scholarly journals Overgeneral and Specific Autobiographical Memory Predict the Course of Depression: An Updated Meta-Analysis

2020 ◽  
Author(s):  
David John Hallford ◽  
Danielle Rusanov ◽  
Joseph Yeow ◽  
Tom Joseph Barry
Keyword(s):  
Depressive Symptoms ◽  
Cognitive Process ◽  
Depressive Disorders ◽  
Meta Analysis ◽  
Clinical Samples ◽  
Eligibility Criteria ◽  
Moderating Variables ◽  
Analytic Review ◽  
Course Of Depression

Impairments in retrieving event-level, specific autobiographical memories, termed overgeneral memory (OGM) are recognised as a feature of clinical depression. A previous meta-analytic review (Sumner, Griffith, & Mineka, 2010) assessing how OGM predicts the course of subsequent depressive symptoms showed small, but robust effects for correlations and regression analyses when baseline depressive symptoms were controlled for. We aimed to update this study and examine whether their findings replicate given the decade of research that has been published since. A systematic literature review using the same eligibility criteria as the previous meta-analysis lead to a doubling of eligible studies (31 vs. 15). The results provided more precise estimates of effect sizes, and largely support the finding that OGM predicts the course of depressive symptoms. The effects were generally small, but significantly larger among clinical samples, compared to studies with non-clinical samples. Higher age was associated with stronger effects, while longer follow-up with associated with weaker effects. The findings on other moderating variables that were analysed were mixed. Continued research into this modifiable cognitive process may help to provide an avenue to better understand and treat highly prevalent and impactful depressive disorders.

scholarly journals Overgeneral and specific autobiographical memory predict the course of depression: an updated meta-analysis

2021 ◽  
pp. 1-18
Author(s):  
D. J. Hallford ◽  
D. Rusanov ◽  
J. J. E. Yeow ◽  
T. J. Barry
Keyword(s):  
Depressive Symptoms ◽  
Cognitive Process ◽  
Depressive Disorders ◽  
Meta Analysis ◽  
Clinical Samples ◽  
Eligibility Criteria ◽  
Moderating Variables ◽  
Analytic Review ◽  
Course Of Depression

Abstract Impairments in retrieving event-level, specific autobiographical memories, termed overgeneral memory (OGM), are recognised as a feature of clinical depression. A previous meta-analytic review assessing how OGM predicts the course of subsequent depressive symptoms showed small effects for correlations and regression analyses when baseline depressive symptoms were controlled for. We aimed to update this study and examine whether their findings replicate given the decade of research that has been published since. A systematic literature review using the same eligibility criteria as the previous meta-analysis led to a doubling of eligible studies (32 v. 15). The results provided more precise estimates of effect sizes, and largely support the finding that OGM predicts the course of depressive symptoms. The effects were generally small, but significantly larger among clinical samples, compared to studies with non-clinical samples. There was some evidence that higher age was associated with stronger effects, and longer follow-up was associated with weaker effects. The findings on other moderating variables that were analysed were mixed. Continued research into this modifiable cognitive process may help to provide an avenue to better understand and treat highly prevalent and impactful depressive disorders.

scholarly journals Epidemiology of depressive disorders in people living with hypertension in Africa: a systematic review and meta-analysis

BMJ Open ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. e037975
Author(s):  
Francky Teddy Endomba ◽  
Temgoua Ngou Mazou ◽  
Jean Joel Bigna
Keyword(s):  
Systematic Review ◽  
Depressive Symptoms ◽  
Depressive Disorders ◽  
Data Extraction ◽  
Meta Analysis ◽  
Diagnostic Tools ◽  
Pool Data ◽  
Eligibility Criteria ◽  
Major Depressive Symptoms

ObjectivesBetter knowledge of epidemiology of depressive disorders in people living with hypertension can help to implement pertinent strategies to address its burden. The objective was to estimate the prevalence of depressive disorders and symptoms in people living with hypertension in Africa.DesignSystematic review and meta-analysis.Data sourcesPubMed, EMBASE, African Index Medicus, African Journals OnLine were searched up to 31 January 2020, regardless of the language of publication.Eligibility criteriaWe included studies conducted among adult patients with hypertension (≥18 years) living in Africa and reporting the prevalence of depressive disorders and symptoms.Data extraction and synthesisTwo independent investigators selected studies, extracted data and assessed the methodological quality of included studies by using the tools developed by Joanna Briggs Institute. Multivariate random-effects meta-analysis served to pool data by considering the variability between diagnostic tools used to identify patients with depressive disorders or symptoms.ResultsWe included 11 studies with 5299 adults with hypertension. Data were collected between 2002 and 2017, from South Africa, Nigeria, Ghana, Ethiopia and Burkina Faso. The mean age varied between 50.3 years and 59.6 years. The proportion of men ranged from 28% to 54%. The adjusted prevalence of depressive disorders taking into account the variance between diagnostic tools was 17.9% (95% CI 13.0% to 23.4%). The prevalence of depressive symptoms and major depressive symptoms was 33.3% (95% CI 9.9% to 61.6%) and 7.8% (95% CI 3.0% to 14.5%), respectively. There was heterogeneity attributable to the diagnostic tools for depressive disorders and symptoms. There was no publication bias.ConclusionNotwithstanding the representativeness lack of some (sub) regions of Africa, weakening the generalisability of findings to the entire region; depressive disorders and symptoms are prevalent in people living with hypertension in Africa, indicating that strategies from clinicians, researchers and public health makers are needed to reduce its burden in the region.

Effectiveness of arthroscopic management of idiopathic shoulder stiffness: A meta-analysis

2021 ◽  
pp. 1-8
Author(s):  
Ya-Dong Wang ◽  
Yu-Xiang Ming ◽  
Yong-Hua Pang ◽  
Wei-Nan Chen ◽  
Xu-Hua Zong ◽  
...  
Keyword(s):  
Range Of Motion ◽  
External Rotation ◽  
Meta Analysis ◽  
Eligibility Criteria ◽  
Shoulder Stiffness ◽  
Capsular Release ◽  
Shoulder Range Of Motion ◽  
Arthroscopic Capsular Release ◽  
Shoulder Range

BACKGROUND: Persisting shoulder stiffness adversely affects quality of life by causing pain and motion restrictions especially in patients with diabetes. OBJECTIVE: The aim of this study was to evaluate the outcomes of arthroscopic capsular release in patients with idiopathic shoulder stiffness. METHOD: A literature search was conducted in electronic databases and studies were selected by following precise eligibility criteria. Random-effects meta-analyses were performed to estimate the changes at latest follow-up in scores of the Constant, American Shoulder and Elbow Surgeons (ASES), and University of California at Los Angelis (UCLA) scales, Visual Analogue Scale (VAS), and shoulder range of motion. RESULTS: Nineteen studies were included. The follow-up duration was 42 months [95% confidence interval (CI): 32, 51]. Improvements in scores of the Constant, ASES, UCLA scales, and VAS were 48.3 [95% CI: 38.0, 58.6], 44.6 [95% CI: 24.6, 64.6], 19.3 [95% CI: 16.6, 22.0], and -6.1 [95% CI: -6.9, -5.4] respectively (P< 0.05 all). Improvements in the shoulder range of motion were: abduction 82.0 [95% CI: 65.0, 98.9]; forward flexion 75.9 [95% CI: 59.7, 92.1]; external rotation 43.2 [95% CI: 37.5, 49.0]; and internal rotation 25.4 [95% CI: 15.2, 35.5] degrees; P< 0.05 all). CONCLUSION: Arthroscopic capsular release effectively improves shoulder function in patients with idiopathic shoulder stiffness.

scholarly journals Effects of n-3 Polyunsaturated Fatty Acid Supplementation in the Prevention and Treatment of Depressive Disorders—A Systematic Review and Meta-Analysis

Nutrients ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 1070
Author(s):  
Maike Wolters ◽  
Annkathrin von der Haar ◽  
Ann-Kristin Baalmann ◽  
Maike Wellbrock ◽  
Thomas L. Heise ◽  
...  
Keyword(s):  
Depressive Symptoms ◽  
Treatment Duration ◽  
Depressive Disorders ◽  
Meta Analysis ◽  
Pufa Supplementation ◽  
Depressive Symptomology ◽  
Beneficial Effects ◽  
Randomized Controlled ◽  
Significant Difference

N-3 polyunsaturated fatty acids (PUFAs) have been suggested to affect depressive disorders. This review aims to determine the effect of n-3 PUFAs on depressive symptoms in people with or without diagnosed depression. Medline, PsycINFO, and Cochrane CENTRAL databases were searched for randomized controlled trials (RCTs) assessing the association between n-3 PUFAs and depressive symptoms or disorders as outcomes. A random-effects meta-analysis of standardized mean difference (SMD) with 95% confidence intervals (CI) was performed. Twenty-five studies (7682 participants) were included. Our meta-analysis (20 studies) indicated that n-3 PUFA supplementation lowered depressive symptomology as compared with placebo: SMD = −0.34, 95% CI: −0.55, −0.12, I2 = 86%, n = 5836, but a possible publication bias cannot be ruled out. Subgroup analyses indicated no statistically significant difference by treatment duration of <12 vs. ≥12 weeks, presence of comorbidity, or severity of depressive symptoms. Nevertheless, beneficial effects were seen in the subgroups of studies with longer treatment duration and with no depression and mild to moderate depression. Subgroup analysis by eicosapentaenoic acid (EPA) dosage revealed differences in favor of the lower EPA dosage. Sensitivity analysis including studies with low risk of bias seems to confirm the overall result. Supplementation of n-3 PUFA appears to have a modest beneficial effect on depressive symptomology, although the quality of evidence is still insufficient.

scholarly journals Systematic review and meta-analysis of the prevalence of depressive symptoms, dysthymia and major depressive disorders among homeless people

BMJ Open ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. e040061
Author(s):  
Getinet Ayano ◽  
Asmare Belete ◽  
Bereket Duko ◽  
Light Tsegay ◽  
Berihun Assefa Dachew
Keyword(s):  
Systematic Review ◽  
Depressive Symptoms ◽  
Depressive Disorders ◽  
Meta Analysis ◽  
Random Effect ◽  
Homeless People ◽  
Sensitivity Analyses ◽  
Prevalence Rates ◽  
Major Depressive ◽  
Major Depressive Disorders

ObjectivesTo assess the global prevalence estimates of depressive symptoms, dysthymia and major depressive disorders (MDDs) among homeless people.DesignSystematic review and meta-analysis.Data sourcesDatabases including PubMed, Scopus and Web of Science were systematically searched up to February 2020 to identify relevant studies that have reported data on the prevalence of depressive symptoms, dysthymia and MDDs among homeless people.Eligibility criteriaOriginal epidemiological studies written in English that addressed the prevalence of depressive problems among homeless people.Data extraction and synthesisA random-effect meta-analysis was performed to pool the prevalence estimated from individual studies. Subgroup and sensitivity analyses were employed to compare the prevalence across the groups as well as to identify the source of heterogeneities. The Joanna Briggs Institute’s quality assessment checklist was used to measure the study quality. Cochran’s Q and the I2 test were used to assess heterogeneity between the studies.ResultsForty publications, including 17 215 participants, were included in the final analysis. This meta-analysis demonstrated considerably higher prevalence rates of depressive symptoms 46.72% (95% CI 37.77% to 55.90%), dysthymia 8.25% (95% CI 4.79% to 11.86%), as well as MDDs 26.24% (95% CI 21.02% to 32.22%) among homeless people. Our subgroup analysis showed that the prevalence of depressive symptoms was high among younger homeless people (<25 years of age), whereas the prevalence of MDD was high among older homeless people (>50 years of age) when compared with adults (25–50 years).ConclusionThis review showed that nearly half, one-fourth and one-tenth of homeless people are suffering from depressive symptoms, dysthymia and MDDs, respectively, which are notably higher than the reported prevalence rates in the general population. The findings suggest the need for appropriate mental health prevention and treatment strategies for this population group.

scholarly journals Long-term outcomes of psychological treatment for posttraumatic stress disorder: a systematic review and meta-analysis

2021 ◽  
pp. 1-11
Author(s):  
Maxi Weber ◽  
Sarah Schumacher ◽  
Wiebke Hannig ◽  
Jürgen Barth ◽  
Annett Lotzin ◽  
...  
Keyword(s):  
Systematic Review ◽  
Depressive Symptoms ◽  
Stress Disorder ◽  
Psychological Treatment ◽  
Meta Analysis ◽  
Effect Sizes ◽  
Long Term Outcomes ◽  
Psychological Treatments

Abstract Several types of psychological treatment for posttraumatic stress disorder (PTSD) are considered well established and effective, but evidence of their long-term efficacy is limited. This systematic review and meta-analysis aimed to investigate the long-term outcomes across psychological treatments for PTSD. MEDLINE, Cochrane Library, PTSDpubs, PsycINFO, PSYNDEX, and related articles were searched for randomized controlled trials with at least 12 months of follow-up. Twenty-two studies (N = 2638) met inclusion criteria, and 43 comparisons of cognitive behavioral therapy (CBT) were available at follow-up. Active treatments for PTSD yielded large effect sizes from pretest to follow-up and a small controlled effect size compared with non-directive control groups at follow-up. Trauma-focused treatment (TFT) and non-TFT showed large improvements from pretest to follow-up, and effect sizes did not significantly differ from each other. Active treatments for comorbid depressive symptoms revealed small to medium effect sizes at follow-up, and improved PTSD and depressive symptoms remained stable from treatment end to follow-up. Military personnel, low proportion of female patients, and self-rated PTSD measures were associated with decreased effect sizes for PTSD at follow-up. The findings suggest that CBT for PTSD is efficacious in the long term. Future studies are needed to determine the lasting efficacy of other psychological treatments and to confirm benefits beyond 12-month follow-up.

Comparative Efficacy of Seven Exercise interventions for Symptoms of depression in college students: a network of meta-analysis

2019 ◽  
Author(s):  
Shengyu Guo ◽  
Fuying Li ◽  
Yan Yang ◽  
Ling Chen
Keyword(s):  
College Students ◽  
Depressive Symptoms ◽  
Usual Care ◽  
Tai Chi ◽  
Exercise Intervention ◽  
Meta Analysis ◽  
Eligibility Criteria ◽  
Exercise Interventions ◽  
Symptoms Of Depression ◽  
Depressed College Students

Abstract Background Depression among college students is common, exercise interventions are valued as one of the most widely prescribed interventions for depressed college students, however, it is especially difficult for university administrators to determine which exercise intervention is most effective, and efficacy of exercise interventions among depressed college students have not been evaluated. Objectives To systematically review and compare the efficacy of Seven Exercise interventions for Symptoms of depression in college students. Method A network of meta-analysis was conducted to fill the objectives. PubMed, Embase databases, and two Chinese language electronic databases WANFANG and CNKI were searched for the related articles. Eligibility criteria Randomized controlled trials comparing the efficacy of Seven Exercise interventions with usual care of college students with depression were included in the review. Main outcomes The Primary outcome of the present study were standardized mean difference(SMD) and the mean change of depressive symptoms. Results 14 trials were identified, including 2010 depressed college students. The result of direct meta-analysis of this review indicated exercise interventions overall had a significantly lower mean depression scores (SMD=-1.13) when compared with usual care. The result of NMA indicated when comparing with badminton intervention, yoga(SMD=-7.7, 95%CI -14 to -0.93) and tai chi (SMD=-9.4, 95%CI -16 to -2.7) can significantly decrease depression scores of the depressed college students. The rank of seven exercise interventions with respect to efficiently decrease symptom of depressed undergraduates was Tai chi > Yoga > Volleyball > Dance > Run> Basketball> Badminton, respectively. Conclusions Tai chi exhibited the highest probability that became the most efficacy intervention among the comparions, and Yoga showed the second most effectiveness to alleviate depressive symptoms of depressed college students, and dance ranks the third, followed by run, volleyball, basketball, badminton respectively.

scholarly journals Subclinical thyroid dysfunction and depressive symptoms: protocol for a systematic review and individual participant data meta-analysis of prospective cohort studies

BMJ Open ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. e029716
Author(s):  
Lea Wildisen ◽  
Elisavet Moutzouri ◽  
Shanthi Beglinger ◽  
Lamprini Syrogiannouli ◽  
Anne R Cappola ◽  
...  
Keyword(s):  
Systematic Review ◽  
Depressive Symptoms ◽  
Cohort Studies ◽  
Prospective Cohort ◽  
Thyroid Dysfunction ◽  
Meta Analysis ◽  
Individual Participant Data ◽  
Prospective Cohort Studies ◽  
Individual Participant

IntroductionProspective cohort studies on the association between subclinical thyroid dysfunction and depressive symptoms have yielded conflicting findings, possibly because of differences in age, sex, thyroid-stimulating hormone cut-off levels or degree of baseline depressive symptoms. Analysis of individual participant data (IPD) may help clarify this association.Methods and analysisWe will conduct a systematic review and IPD meta-analysis of prospective studies on the association between subclinical thyroid dysfunction and depressive symptoms. We will identify studies through a systematic search of the literature in the Ovid Medline, Ovid Embase, Cochrane Central Register of Controlled Trials (CENTRAL) and Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases from inception to April 2019 and from the Thyroid Studies Collaboration. We will ask corresponding authors of studies that meet our inclusion criteria to collaborate by providing IPD. Our primary outcome will be depressive symptoms at the first available individual follow-up, measured on a validated scale. We will convert all the scores to the Beck Depression Inventory scale. For each cohort, we will estimate the mean difference of depressive symptoms between participants with subclinical hypothyroidism or hyperthyroidism and control adjusted for depressive symptoms at baseline. Furthermore, we will adjust our multivariable linear regression analyses for age, sex, education and income. We will pool the effect estimates of all studies in a random-effects meta-analysis. Heterogeneity will be assessed by I2. Our secondary outcomes will be depressive symptoms at a specific follow-up time, at the last available individual follow-up and incidence of depression at the first, last and at a specific follow-up time. For the binary outcome of incident depression, we will use a logistic regression model.Ethics and disseminationFormal ethical approval is not required as primary data will not be collected. Our findings will have considerable implications for patient care. We will seek to publish this systematic review and IPD meta-analysis in a high-impact clinical journal.PROSPERO registration numberCRD42018091627.

scholarly journals Impact of surgical maxillomandibular advancement upon pharyngeal airway volume and the apnoea–hypopnoea index in the treatment of obstructive sleep apnoea: systematic review and meta-analysis

2019 ◽  
Vol 6 (1) ◽  
pp. e000402 ◽  
Author(s):  
Maria Giralt-Hernando ◽  
Adaia Valls-Ontañón ◽  
Raquel Guijarro-Martínez ◽  
Jorge Masià-Gridilla ◽  
Federico Hernández-Alfaro
Keyword(s):  
Systematic Review ◽  
Obstructive Sleep Apnoea ◽  
Meta Analysis ◽  
Sleep Apnoea ◽  
Eligibility Criteria ◽  
Pharyngeal Airway ◽  
Maxillomandibular Advancement ◽  
Subsequent Decrease ◽  
Obstructive Sleep

BackgroundA systematic review was carried out on the effect of surgical maxillomandibular advancement (MMA) on pharyngeal airway (PA) dimensions and the apnoea–hypopnoea index (AHI) in the treatment of obstructive sleep apnoea (OSA), with the aim of determining whether increased PA in the context of MMA is the main factor conditioning the subsequent decrease in AHI.MethodsA search was made of the PubMed, Embase, Google Scholar and Cochrane databases. A total of 496 studies were identified. The inclusion criteria were a diagnosis of moderate to severe OSA, MMA success evaluated by polysomnography, reporting of the magnitude of MMA achieved, PA increase and a minimum follow-up of 6 months.ResultsFollowing application of the eligibility criteria, eight articles were included. Metaregression analysis showed MMA to significantly increase both pharyngeal airway volume (PAV) (mean 7.35 cm3 (range 5.35–9.34)) and pharyngeal airway space (mean 4.75 mm (range 3.15–6.35)) and ensure a final AHI score below the threshold of 20 (mean 12.9 events/hour).ConclusionsAlthough subgroup analysis showed MMA to be effective in treating OSA, more randomised trials are needed to individualise the required magnitude and direction of surgical movements in each patient, and to standardise the measurements of linear and nonlinear PAV parameters.

scholarly journals Effects of yoga on depressive symptoms in people with mental disorders: a systematic review and meta-analysis

2020 ◽  
pp. bjsports-2019-101242 ◽  
Author(s):  
Jacinta Brinsley ◽  
Felipe Schuch ◽  
Oscar Lederman ◽  
Danielle Girard ◽  
Matthew Smout ◽  
...  
Keyword(s):  
Systematic Review ◽  
Depressive Symptoms ◽  
Mental Disorders ◽  
Mental Disorder ◽  
Meta Analysis ◽  
Attention Control ◽  
Control Treatment ◽  
Post Traumatic Stress ◽  
Eligibility Criteria ◽  
Treatment As Usual

ObjectiveTo assess whether physically active yoga is superior to waitlist control, treatment as usual and attention control in alleviating depressive symptoms in people with a diagnosed mental disorder recognised by the Diagnostic and Statistical Manual of Mental Disorders (DSM).DesignSystematic review and meta-analysis following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines.Data sourcesData were obtained from online databases (MEDLINE, EMBASE, PsychINFO, CENTRAL, EMCARE, PEDro). The search and collection of eligible studies was conducted up to 14 May 2019 (PROSPERO registration No CRD42018090441).Eligibility criteria for selecting studiesWe included randomised controlled trials with a yoga intervention comprising ≥50% physical activity in adults with a recognised diagnosed mental disorder according to DSM-3, 4 or 5.Results19 studies were included in the review (1080 participants) and 13 studies were included in the meta-analysis (632 participants). Disorders of depression, post-traumatic stress, schizophrenia, anxiety, alcohol dependence and bipolar were included. Yoga showed greater reductions in depressive symptoms than waitlist, treatment as usual and attention control (standardised mean difference=0.41; 95% CI −0.65 to −0.17; p<0.001). Greater reductions in depressive symptoms were associated with higher frequency of yoga sessions per week (β=−0.44, p<0.01).

Sign in / Sign up

Export Citation Format

Share Document