A comparison of GP and GDS diagnosis of depression in late life among multimorbid patients - results of the MultiCare study

Predictors of change in depressive symptoms in older and multimorbid patients: a longitudinal analysis of the multicare cohort

BACKGROUND

Depression in older adults is becoming an increasing concern. As depressive symptoms change over time, it is important to understand the determinants of change in depressive symptoms. The aim of our study is to use a longitudinal study design to explore the predictors of change, remission and incident depression in older patients with multimorbidity.

METHODS

Data from the MultiCare cohort study were used. The cohort studied 3,189 multimorbid general practice patients aged 65-85. Data were collected during personal interviews. Depressive symptoms were assessed using the Geriatric Depression Scale (GDS-15). Predictors of change in depressive symptoms were determined using multivariate linear regression, while multivariate logistic regression was used to analyze predictors of remission and incident depression. Models included depressive symptoms at baseline and follow-up, socio-demographics and data on health status and social support.

RESULTS

Overall, 2,746 participants with complete follow-up data were analyzed. Mean age was 74.2 years, 59.2% were female, and 11.3% were classified as depressed at baseline. Burden of multimorbidity and social support were statistically significant predictors in all regression analyses. Further predictors of change in depressive symptoms were: income, pain, nursing grade, self-rated health and self-efficacy.

LIMITATIONS

The sample size for prediction of remission limited statistical certainty. Assessment of depressive symptoms using GDS-15 differs from routine clinical diagnoses of depression.

CONCLUSIONS

Predictors of change in depressive symptoms in older multimorbid patients are similar to those predicting remission and incident depression, and do not seem to differ significantly from other older patient populations with depressive symptoms.

Depression in the Elderly. Consensus Statement of the Spanish Psychogeriatric Association

INTRODUCTION

Present knowledge about depression in the elderly is still scarce and often controversial, despite its high frequency and impact. This article reports the results and most relevant conclusions of a Delphi-based consensus on geriatric depression promoted by the Spanish Psychogeriatric Association.

METHODS

A 78-item questionnaire was developed by 7 highly specialized geriatric psychiatrists and was evaluated using the Modified Delphi technique in two rounds answered by 35 psychiatrists with an extensive expertise in geriatric depression. The topics and number of questions (in brackets) covered were: concepts, clinical aspects, and risk factors (12); screening and diagnosis (7); psychotic depression (17); depression and dementia (5); antidepressant drug treatment (18); non-pharmacological biological treatments (5); psychotherapeutic treatments (4); comorbidity and preventive aspects (6); professional training needed (4). In addition, the expert panel's opinion on the antidepressants of choice in 21 common comorbid conditions and on different strategies to approach treatment-resistant cases in terms of both efficacy and safety was assessed.

RESULTS

After the two rounds of the Delphi process, consensus was reached for 59 (75.6%) of the 78 items. Detailed recommendations are included in the text. Considering pharmacological treatments, agomelatine was the most widely mentioned drug to be recommended in terms of safety in comorbid conditions. Desvenlafaxine, sertraline, and vortioxetine, were the most frequently recommended antidepressants in comorbid conditions in general. Combining parameters of efficacy and safety, experts recommended the following steps to address cases of treatment resistance: 1. Escalation to the maximum tolerated dose; 2. Change of antidepressant; 3. Combination with another antidepressant; 4. Potentiation with an antipsychotic or with lamotrigine; 5. Potentiation with lithium; 6. Potentiation with dopamine agonists or methylphenidate.

DISCUSSION AND CONCLUSIONS

Consensus was reached for a high number of items as well as for the management of depression in the context of comorbid conditions and in resistant cases. In the current absence of sufficient evidence-based information, our results can be used to inform medical doctors about clinical recommendations that might reduce uncertainty in the diagnosis and treatment of elderly patients with depressive disorders.

AgeWell.de - study protocol of a pragmatic multi-center cluster-randomized controlled prevention trial against cognitive decline in older primary care patients

BACKGROUND

In the absence of treatment options, the WHO emphasizes the identification of effective prevention strategies as a key element to counteract the dementia epidemic. Regarding the complex nature of dementia, trials simultaneously targeting multiple risk factors should be particularly effective for prevention. So far, however, only few such multi-component trials have been launched, but yielding promising results. In Germany, comparable initiatives are lacking, and translation of these complex interventions into routine care was not yet done. Therefore, AgeWell.de will be conducted as the first multi-component prevention trial in Germany which is closely linked to the primary care setting.

METHODS

AgeWell.de will be designed as a multi-centric, cluster-randomized controlled multi-component prevention trial. Participants will be older community-dwelling general practitioner (GP) patients (60-77 years; n = 1,152) with increased dementia risk according to CAIDE (Cardiovascular Risk Factors, Aging, and Incidence of Dementia) Dementia Risk Score. Recruitment will take place at 5 study sites across Germany. GP practices will be randomized to either intervention A (advanced) or B (basic). GPs will be blinded to their respective group assignment, as will be the statistician conducting the randomization. The multi-component intervention (A) includes nutritional counseling, physical activity, cognitive training, optimization of medication, management of vascular risk factors, social activity, and, if necessary, further specific interventions targeting grief and depression. Intervention B includes general health advice on the intervention components and GP treatment as usual. We hypothesize that over the 2-year follow-up period the intervention group A will benefit significantly from the intervention program in terms of preserved cognitive function/delayed cognitive decline (primary outcome), and other relevant (secondary) outcomes (e.g. quality of life, social activities, depressive symptomatology, cost-effectiveness).

DISCUSSION

AgeWell.de will be the first multi-component trial targeting risk of cognitive decline in older adults in Germany. Compared to previous trials, AgeWell.de covers an even broader set of interventions suggested to be beneficial for the intended outcomes. The findings will add substantial knowledge on modifiable lifestyle factors to prevent or delay cognitive decline.

TRIAL REGISTRATION

German Clinical Trials Register (reference number: DRKS00013555 ).

[How frequently are depressive disorders recognized in primary care patients? : A cross-sectional epidemiological study in Germany]

BACKGROUND

Primary care physicians (PCPs) play a crucial role for guideline-oriented intervention in patients with depression.

OBJECTIVES

Based on a diagnostic screening questionnaire, this study investigates the sensitivity of PCPs to recognize patients with depression as well as the factors facilitating recognition and concordant diagnostic decisions.

METHOD

In a cross-sectional epidemiological study in six regions of Germany, 3563 unselected patients filled in questionnaires on mental and physical complaints and were diagnostically evaluated by their PCP (N = 253). The patient reports on an established Depression-Screening-Questionnaire (DSQ), which allows the approximate derivation of an ICD-10 depression diagnosis, were compared with the physician diagnosis (N = 3211). In a subsample of discordant cases a comprehensive standardized clinical-diagnostic interview (DIA-X/CIDI) was applied.

RESULTS

On the study day, the prevalence of ICD-10 depression was 14.3% according to the DSQ and 10.7% according to the physician diagnosis. Half of the patients identified by DSQ were diagnosed with depression by their physician and two thirds were recognized as mental disorder cases. More severe depression symptomatology and the persistent presence of main depression symptoms were related to better recognition and concordant diagnostic decisions. Diagnostic validation interviews confirmed the DSQ diagnosis in the majority of the false-negative cases. Indications for at least a previous history of depression were found in up to 70% of false-positive cases.

CONCLUSION

Given the high prevalence of depression in primary care patients, there is continued need to improve the recognition and diagnosis of these patients to assure guideline-oriented treatment.

Categorical and dimensional perspectives on depression in elderly primary care patients - Results of the AgeMooDe study

An accurate diagnosis is essential for the management of late-life depression in primary care. This study aims to (1) provide information on the agreement on depression diagnoses between general practitioners (GPs), dimensional tools (Geriatric Depression Scale [GDS], Hospital Anxiety and Depression Scale [HADS]) and a categorical tool (Structured Clinical Interview for DSM-IV criteria [SCID]) and (2) identify factors associated with different diagnoses. As part of the multicenter study "Late-life depression in primary care: needs, health care utilization and costs (AgeMooDe)" a sample of 1113 primary care patients aged 75 years and older was assessed. The proportion of depression was 24.3% according to GPs, 21.8% for the GDS, 18.9% for the HADS and 8.2% for the SCID. Taking GDS, HADS and SCID as reference standards, recognition of GPs was 47%, 48% and 63%. Cohen's Kappa values indicate slight to moderate agreement between diagnoses. Multinomial logistic regression models showed that patient related factors of depression were anxiety, intake of antidepressants, female gender, a low state of health, intake of medication for chronic diseases and functional impairment. GPs performed better at ruling out depression than ruling in depression. High levels of disagreement between different perspectives on depression indicate that they may be sensitive to different aspects of depression.

Subthreshold Depression and Clinically Significant Depression in an Italian Population of 70-74-Year-Olds: Prevalence and Association with Perceptions of Self

Estimates of depressive disorders in the elderly vary depending on how cases are defined. We estimated the prevalence of subthreshold depression (SD) and clinically significant depression (D) in a population of 70–74-year-olds. We also looked for associations with sociodemographic factors and perceptions of self. Participants underwent a multidimensional assessment (social, medical, and neuropsychological). The estimated prevalence of SD was 15.71% (95% CI: 13.70–17.72), while that of D was 5.58% (95% CI: 4.31–6.85). Multinomial logistic regression analysis revealed that female gender and dissatisfaction with family relationships were related to SD and D. A self-perception of physical age as older than actual age (but not comorbidity) and greater self-perceived stress caused by negative life events both increased the probability of SD. The likelihood of D was decreased in those who perceived their own health as good, whereas a self-perception of mental age as older than actual age and dissatisfaction with relationships with friends were both significantly associated with D. Both SD and D emerged as key problems in our population. Female gender and self-perceptions of various characteristics, which can be explored through simple questions, are associated with late-life depression in elderly people independently of their actual physical condition and other characteristics.

Treatment preferences for depression in the elderly

BACKGROUND

If patients are treated according to their personal preferences, depression treatment success is higher. It is not known which treatment options for late-life depression are preferred by patients aged 75 years and over and whether there are determinants of these preferences.

METHODS

The data were derived from the German "Late-life depression in primary care: needs, health care utilization, and costs (AgeMooDe)" study. Patients aged 75+ years (N = 1,230) were recruited from primary care practices. Depressive symptoms were determined using the Geriatric Depression Scale (GDS-15). Support for eight treatment options was determined.

RESULTS

Medication, psychotherapy, talking to friends and family, and exercise were the preferred treatment options. Having a GDS score ≥ 6 significantly lowered the endorsement of some treatment options. For each treatment option, the probability of choosing the indecisive category "I do not know" was significantly increased in participants with moderate depressive symptoms.

CONCLUSIONS

Depressive symptoms influence the preference for certain treatment options and also increase indecision in patients. The high preference for psychotherapy suggests a much higher demand for late-life psychotherapy in the future. Healthcare systems should begin to prepare to meet this anticipated need. Future studies should include previous experience with treatment methods as a confounding variable.

Excess health care costs of late-life depression - Results of the AgeMooDe study

INTRODUCTION

The study aimed at determining excess costs of late-life depression from a societal perspective. Moreover, the impact of recognition of depression by GPs on costs was investigated.

METHODS

Cross-sectional data were obtained from a large multicenter observational cohort study (AgeMooDe). Participants (n=1197) aged 75 years or older and were recruited via their GPs in Leipzig, Bonn, Hamburg, and Mannheim in Germany from May 2012 until December 2013. In the base case analysis, depression was assessed using the Geriatric Depression Scale (GDS; cutoff GDS≥6). Data on health care utilization and costs were based on participants' self-reports for inpatient treatment, outpatient treatment, pharmaceuticals, and formal and informal nursing care.

RESULTS

Unadjusted mean costs in a six-month period for depressed individuals (€5031) exceeded those of non-depressed (€2700) by the factor 1.86 and were higher in all health care sectors considered. Statistically significant positive excess costs persisted in all formal health care sectors after adjusting for comorbidity and socio-demographics. Recognition of depression by the GP did not moderate the relationship of depression and health care costs.

LIMITATIONS

Analyses were restricted to a cross-sectional design, not permitting any conclusions on causal interference of the variables considered.

CONCLUSION

The findings stress the enormous burden of depression in old age for all sectors of the health care system. The fact that GPs' recognition of depression does not moderate the relationship between depression and costs adds further insights into the economics of this frequent psychiatric disorder.