Test-retest reliability of schizoaffective disorder compared with schizophrenia, bipolar disorder, and unipolar depression-a systematic review and meta-analysis

2015 ◽  
Vol 17 (7) ◽  
pp. 753-768 ◽  
Author(s):  
Hanno Santelmann ◽  
Jeremy Franklin ◽  
Jana Bußhoff ◽  
Christopher Baethge
Keyword(s):  
Systematic Review ◽  
Bipolar Disorder ◽  
Schizoaffective Disorder ◽  
Meta Analysis ◽  
Unipolar Depression ◽  
Retest Reliability ◽  
Test Retest Reliability

scholarly journals Test-Retest Reliability of Five Times Sit to Stand Test (FTSST) in Adults: A Systematic Review and Meta-Analysis

Biology ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 510
Author(s):  
Laura Muñoz-Bermejo ◽  
José Carmelo Adsuar ◽  
María Mendoza-Muñoz ◽  
Sabina Barrios-Fernández ◽  
Miguel A. Garcia-Gordillo ◽  
...  
Keyword(s):  
Systematic Review ◽  
Lower Limb ◽  
Balance Control ◽  
Meta Analysis ◽  
Functional Independence ◽  
Lower Limbs ◽  
Retest Reliability ◽  
Stand Test ◽  
Sit To Stand ◽  
Test Retest Reliability

Functional independence in adults is conditioned by lower limb muscle strength. Thus, it seems important to assess lower limb strength using reliable and easy to reproduce measurements. The purpose of this study was to conduct a systematic review and meta-analysis to collect studies that examined the test-retest reliability of the Five Times Sit to Stand Test (FTSST) in adults. The search was conducted in PubMed, Web of Science, and Scopus databases, including all studies published up to 28 December 2020. To be included, studies had to include relative reliability scores (ICC) and maximum torque or standard error of measurements (SEM) of FTSST. A total of 693 studies were initially identified, but only 8 met the eligibility criteria and were included in the meta-analysis, covering a total of 14 groups with 400 participants. Relative inter-rater reliability results (ICC = 0.937, p < 0.001, n = 400) revealed excellent reliability of FTSST to assess sitting and standing performance, lower limbs strength and balance control. Conclusion: The Five Times Sit to Stand Test is a highly reliable tool for assessing lower limbs strength, balance control, and mobility in both healthy adults and those with pathologies.

scholarly journals Reliability, and Convergent and Discriminant Validity of Gaming Disorder Scales: A Meta-Analysis

2021 ◽  
Vol 12 ◽  
Author(s):  
Seowon Yoon ◽  
Yeji Yang ◽  
Eunbin Ro ◽  
Woo-Young Ahn ◽  
Jueun Kim ◽  
...  
Keyword(s):  
Systematic Review ◽  
Internet Addiction ◽  
Discriminant Validity ◽  
Meta Analysis ◽  
Effect Sizes ◽  
Gaming Disorder ◽  
Reliability Generalization ◽  
Retest Reliability ◽  
Convergent And Discriminant Validity ◽  
Test Retest Reliability

Background: An association between gaming disorder (GD) and the symptoms of common mental disorders is unraveled yet. In this preregistered study, we quantitatively synthesized reliability, convergent and discriminant validity of GD scales to examine association between GD and other constructs.Methods: Five representative GD instruments (GAS-7, AICA, IGDT-10, Lemmens IGD-9, and IGDS9-SF) were chosen based on recommendations by the previous systematic review study to conduct correlation meta-analyses and reliability generalization. A systematic literature search was conducted through Pubmed, Proquest, Embase, and Google Scholar to identify studies that reported information on either reliability or correlation with related variables. 2,124 studies were full-text assessed as of October 2020, and 184 were quantitatively synthesized. Conventional Hedges two-level meta-analytic method was utilized.Results: The result of reliability generalization reported a mean coefficient alpha of 0.86 (95% CI = 0.85–0.87) and a mean test-retest estimate of 0.86 (95% CI = 0.81–0.89). Estimated effect sizes of correlation between GD and the variables were as follows: 0.33 with depression (k = 45; number of effect sizes), 0.29 with anxiety (k = 37), 0.30 with aggression (k = 19), –0.22 with quality of life (k = 18), 0.29 with loneliness (k = 18), 0.56 with internet addiction (k = 20), and 0.40 with game playtime (k = 53), respectively. The result of moderator analyses, funnel and forest plots, and publication bias analyses were also presented.Discussion and Conclusion: All five GD instruments have good internal consistency and test-retest reliability. Relatively few studies reported the test-retest reliability. The result of correlation meta-analysis revealed that GD scores were only moderately associated with game playtime. Common psychological problems such as depression and anxiety were found to have a slightly smaller association with GD than the gaming behavior. GD scores were strongly correlated with internet addiction. Further studies should adopt a rigorous methodological procedure to unravel the bidirectional relationship between GD and other psychopathologies.Limitations: The current study did not include gray literature. The representativeness of the five tools included in the current study could be questioned. High heterogeneity is another limitation of the study.Systematic Review Registration: [https://www.crd.york.ac.uk/PROSPERO/], identifier [CRD42020219781].

scholarly journals Cellular calcium in bipolar disorder: systematic review and meta-analysis

2019 ◽  
Author(s):  
Paul J. Harrison ◽  
Nicola Hall ◽  
Arne Mould ◽  
Noura Al-Juffali ◽  
Elizabeth M. Tunbridge
Keyword(s):  
Systematic Review ◽  
Bipolar Disorder ◽  
Effect Size ◽  
Bipolar Depression ◽  
Meta Analysis ◽  
Calcium Signalling ◽  
Unipolar Depression ◽  
Medium Effect ◽  
Cellular Calcium ◽  
Intracellular Ca

AbstractCalcium signalling has long been implicated in bipolar disorder, especially by reports of altered intracellular calcium ion concentrations ([Ca2+]). However, the evidence has not been appraised critically. We carried out a systematic review and meta-analysis of studies of cellular calcium indices in bipolar disorder. 2281 records were identified and 117 screened, of which 32 were eligible and 21 were suitable for meta-analyses. The latter each involved up to 642 patients and 404 control subjects. We found that basal free intracellular [Ca2+] is increased in bipolar disorder, both in platelets and in lymphocytes. The effect size is 0.55, with an estimated elevation of 29%. It is observed in medication-free patients. It is present in mania and bipolar depression, but data are equivocal for euthymia. Cells from bipolar disorder individuals also show an enhanced [Ca2+] response to stimulation with 5-HT or thrombin, by an estimated 25%, with an effect size of 0.63. In studies which included other diagnoses, intracellular basal [Ca2+] was higher in bipolar disorder than in unipolar depression, but not significantly different from schizophrenia. Functional parameters of cellular Ca2+ (e.g. calcium transients), and neuronal [Ca2+], have been much less investigated, and no firm conclusions can be drawn. In summary, there is a robust, medium effect size elevation of basal and stimulated free intracellular [Ca2+] in bipolar disorder. The results suggest altered calcium functioning in the disorder, and encourage further investigations into the underlying mechanisms, and the implications for pathophysiology and therapeutics.

DSM-III criteria for affective disorders and schizophrenia : A preliminary appraisal using family interview findings

1988 ◽  
Vol 3 (3) ◽  
pp. 159-169
Author(s):  
H.G. Pope ◽  
B.M. Cohen ◽  
J.F. Lipinski ◽  
D. Yurgelun-Todd
Keyword(s):  
Bipolar Disorder ◽  
Affective Disorder ◽  
Schizoaffective Disorder ◽  
Psychotic Disorders ◽  
Diagnostic Interview ◽  
Diagnostic Categories ◽  
Family Interview ◽  
Small Test ◽  
Test Retest Reliability ◽  
Interview Studies

SummaryWe performed a blind family interview study of 226 first-degree relatives of 63 probands meeting DSM-III criteria for schizophrenia, schizoaffective disorder, and bipolar disorder, as diagnosed by the National Institute ot Mental Health Diagnostic Interview Schedule (DIS). A small test-retest reliability study demonstrated good agreement between the proband interviewer and the principal family interviewer for the major diagnostic categories of psychotic disorders. Excellent compliance was obtained, with 85% of living relatives interviewed personally.Three principal findings emerged front the study. First, as expected, bipolar disorder, as defined by DSM-III, displayed a strong familial comportent, comparable to that found by many studies using criteria other than those of DSM-III. Second, patients meeting DSM-III criteria for schizophrenia and schizoaffective disorder displayed a low familial prevalence of schizophrenia. Although initially suprising, this finding is in agreement with the results of several other recent lantily studies of schizophrenia. Upon comparing our results with those of other recent family studies of schizophrenia, it appears that the familial component in schizophrenia tnay be less than was estimated by earlier studies using older and “broader” definitions of schizophrenia.Third, we found that patients meeting DSM-III criteria for schizophrenia appeared genetically heterogeneous. Those who had displayed a superimposed full affective syndrome at some tinte in the course of their illness, together with those probands meeting DSM-III criteria for schizoaffective disorder, displayed a high familial prevalence of major affective disorder, similar to that found in the families of the bipolar probands. On the other hand, “pure” DSM-III schizophrenie probands, who had never experienced a superimposed full affective syndrome, displayed a low familial prevalence of major affective disorder, similar to that found in the general population. These findings favor the possibility that probands meeting DSM-III criteria for schizophrenia, but displaying a superimposed full affective syndrome, may in sonie cases have a disorder genetically relatcd to major affective disorder.Further prospective family interview studies, using DSM-III criteria and larger samples, will be necessary to test these preliminary impressions.

Clozapine in bipolar disorder: A systematic review and meta-analysis

2020 ◽  
Vol 125 ◽  
pp. 21-27 ◽  
Author(s):  
Andre Delgado ◽  
Jorge Velosa ◽  
Junyu Zhang ◽  
Serdar M. Dursun ◽  
Flavio Kapczinski ◽  
...  
Keyword(s):  
Systematic Review ◽  
Bipolar Disorder ◽  
Meta Analysis
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