OOIR: Observatory of International Research

Papers

(The TQCC of Acta Psychiatrica Scandinavica is 8. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-04-01 to 2024-04-01.)

Article	Citations
Anxiety and depression in the Republic of Ireland during the COVID‐19 pandemic	367
Lifestyle behaviours during the COVID‐19 – time to connect	171
Childhood trauma and adult mental disorder: A systematic review and meta‐analysis of longitudinal cohort studies	162
Therapeutic effects of classic serotonergic psychedelics: A systematic review of modern‐era clinical studies	134
The effects of psychotherapies for depression on response, remission, reliable change, and deterioration: A meta‐analysis	99
Adverse events in meditation practices and meditation‐based therapies: a systematic review	79
Mental health in people with minority sexual orientations: A meta‐analysis of population‐based studies	70
Inflammation in first‐episode psychosis: The contribution of inflammatory biomarkers to the emergence of negative symptoms, a systematic review and meta‐analysis	61
National observation of death by suicide in the first 3 months under COVID‐19 pandemic	54
The gut microbiome and inflammation in obsessive‐compulsive disorder patients compared to age‐ and sex‐matched controls: a pilot study	52
Impact of smoking behavior on clozapine blood levels – a systematic review and meta‐analysis	51
The role of mental health home hospitalization care during the COVID‐19 pandemic	49
Severe mental illness is associated with increased mortality and severe course of COVID‐19	45
Assessing mental health apps marketplaces with objective metrics from 29,190 data points from 278 apps	42
Mental disorders, psychopharmacological treatments, and mortality in 2150 COVID‐19 Spanish inpatients	42
Functional and cognitive impairment in the first episode of depression: A systematic review	41
Male to female ratios in autism spectrum disorders by age, intellectual disability and attention‐deficit/hyperactivity disorder	40
Psychiatric Admissions, Referrals, and Suicidal Behavior Before and During the COVID‐19 Pandemic in Denmark: A Time‐Trend Study	40
Employment among people with schizophrenia or bipolar disorder: A population‐based study using nationwide registers	38
An evaluation of the variation and underuse of clozapine in the United Kingdom	37
Sleep deprivation as treatment for depression: Systematic review and meta‐analysis	34
Efficacy, acceptability, and tolerability of all available treatments for insomnia in the elderly: a systematic review and network meta‐analysis	33
Brain age in mood and psychotic disorders: a systematic review and meta‐analysis	32
Increased C‐reactive protein concentration and suicidal behavior in people with psychiatric disorders: A systematic review and meta‐analysis	32
When and how to use lithium	32

Combining machine learning algorithms for prediction of antidepressant treatment response	31
COVID‐19‐related self‐harm and suicidality among individuals with mental disorders	31
Prevalence of attention‐deficit/hyperactivity disorder in people with mood disorders: A systematic review and meta‐analysis	30
Clozapine levels as a predictor for therapeutic response: A systematic review and meta‐analysis	29
Mindfulness‐based cognitive therapy for prevention and time to depressive relapse: Systematic review and network meta‐analysis	29
War exposure, posttraumatic stress disorder, and complex posttraumatic stress disorder among parents living in Ukraine during the Russian war	29
Autism comorbidities show elevated female‐to‐male odds ratios and are associated with the age of first autism diagnosis	28
The relationship between plasma clozapine concentration and clinical outcome: a cross‐sectional study	28
Risk factors for clozapine‐induced myocarditis and cardiomyopathy: A systematic review and meta‐analysis	28
Randomized controlled trial of multi‐modular motion‐assisted memory desensitization and reconsolidation (3MDR) for male military veterans with treatment‐resistant post‐traumatic stress disorder	27
A systematic review and pooled, patient‐level analysis of predictors of mortality in neuroleptic malignant syndrome	26
High suicide rates during psychiatric inpatient stay and shortly after discharge	26
Adherence to clozapine vs. other antipsychotics in schizophrenia	25
Neonatal outcome and adaption after in utero exposure to antidepressants: A systematic review and meta‐analysis	24
Pneumonia risk: approximately one‐third is due to clozapine and two‐thirds is due to treatment‐resistant schizophrenia	24
Non‐suicidal self‐injury and its co‐occurrence with suicidal behavior: An epidemiological‐study among adolescents and young adults	24
Clinically meaningful changes on depressive symptom measures and patient‐reported outcomes in patients with treatment‐resistant depression	23
Recognition and management of clozapine adverse effects: A systematic review and qualitative synthesis	23
Morbidity and mortality in schizophrenia with comorbid substance use disorders	23
The neuroleptic malignant syndrome—a systematic case series analysis focusing on therapy regimes and outcome	23
Deep brain stimulation versus ablative surgery for treatment‐refractory obsessive‐compulsive disorder: A meta‐analysis	22
Trauma‐focused psychotherapies for post‐traumatic stress disorder: A systematic review and network meta‐analysis	22
Hippocampal volume and memory impairment after electroconvulsive therapy in patients with depression	21
In search of a dose–response relationship in SSRIs—a systematic review, meta‐analysis, and network meta‐analysis	21
The psychological consequences of the Ukraine war: What we know, and what we have to learn	21
Five‐year mortality of severely malnourished patients with chronic anorexia nervosa admitted to a medical unit	21
Metabolomic profiles discriminating anxiety from depression	20
Evening chronotype, disordered eating behavior, and poor dietary habits in bipolar disorder	20
Elevated lipids are associated with reduced regional brain structure in youth with bipolar disorder	20
Oral contraceptives and the serotonin 4 receptor: a molecular brain imaging study in healthy women	20
How to treat mania	20
Reducing the rate of psychiatric re‐admissions in bipolar disorder using smartphones—The RADMIS trial	19
Adiposity in schizophrenia: A systematic review and meta‐analysis	19
Cognitive change after electroconvulsive therapy in mood disorders measured with the Montreal Cognitive Assessment	19
Cognitive subgroups in first episode bipolar I disorder: Relation to clinical and brain volumetric variables	18
Trajectories of suicidal ideation after first‐episode psychosis: a growth mixture modeling approach	18
Parenthood is associated with lower suicide risk: a register‐based cohort study of 1.5 million Swedes	18
Does lithium prevent relapse following successful electroconvulsive therapy for major depression? A systematic review and meta‐analysis	18
Optimizing psychiatric care during the COVID‐19 pandemic	18
Use of hypnotic drugs among children, adolescents, and young adults in Scandinavia	17
A systematic review and meta‐analysis of treatments for rapid cycling bipolar disorder	17
Time course of symptoms in posttraumatic stress disorder with delayed expression: A systematic review	17
Cognitive and emotional empathy in individuals at clinical high risk of psychosis	17
Cognitive performance in older‐age bipolar disorder: Investigating psychiatric characteristics, cardiovascular burden and psychotropic medication	17
Prevalence and predictors of ICD‐11 posttraumatic stress disorder and complex PTSD in young people	16
A generalizable speech emotion recognition model reveals depression and remission	16
The effects of ketamine on typical and atypical depressive symptoms	16
Narcolepsy and psychosis: A systematic review	16
Hospitalizations for suicide attempt during the first COVID‐19 lockdown in France	16
Heart's tale of trauma: Fear‐conditioned heart rate changes in post‐traumatic stress disorder	16

Early identification of bipolar disorder among young adults – a 22‐year community birth cohort	16
Clozapine and mortality: A comparison with other antipsychotics in a nationwide Danish cohort study	15
Lithium concentration and recurrence risk during maintenance treatment of bipolar disorder: Multicenter cohort and meta‐analysis	15
Relapse after abrupt discontinuation of maintenance electroconvulsive therapy during the COVID‐19 pandemic	15
Is social support pre‐treatment associated with prognosis for adults with depression in primary care?	15
Genome‐wide association study of the sensitivity to environmental stress and adversity neuroticism cluster	15
Cardiometabolic risk prediction algorithms for young people with psychosis: a systematic review and exploratory analysis	14
Encouraging participation in colorectal cancer screening for people with schizophrenia: A randomized controlled trial	14
How and when to treat the most common adverse effects of antipsychotics: Expert review from research to clinical practice	14
Effectiveness of maintenance electroconvulsive therapy—Evidence from modifications due to the COVID‐19 pandemic	14
Blood biomarker levels of methylation capacity in autism spectrum disorder: a systematic review and meta‐analysis	14
Demographic and clinical characteristics of lithium‐treated older adults with bipolar disorder	14
Temporal changes in sex‐ and age‐specific incidence profiles of mental disorders—A nationwide study from 1970 to 2016	13
Does cannabis use in adolescence predict self‐harm or suicide? Results from a Finnish Birth Cohort Study	13
Effect of age on the relative efficacy of clozapine in schizophrenia	13
Posttraumatic stress disorder in time of COVID‐19: Trauma or not trauma, is that the question?	13
A meta‐analysis of the relationship between parental death in childhood and subsequent psychiatric disorder	13
Longitudinal association between binge eating and metabolic syndrome in adults: Findings from the ELSA‐Brasil cohort	13
A systematic review and meta‐analysis of delayed help‐seeking, delayed diagnosis and duration of untreated illness in bipolar disorders	13
Adolescents’ knowledge of a peer's non‐suicidal self‐injury and own non‐suicidal self‐injury and suicidality	13
The polygenic risk for obsessive‐compulsive disorder is associated with the personality trait harm avoidance	13
Neurocognitive functioning after electroconvulsive therapy in late‐life depression: A 4‐year prospective study	12
Oral health self‐care behaviours in serious mental illness: A systematic review and meta‐analysis	12
Decreased oxytocin plasma levels and oxytocin receptor expression in borderline personality disorder	12
Clinical practice guidelines with recommendations for peripartum depression: A European systematic review	12
Prevalence and risk factors of self‐reported psychotic experiences among high school and college students: A systematic review, meta‐analysis, and meta‐regression	12
Refined diagnostic criteria for the bipolar disorders: phase two of the AREDOC project	12
A nationwide population‐based longitudinal study mapping psychiatric disorders during lifetime in siblings to patients with bipolar disorder	11
Mood stabilizers and risk of all‐cause, natural, and suicide mortality in bipolar disorder: A nationwide cohort study	11
Sustained remission from perinatal depression after bright light therapy: A pilot randomised, placebo‐controlled trial	11
Toward staging differentiation for posttraumatic stress disorder treatment	11
Pharmacological interventions to diminish cognitive side effects of electroconvulsive therapy: A systematic review and meta‐analysis	11
Guidelines improve patient outcomes in specialised mental health care: A systematic review and meta‐analysis	11
Monitoring for myocarditis during treatment initiation with clozapine	11
Antipsychotic utilization trajectories three years after initiating or reinitiating treatment of schizophrenia: A state sequence analysis approach	11
Global fractional anisotropy predicts transition to psychosis after 12 months in individuals at ultra‐high risk for psychosis	10
Bipolar disorder and frontotemporal dementia: A systematic review	10
Suicide research and prevention during and after the COVID‐19 pandemic	10
Meta‐analysis of sleep deprivation in the acute treatment of bipolar depression	10
Polypharmacy as maintenance treatment in bipolar illness: A systematic review	10
Mirtazapine exposure in pregnancy and fetal safety: A nationwide cohort study	10
Self‐reported exercise frequency and PTSD: results from the National Health and Resilience in Veterans Study	10
Educational needs and psychoeducation interventions in clozapine users: a narrative review	10
Childhood adversity and borderline personality disorder. Analyses complementing the meta‐analysis by Porter et al. (2020)	10
Suicidal ideation and ECT, ECT and suicidal ideation: A register study	10
Non‐alcoholic fatty liver disease in a sample of individuals with bipolar disorders: results from the FACE‐BD cohort	10
Twenty‐year medication use trends in first‐episode bipolar disorder	10
Clozapine and COVID‐19 Vaccination: Effects on blood levels and leukocytes. An observational cohort study	10
Month of birth and mental disorders: A population‐based study and validation using global meta‐analysis	9
The risk of dementia in patients using psychotropic drugs: Antidepressants, mood stabilizers or antipsychotics	9
Agreement between survey‐ and register‐based measures of depression in Denmark	9
Childhood sexual abuse in patients with severe mental Illness: Demographic, clinical and functional correlates	9
The longitudinal trajectory of emotion regulation and associated neural activity in patients with bipolar disorder: A prospective fMRI study	9
Trauma exposure and co‐occurring ICD‐11 post‐traumatic stress disorder and complex post‐traumatic stress disorder in adults with lived experience of psychiatric disorder	9
Functional and structural brain abnormalities in substance use disorder: A multimodal meta‐analysis of neuroimaging studies	9
White matter microstructure and connectivity in patients with obsessive‐compulsive disorder and their unaffected siblings	9
Structural brain abnormalities associated with cognitive impairments in bipolar disorder	9
Costs of schizotypal disorder: A matched‐controlled nationwide register‐based study of patients and spouses	9
Moving forward with clozapine	9
Toward an empirically based Developmental Trauma Disorder diagnosis and semi‐structured interview for children: The DTD field trial replication	8
The validity of child and adolescent depression diagnoses in the Danish psychiatric central research register	8
Validity of the modular assessment of risk for imminent suicide in predicting short‐term suicidality	8
Real‐world evidence of age‐independent electroconvulsive therapy efficacy: A retrospective cohort study	8
Mortality and care of eating disorders	8
Antidepressant use during pregnancy and risk of adverse neonatal outcomes: A comprehensive investigation of previously identified associations	8
Association between preeclampsia and autism spectrum disorder and attention deficit hyperactivity disorder: an intergenerational analysis	8
Clinical correlates of seasonality in bipolar disorder: A specifier that needs specification?	8
Increased maternal new‐onset psychiatric disorders after delivering a child with a major anomaly: a cohort study	8
Risk of psychiatric diagnoses in children and adolescents of parents with torture trauma and war trauma	8
Association between childhood maltreatment and the clinical course of bipolar disorders: A survival analysis of mood recurrences	8
Psychotropic medication use in pediatric population during COVID‐19 pandemic	8
Reporting trigger factors for (hypo)manic episodes in bipolar disorder: association with personality and prognosis	8
Antidepressants and quality of life in patients with major depressive disorder – Systematic review and meta‐analysis of double‐blind, placebo‐controlled RCTs	8
Relapse following bitemporal and high‐dose right unilateral electroconvulsive therapy for major depression	8
Association between childhood maltreatment and social functioning in individuals with affective disorders: A systematic review and meta‐analysis	8
Attachment insecurity partially mediates the relationship between childhood trauma and depression severity in bipolar disorder	8
The temporal association between incident late‐life depression and incident dementia	8
Childhood trauma and treatment outcomes during mood‐stabilising treatment with lithium or quetiapine among outpatients with bipolar disorder	8