 12-week period of Qigong practice while the control group was given traditional remedial rehabilitation activities.

RESULTS

The intervention group participants expressed improvement in physical health, ADL, psychological health, social relationship, and health in general as reflected by scores of the Perceived Benefit Questionnaire and informal feedback.

CONCLUSION

Although results are not significant in the generalization measures, it may be due to small effect size, small sample size, and short intervention period. Although not all of the hypotheses are supported, this report shows that Qigong (the Eight Section Brocades) is promising as an alternative intervention for elderly with chronic physical illness to improve their biopsychosocial health. More systematic evaluation with larger sample size and longer period of intervention is now underway in Hong Kong. Results will be reported once available.

Qigong as a psychosocial intervention for depressed elderly with chronic physical illnesses

Literature uncovers that depression is common in elderly people. The problem is more serious in elderly with chronic physical illnesses. Although the relationship between physical problems and depression is well documented, the underlying mechanism is basically unknown. This article proposed after a comprehensive literature review that depression in elderly with chronic physical illnesses results from disability and a reduction in psychosocial resources. If depression is left untreated, suicide may be a consequence. In view of this, various forms of psychosocial interventions are developed based on mainstream western medicine. The authors argue that qigong, a form of Chinese therapeutics, has the effect of alleviating clinical depression and thus improves quality of life. A simple form of dynamic qigong, namely the Eight-Section Brocades, is suggested to serve the purpose. A theory which explains the psychosocial effect of qigong is hypothesized.

Depression after stroke: a review of the evidence base to inform the development of an integrated care pathway. Part 1: Diagnosis, frequency and impact

BACKGROUND

Depression is a common complication of stroke, leading to increased morbidity and mortality. It can impede the process of rehabilitation, and has been associated with poorer outcomes and increased length of stay in hospital. This systematic review was undertaken as a preliminary step to explore the available evidence on which to base an integrated care pathway (ICP) for the management of post-stroke depression (PSD) in a rehabilitation setting. It is divided into two parts.

AIMS AND OBJECTIVES

In part 1 we review the frequency of depression in stroke and its impact on functional recovery. Also the different methods for diagnosis and measurement.

METHODS

Data sources comprised a computer-aided search of published studies on depression in stroke and references to literature used in reviews.

MAIN FINDINGS

PSD is common and is associated with cognitive, functional and social deficits which potentially limit the outcome from rehabilitation. However, diversity of assessment tools and diagnostic criteria confound assimilation of the available literature. The Beck Depression Inventory (BDI), Hamilton Depression Rating Scale and Zung Self-rating Depression Scale were most commonly used and have demonstrable validity in stroke patients but tend to exclude those with aphasia. Instruments developed specifically to include aphasic patients, such as the Stroke Aphasic Depression Scale, are promising but have yet to be fully evaluated.

CONCLUSIONS

Further work is required to adapt and evaluate instruments to measure depression in the context of stroke. Development of an integrated care pathway may help to establish a more consistent approach to assessment and diagnosis of PSD.

Emotions, behaviours and mood changes in stroke

The brain mediates and integrates all cognitive activities, emotional experiences and finally behaviours. Stroke is undoubtedly a privileged disease for human behavioural studies, because of its high incidence. Recent advances in high-resolution magnetic resonance imaging techniques and functional neuroimaging allow both the precise localization of lesions and on-line visualization of the activity of cerebral areas and networks. Nevertheless, the neuropsychiatry of stroke remains uncertain in its relationship with brain dysfunction. Clinical studies on registry populations, single case studies, and functional neuroimaging data provide interesting findings, but differences in methods and great individual intervariability still prevent a complete understanding of emotional perception and behavioural responses in stroke. We adopted an anatomical-functional model as an operational framework in order to systematize the recent literature on emotional, behavioural and mood changes after stroke. The dysfunction of the areas subserving fundamental and executive functions induces behavioural and affective changes (such as depression, anxiety, apathy) that reflect the dysfunction of the whole system. Conversely, lesions in the system of instrumental functions induce signature syndromes (aphasia, anosognosia). At any delay from stroke, the diagnosis and treatment of mood and behavioural changes are a priority for clinicians and healthcare professionals to improve the quality of life of patients.

Coping with the consequences of a stroke

BACKGROUND AND PURPOSE

Having a stroke constitutes a major life event which engenders some types of adaptation in order to try to resume to a "normal" life. The objectives of this study were (1) to explore the type of coping strategies used following a stroke; (2) to verify if coping strategies change over time, and (3) to verify if the coping strategies used are related to age, gender, actualization of potential, handicap level and depression.

METHODS

A convenience sample of 76 participants who had had a stroke was recruited upon discharge from a functional intensive rehabilitation unit. Data were collected 2 weeks later and 6 months later in their own home. Coping strategies were measured using a modified version of the Ways of Coping Questionnaire. Actualization of potential was measured using the Measure of the Actualization of Potential and handicap level was quantified with the LIFE-H. Finally, the Beck Depression Inventory was used to evaluate the presence of depressive symptoms.

CONCLUSION

The results suggest that long after the end of an intensive rehabilitation programme, some coping strategies might be more effective in dealing with the consequences of a stroke whereas others might be related to some form of inadaptation. However, the results should be treated with caution. More research on coping following a stroke using mixed methodologies is needed.

Suicide after a stroke: a population study

STUDY OBJECTIVE

To establish whether there are increased rates of suicide after a stroke and the degree to which any increase is related to gender, age at stroke, diagnosis, duration of hospitalisation, and time since stroke.

DESIGN

Cross linkage of national registers for hospitalisations and causes of death.

SETTING

The population of Denmark, 1979-1993.

PATIENTS

A study cohort was defined comprising all 114 098 stroke patients discharged alive from hospital during the period 1979-1993. These patients were then screened in a register of causes of death over the same time period, and 359 cases of suicide were identified.

MAIN RESULTS

Annual incidence rates, both observed and expected, together with standardised mortality ratios (SMR) were computed based on annual population and suicide statistics, stratified by age and gender. The overall annual incidence rate of suicide in the cohort was 83 per 100 000 per year compared with an expected figure of 45 (difference = 38, 95% CI = 27, 49). Correspondingly, SMR were increased for stroke patients. Across all age bands the SMR for mens was 1.88 (95%CI 1.66, 2.13) and for women 1.78 (1.48, 2.14). SMR were greatest (2.85; 2.17, 3.76) for patients under 50 years of age group and were least for patients 80 years or older (1.3; 0.95, 1.79). There was no clear relation to stroke diagnosis. Suicides were negatively related to duration of hospitalisation, being lowest for those hospitalised for more than three months (0.88; 0.65, 1.19) and highest for those hospitalised for less than two weeks (2.32; 1.92, 2.80). Survival analysis suggested that the risk for suicide is greatest up to about five years after a stroke.

CONCLUSIONS

Stroke patients are at an approximately doubled risk for suicide. This risk is greater among younger patients and among patients hospitalised for a relatively shorter time. The risk appears to decline with time after a stroke, being greatest within the first five years.

Psychosocial risk factors in poststroke depression: a systematic review

OBJECTIVE

To review systematically the psychosocial risk factors for poststroke depression.

METHODS

Medline was searched using the key words "poststroke depression" (PSD) for the period January 1, 1966, to June 30, 2000; using the key words "cerebrovascular disease" and "depression" it was searched from June 1, 1996, to June 30, 2000. Corollary articles were obtained from the bibliographies. Inclusion criteria were as follows: original research in French or English; prospective, case-control or cross-sectional study design; assessment of PSD in the first 6 months following the stroke; an acceptable definition of depression; an acceptable definition of stroke; and at least one psychosocial risk factor. Interrater reliability was tested for the selection and quality of the articles. A qualitative risk factor analysis was conducted.

RESULTS

The risk factors most consistently associated with PSD are a past history of depression, past personal psychiatric history, dysphasia, functional impairments, living alone, and poststroke social isolation. Risk factors not associated with PSD are dementia and cognitive impairment. Controversial risk factors are age, socioeconomic status (SES), prior social distress, dependency in regard to activities of daily living (ADL), and sex.

CONCLUSIONS

Over approximately 30 years, some 25 qualitative studies have addressed psychosocial risk factors for PSD. Further studies should aim for quantitative analysis. The results suggest that identifying psychiatric history and preventing social deterioration and impairment should be part of multidisciplinary efforts to care for poststroke patients.

Research into the specificity of depression after stroke: a review on an unresolved issue

Iwo decades of research have failed to generate consistent insight into the specificity of poststroke depression (PSD). This is, at least in part, caused by methodological difficulties. Differences in symptom profile between PSD and depression with no or another medical cause were described, but no specific and unequivocal clinical picture has been established so far. Prevalence rates of PSD varied largely between studies. In community based studies using standardised diagnostic instruments for depression, relatively low prevalence rates were reported compared to inpatient or rehabilitation studies. PSD occurs most frequently in the first few months after stroke, while a new incidence peak may occur 2-3 years after stroke. Two systematic reviews on the relation between lesion location and depression did not support the claim that left hemisphere lesions are a risk factor for PSD. A new concept of vascular depression has been proposed, which relates depression in the elderly to acute or chronic damage to the cerebral vascular system. Future efforts should aim at increasing the uniformity of study designs, assessment tools should be further improved for use in cognitively impaired patients and appropriate control groups should be defined to study the characteristic features of PSD.

Depression measures in outcomes research

OBJECTIVE

To review critically the measures used to screen for depression for disability outcomes research and to recommend measures and needed research.

DATA SOURCES

Review of literature pertaining to the development, testing, and use of depression measures for outcomes research.

STUDY SELECTION

English language literature from scientists from a broad range of disciplines and research settings, focusing mainly on the Brief Symptom Inventory and the Center for Epidemiology Study-Depression scale.

DATA EXTRACTION

A literature review was completed through MEDLINE. Based on the review, instruments were selected according to their use among people with disability and the reliability and validity of the instrument. Two instruments were selected for a complete review, and 5 instruments were selected for a brief review.

DATA SYNTHESIS

A critical review of measures that have been and may be used to measure depressive symptomatology among people with disability.

CONCLUSIONS

Screening measures of depression are easy to administer and score. Almost all have low respondent burden and good face validity, thereby contributing to a high participation rate for most studies. Some problems exist with the application of these instruments to people with disability (ie, overlap of symptoms of depression and indicators of physical impairment).

Stroke and apolipoprotein E epsilon4 are independent risk factors for cognitive decline: A population-based study

BACKGROUND AND PURPOSE

Stroke and apolipoprotein E epsilon4 (ApoE epsilon4) are individually important risk factors for cognitive decline, including Alzheimer disease. It has been suggested that ApoE epsilon4 multiplies the risk for cognitive decline following stroke. In a population-based sample, using well-defined sensitive cognitive measures, this study investigates whether cognitive decline following stroke is worse for patients who carry the ApoE epsilon4 allele.

METHODS

Subjects were participants in the Longitudinal Aging Study Amsterdam (LASA). The sample consisted of 1224 subjects, aged 62 to 85 years, who participated in the 3-year follow-up examination and for whom ApoE and stroke data were complete. We assessed cognitive decline using the Mini-Mental State Examination, the Auditory Verbal Learning Test (memory: immediate and delayed recall), and the Coding Task (information processing speed). The effects of stroke and ApoE epsilon4 on cognitive decline were evaluated with ANOVA and multiple logistic regression analysis, adjusted for age, sex, education, and baseline cognition.

RESULTS

A synergistic effect modification for stroke and ApoE epsilon4 on cognitive decline was not observed. Unexpectedly, instead, stroke patients carrying the epsilon4 allele demonstrated a nonsignificantly lowered risk for Mini-Mental State Examination decline (OR=0.3; 95% CI 0.1 to 1.1). ApoE epsilon4 was associated with declines in information processing speed (OR=1.5; 95% CI 1.1 to 2.1) and small declines for immediate and delayed recall.

CONCLUSIONS

Stroke and ApoE epsilon4 may impair cognition through distinct nonsynergistic mechanisms. The slowing of information processing speed for ApoE epsilon4 carriers was more evident than impairment in memory.