Depression in general practice

Effects of Allopurinol as a xanthine oxidase inhibitor on depressive-like behavior of rats and changes in serum BDNF level

Background

Depression is a psychiatric disorder characterized by low mood and loss of interest in daily activities. Allopurinol, a xanthine oxidase blocker, is widely administered for the treatment of hyperuricemia. Recently, its effects on serotonin and depressive like behaviors have been reported. On the other hand, the level of brain-derived neurotrophic factor (BDNF), a protective and regenerative neurotrophic, has been increased by many antidepressants. The purpose of this study was to evaluate the antidepressant effects of allopurinol and changes in serum level of BDNF compared to those of fluoxetine.

Methods

Thirty-five male Wistar albino rats divided into five groups (control, 10 mg/kg fluoxetine, 25, 50 and 100 mg/kg allopurinol; n = 7 per group), that received all treatments intraperitoneally, every day. Forced swimming tests (FST), tail suspension test (TST) and open field test (OFT) were performed after 21 days of drug administration. Finally, the serum BDNF levels were measured using the sandwich ELISA method.

Results

All doses of allopurinol and fluoxetine reduced the duration of immobility time in FST and TST. No significant changes were observed in the number of lines crossed in OFT between either allopurinol or fluoxetine groups and control group. Serum level of BDNF were significantly higher in fluoxetine and allopurinol 50 and 100 mg/kg groups.

Conclusions

Long-term administration of allopurinol 50 and 100 mg/kg have shown antidepressant effects in behavioral tests along with an increase in the amount of serum BDNF concentration. The OFT results suggested that allopurinol did not have any significant effects on motor activity. The increased serum level of the BDNF in the allopurinol group was correlated with FST and TST results. However, it is still not clear whether the antidepressant effects of allopurinol are due to a direct effects on serotonin and/or BDNF or an indirect effect related to its xanthin oxidase inhibition.

Factorial and diagnostic validity of the Beck Depression Inventory-II (BDI-II) in Croatian primary health care

The aim of this study was to examine the factorial and diagnostic validity of the Beck Depression Inventory-Second Edition (BDI-II) in Croatian primary health care. Data were collected using a medical outpatient sample (N = 314). Reliability measured by internal consistency proved to be high. While the Velicer MAP Test showed that extraction of only one factor is satisfactory, confirmatory factor analysis indicated the best fit for a 3-factor structure model consisting of cognitive, affective and somatic dimensions. Receiver operating characteristics (ROC) analysis demonstrated the BDI-II to have a satisfactory diagnostic validity in differentiating between healthy and depressed individuals in this setting. The area under the curve (AUC), sensitivity and specificity were high with an optimal cut-off score of 15/16. The implications of these findings are discussed regarding the use of the BDI-II as a screening instrument in primary health care settings.

Depression and gender differences among younger immigrant patients on sick leave due to chronic back pain: a primary care study

BACKGROUND

Mental ill-health and pain are major causes for disability compensation in female adults in Sweden. Aims The aims of this study were to (1) analyse gender differences in the prevalence of depression among immigrant patients with chronic back pain and (2) explore whether factors such as age, marital status, educational level, religious faith, number of children and number of diagnosed pain sites could explain these differences.

METHODS

The study sample consisted of 245 sick-listed primary care patients in consecutive order aged 18 through 45 years with a median duration of sick leave of 10 months for back pain and participating in a rehabilitation programme. Explanatory variables included physicians' diagnosed pain sites, age, marital status, education, number of children and religious affiliation. Predictive factors for depression were analysed using logistic regression.

FINDINGS

The women differed significantly from the men in three aspects: they were less educated, had more children and had more multiple pain sites, that is, 68% versus 45%. In the age-adjusted model, women were twice as likely to have depression (odds ratio (OR) 2.1). Regardless the gender, those with intermediate education of 9-11 years had the lowest odds of outcome compared with those with <0-8 years and ⩾12 years education. Finally, after adjusting for all explanatory variables, the ORs of depression for women decreased to a non-significant level (OR 1.8; 95% confidence interval (CI) 0.94-3.43). Furthermore, regardless of the gender, those with multiple pain sites had twice higher odds (OR 2.04; 95% CI 1.11-3.74) of depression than those with fewer pain sites.

CONCLUSION

Gender differences in odds of depression in our study could be explained by a higher prevalence of diagnosed multiple pain sites in women. This calls for tailor-made treatments that focus on the pain relief needs of immigrant women with low education and chronic back pain.

Definitions and factors associated with subthreshold depressive conditions: a systematic review

BACKGROUND

Subthreshold depressive disorders (minor and subthrehold depression) have been defined in a wide range of forms, varying on the number of symptoms and duration required. Disability associated with these conditions has also been reported. Our aim was to review the different definitions and to determine factors associated with these conditions in order to clarify the nosological implications of these disorders.

METHODS

A Medline search was conducted of the published literature between January 2001 and September 2011. Bibliographies of the retrieved papers were also analysed.

RESULTS

There is a wide heterogeneity in the definition and diagnostic criteria of minor and subthreshold depression. Minor depression was defined according to DSM-IV criteria. Regarding subthreshold depression, also called subclinical depression or subsyndromal symptomatic depression, between 2 and 5 depressive symptoms were required for the diagnosis, and a minimum duration of 2 weeks. Significant impairment associated with subthreshold depressive conditions, as well as comorbidity with other mental disorders, has been described.

CONCLUSIONS

Depression as a disorder is better explained as a spectrum rather than as a collection of discrete categories. Minor and subthreshold depression are common conditions and patients falling below the diagnostic threshold experience significant difficulties in functioning and a negative impact on their quality of life. Current diagnostic systems need to reexamine the thresholds for depressive disorders and distinguish them from ordinary feelings of sadness.

Depressive symptoms and healthcare utilization in patients with noncardiac chest pain compared to patients with ischemic heart disease

OBJECTIVES

We compared depressive symptoms and healthcare utilization in patients admitted for noncardiac chest pain, acute myocardial infarction, and angina pectoris after hospitalization and at 1-year follow-up.

METHODS

One hundred and thirty-one patients with noncardiac chest pain, 66 with acute myocardial infarction, and 70 with angina pectoris completed a depression screening questionnaire and the Montgomery Åsberg Depression Rating Scale. Healthcare utilization data were collected from a population-based, diagnosis-related database.

RESULTS

More than 25% of respondents reported depressive symptoms, regardless of diagnosis. At follow-up, 9% had recovered, 19% were still experiencing depressive symptoms, and 13% had developed depressive symptoms. Noncardiac patients with chest pain had similar primary care contacts, but fewer hospital admissions, than patients with an acute myocardial infarction. Patients with angina pectoris and depressive symptoms used the most healthcare services.

CONCLUSIONS

Depressive symptoms were common. Patients with noncardiac chest pain used as much primary care as did patients with an acute myocardial infarction. Interventions should focus on identifying and treating depressive symptoms.

Best practice elements of multilevel suicide prevention strategies: a review of systematic reviews

Background: Evidence-based best practices for incorporation into an optimal multilevel intervention for suicide prevention should be identifiable in the literature. Aims: To identify effective interventions for the prevention of suicidal behavior. Methods: Review of systematic reviews found in the Pubmed, Cochrane, and DARE databases. Steps include risk-of-bias assessment, data extraction, summarization of best practices, and identification of synergistic potentials of such practices in multilevel approaches. Results: Six relevant systematic reviews were found. Best practices identified as effective were as follows: training general practitioners (GPs) to recognize and treat depression and suicidality, improving accessibility of care for at-risk people, and restricting access to means of suicide. Although no outcomes were reported for multilevel interventions or for synergistic effects of multiple interventions applied together, indirect support was found for possible synergies in particular combinations of interventions within multilevel strategies. Conclusions: A number of evidence-based best practices for the prevention of suicide and suicide attempts were identified. Research is needed on the nature and extent of potential synergistic effects of various preventive activities within multilevel interventions.

A comparison between the Beck's Depression Inventory and the Gotland Male Depression Scale in detecting depression among men visiting a drop-in clinic in primary care

BACKGROUND

Anger attacks and alcohol use may mask depressive symptoms in men. Only the Gotland Male Depression Scale (GS) includes such items.

AIMS

To study the usefulness of the GS and Beck Depression Inventory (BDI) in detecting depression among men in primary care.

METHODS

At a family doctor's drop-in clinic in Stockholm, Sweden, all men were invited into the study 2 days a week (opportunistic screening). On other days, the men who mentioned mental symptoms were invited (targeted screening). The men filled in BDI, GS and a social questionnaire. The doctor invited the men with BDI > or = 10 and /or GS > or = 13 to a repeat visit. The outcome was depression diagnosed according to DSM-IV and the severity was assessed with the Montgomery-Asberg Depression Rating Scale.

RESULTS

223 men were recruited, 190 by opportunistic and 33 by targeted screening. Seventeen per cent of the men reported an alcohol consumption that might put them at risk. In the opportunistic screening, 23% scored BDI > or = 10 and 14% scored GS > or = 13. The prevalence of depression in the opportunistic screening was 10.5%. The proportion of depressed men in the targeted screening was 60.6%. In total, 40 men were depressed, 63% had a mild and 35% moderate depression. The correlation between the scales was 0.80. The GS identified no additional cases.

CONCLUSIONS

Clinical depression was quite common among those men who often had a high alcohol consumption, indicating an advantage for the GS when screening for depression among men. In primary care, a targeted screening procedure seems to be the most feasible method.

Family history of suicide: a clinical marker for major depression in primary care practice?

BACKGROUND

The aim of this study was to investigate the family history of suicide among primary care patients with or without current major depressive episode (MDE).

METHODS

This study was performed in 2 GP practices in Budapest on 255 consecutively investigated primary care attendees. The diagnosis of current MDE (symptomatic MDE or MDE in partial remission) was made by the Hungarian version of the Primary Care Evaluation of Mental Disorders (PRIME-MD). Family history of suicide was rated as positive where the patients reported at least one first or second degree relative with completed suicide.

RESULTS

Out of the 255 consecutively investigated patients 45 (17.6%) have had current MDE and 24 (9.4%) have had positive family history of suicide. The family history of suicide was significantly more common among patients with current MDE than among those without it (26.6% vs 5.7%, p=0.0001). Fifty percent of patients with, and 14.3% of patients without family history of suicide have had current MDE (p=0.0001).

LIMITATION

Small sample size, and lacking data on fully remitted major depressives as well as on comorbid psychiatric and medical disorders.

CONCLUSION

History of completed suicide among first or second degree relatives could be a good and simple clinical marker for current and lifetime MDE in primary care patients.

Patients with depressive disorder, their co-morbidity, visiting rate and disability in relation to self-evaluation of physical and mental health: a cross-sectional study in family practice

Background

High prevalence of depression among primary care patients has increased the need for more research in this field. The objectives of our study were to analyse how depressed patients evaluate their health; which co-morbid diseases are associated with depression; how depression influences the patients' consultation rate in family practice (FP); how disability is associated with depression; and how depression influences the patients' working ability.

Methods

A cross-sectional study, part of the PREDICT study. The study group was formed of 1094 consecutive patients from 23 FPs across Estonia, aged 18–75 years, attending a FP to consult the family doctor (FD). Occurrence of major depression during six months was estimated using the Depression Section of the Composite International Diagnostic Interview. The medical records of all patients were analysed concerning co-morbid diseases, number of visits to the FD, and disability. Every patient filled in questionnaires to assess health-related risk factors for depression, and the SF-12 Health Survey to assess functioning and the perception of health.

Results

Depression was found in 230 (21%) of the patients. Depressed patients reported less accomplishment owing to emotional problems (OR 1.80; 95% CI 1.18–2.72), being less careful as usual (OR 1.81; 95% CI 1.26–2.60), and having pain that extremely interfered with their normal work (OR 2.50; 95% CI 1.33–4.70) in comparison with non-depressed patients. Also depressed patients were more days on sick-leave (OR 1.00; 95% CI 1.00–1.01) than non-depressed patients. However, analysis of the medical records did not indicate that depressed patients consulted the FD more or had more co-morbid diagnoses than the non-depressed patients.

Conclusion

Depressed patients may have low self-reported functioning due to emotional problems, pain, and their working ability may have decreased; however, the patients of both groups have an equal number of co-morbid diagnoses and their consultation rate is similar.

Screening and diagnosing depression in women visiting GPs' drop in clinic in Primary Health Care

Background

Only half of all depressions are diagnosed in Primary Health Care (PHC). Depression can remain undetected for a long time and entail high costs for care and low quality of life for the individuals. Drop in clinic is a common form of organizing health care; however the visits are short and focus on solving the most urgent problems. The aim of this study was to investigate the prevalence and severity of depression among women visiting the GPs' drop in clinic and to identify possible clues for depression among women.

Methods

The two-stage screening method with "high risk feedback" was used. Beck's Depression Inventory (BDI) was used to screen 155 women visiting two GPs' drop in clinic. Women who screened positive (BDI score ≥10) were invited by the GP to a repeat visit. Major depression (MDD) was diagnosed according to DSM-IV criteria and the severity was assessed with Montgomery-Asberg Depression Rating Scale (MADRS). Women with BDI score <10 constituted a control group. Demographic characteristics were obtained by questionnaire. Chart notations were examined with regard to symptoms mentioned at the index visit and were categorized as somatic or mental.

Results

The two-stage method worked well with a low rate of withdrawals in the second step, when the GP invited the women to a repeat visit. The prevalence of depression was 22.4% (95% CI 15.6–29.2). The severity was mild in 43%, moderate in 53% and severe in 3%. The depressed women mentioned mental symptoms significantly more often (69%) than the controls (15%) and were to a higher extent sick-listed for a longer period than 14 days. Nearly one third of the depressed women did not mention mental symptoms. The majority of the women who screened as false positive for depression had crisis reactions and needed further care from health professionals in PHC. Referrals to a psychiatrist were few and revealed often psychiatric co-morbidity.

Conclusion

The prevalence of previously undiagnosed depression among women visiting GPs' drop in clinic was high. Clues for depression were identified in the depressed women's symptom presentation; they often mention mental symptoms when they visit the GP for somatic reasons e.g. respiratory infections. We suggest that GPs do selective screening for depression when women mention mental symptoms and offer to schedule a repeat visit for follow-up rather than just recommending that the patient return if the mental symptoms do not disappear.

Cost-effectiveness of collaborative care for chronically ill patients with comorbid depressive disorder in the general hospital setting, a randomised controlled trial

BACKGROUND

Depressive disorder is one of the most common disorders, and is highly prevalent in chronically ill patients. The presence of comorbid depression has a negative influence on quality of life, health care costs, self-care, morbidity, and mortality. Early diagnosis and well-organized treatment of depression has a positive influence on these aspects. Earlier research in the USA has reported good results with regard to the treatment of depression with a collaborative care approach and an antidepressant algorithm. In the UK 'Problem Solving Treatment' has proved to be feasible. However, in the general hospital setting this approach has not yet been evaluated.

METHODS/DESIGN

CC: DIM (Collaborative Care: Depression Initiative in the Medical setting) is a two-armed randomised controlled trial with randomisation at patient level. The aim of the trial is to evaluate the treatment of depressive disorder in general hospitals in the Netherlands based on a collaborative care framework, including contracting, 'Problem Solving Treatment', antidepressant algorithm, and manual-guided self-help. 126 outpatients with diabetes mellitus, chronic obstructive pulmonary disease, or cardiovascular diseases will be randomised to either the intervention group or the control group. Patients will be included if they have been diagnosed with moderate to severe depression, based on the DSM-IV criteria in a two-step screening method. The intervention group will receive treatment based on the collaborative care approach; the control group will receive 'care as usual'. Baseline and follow-up measurements (after 3, 6, 9, and 12 months) will be performed by means of questionnaires. The primary outcome measure is severity of depressive symptoms, as measured with the PHQ-9. The secondary outcome measure is the cost-effectiveness of these treatments according to the TiC-P, the EuroQol and the SF-36.

DISCUSSION

Earlier research has indicated that depressive disorder is a chronic, mostly recurrent illness, which tends to cluster with physical comorbidity. Even though the treatment of depressive disorder based on the guidelines for depression is proven effective, these guidelines are often insufficiently adhered to. Collaborative care and 'Problem Solving Treatment' will be specifically tailored to patients with depressive disorders and evaluated in a general hospital setting in the Netherlands.

The influence of educational information on depressed outpatients treated with escitalopram: a semi-naturalistic study

This open-label multicentre semi-naturalistic study in Finland assessed the impact of educational information on efficacy of 16-week treatment with escitalopram (5-20 mg/day) in a patient population suffering from depression. Patients were randomized single blind to receive educational information (n=79) or no information (n=78) in addition to open-label escitalopram treatment. Patients were assessed using the Montgomery-Asberg Depression Rating Scale (MADRS), Clinical Global Impression - Severity and - Improvement (CGI-S and CGI-I), Patient Global Evaluation (PGE), and Hopkins Symptom Checklist (SCL-90) scales. Tolerability was assessed by the incidence of adverse events (AEs). A total of 132 (84%) out of 157 patients completed the study, with similar completer rates in both groups. There was no statistically significant effect of educational information on the efficacy of escitalopram treatment, as measured by MADRS, CGI and PGE. Mean MADRS total score was 25.3 at baseline, corresponding to moderate to severe depression, and decreased to 7.9 at the end of the treatment for both groups. The response rate (> or = 50% reduction in MADRS total score from baseline) was 80% at the end of treatment for both groups. The clinical relevance of the improvement was seen in CGI-I and PGE scores and there was a strong correlation between the two scales, indicating agreement by both patients and investigators. AEs were mostly mild and transient and 11 patients (7.0%) dropped out of the study due to AEs, with similar incidence in both groups. Escitalopram was effective and well tolerated in the treatment of depression over a 16-week period in a semi-naturalistic setting, and an additional effect of educational information could not be shown, possibly due to the high response to treatment.

Detection and treatment of hypertension in general health-care practice: a patient-based study

The aim of this study was to describe the pattern of blood pressure (BP) distribution in a multiethnic primary care practice in relation to sociodemographic characteristics, lifestyle and risk factors. Another aim was to analyse the quality of diagnosis and effectiveness of hypertension (HT) treatment. In all, 470 adult patients (> or =16 years old) who visited the Jordbro Health Centre (JHC), Haninge Municipality, participated in this study. A general questionnaire with questions about sociodemographic characteristics, lifestyle, health status and chronic disease was used. Medical records: information on consultations with the general practitioner and prescriptions were collected from the medical records for the year 2001. Furthermore, a medical examination was performed: this consisted of weight, height, systolic (SBP) and diastolic (DBP) blood pressure, and laboratory analyses including fasting blood glucose, serum cholesterol, serum triglycerides, electrocardiogram and spirometry. Out of 464 patients, 114 (24.6%) reported HT. Among the HT patients, 93 (81.6%) had SBP > or =140 mmHg and 52 (45.6%) DBP > or =90 mmHg. Among the nonhypertensive patients (n=350), 120 (34.3%) had SBP > or =140 mmHg and 50 (14.3%) DBP > or =90 mmHg. Furthermore, there are some patients with high BP who are unknown or undetected. HT treatment among this population is unsatisfactory and greater efforts are required to identify people with high BP and to ensure that they are managed according to the best available evidence.