Towards the correlates of stressful life events as precipitants of obsessive-compulsive disorder: a systematic review and metanalysis.

Obsessive-compulsive disorder (OCD) is a prevalent condition with multifactorial etiology involving genetic and environmental factors. The present study aims to summarize the correlates of stressful life events (SLEs) in OCD by reviewing studies comparing OCD associated or not with SLEs before its onset. To do so, a systematic review was performed by searching PubMed, Web of Science, Scopus, and PsycINFO databases for studies published between the database's inception and November 27, 2023. Studies including individuals whose OCD was precipitated or not by SLEs (SLEs OCD and NSLEs OCD, respectively) were assessed. Effect sizes or odds ratios were then calculated to identify the strength of association between SLEs and clinical characteristics, such as gender, age of onset, family history of OCD, severity of OCD symptoms, depressive symptoms, and mood comorbidities among patients with OCD. Out of the 4083 records initially identified, 5 studies met the inclusion criteria and 3 were comparable through a meta-analysis. Notably, the analyses were limited by the small number of studies available in the literature. The meta-analysis demonstrated SLEs OCD to be associated with female gender, later OCD onset, and increased comorbidity rates with mood disorders. Despite the cross-sectional nature of the reviewed studies, women may be more vulnerable to develop a later onset of OCD following SLEs, which may also lead to mood disorders. Caution is needed to avoid prematurely classifying this presentation as a distinct subtype of OCD.

Impact of the COVID-19 pandemic on the symptomatology and routine of medicated patients with obsessive-compulsive disorder.

OBJECTIVES: To study the impact of coronavirus disease 2019 on the routine of patients with obsessive-compulsive disorder (OCD) and changes in symptoms and suicidal-related behavior, mainly in those with cleaning symptoms. METHODS: In this cross-sectional study, 58 patients completed an online self-report questionnaire that included the Obsessive-Compulsive Inventory-Revised, Coronavirus Stress and Traumatic Events Scale, Coronavirus Health Impact Survey, Beck Anxiety and Beck Depression inventories, and Suicide-Related Behaviors Questionnaire. Comparisons were made with another pre-pandemic sample (n=524) regarding the last three measures. RESULTS: During the pandemic, the patients spent more days inside their homes (χ² = 33.39, p = 0.007), changed their alcohol consumption patterns (χ² = 87.6, p < 0.001), and increased social media usage (χ² = 68.83, p < 0.001). Participants with cleaning symptoms did not significantly differ from the others in relation to stress, anxiety/depressive symptoms, or suicidal-related behaviors. Finally, our sample did not differ from an equivalent OCD sample assessed before the pandemic in terms of anxiety and depressive symptom severity or suicidal-related behaviors. CONCLUSION: Overall, patients with OCD showed no lifestyle changes associated with higher stress levels during the pandemic. Patients with and without cleaning symptoms and patients before and during the pandemic presented similar results.

Clinical characteristics of probands with obsessive-compulsive disorder from simplex and multiplex families.

Genetic and non-genetic factors contribute to obsessive-compulsive disorder (OCD), with strong evidence of familial clustering. Genomic studies in psychiatry have used the concepts of families that are "simplex" (one affected) versus "multiplex" (multiple affected). Our study compares demographic and clinical data from OCD probands in simplex and multiplex families to uncover potential differences. We analyzed 994 OCD probands (501 multiplex, 493 simplex) from the Brazilian Research Consortium on Obsessive-Compulsive Spectrum Disorders (C-TOC). Clinicians administered the Structured Clinical Interview for DSM-IV (SCID-IV) to diagnose, Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) to assess severity, and Dimensional Yale-Brown Obsessive-Compulsive Scale (DY-BOCS) to assess symptom dimensionality. Demographics, clinical history, and family data were collected. Compared to simplex probands, multiplex probands had earlier onset, higher sexual/religious and hoarding dimensions severity, increased comorbidity with other obsessive-compulsive-related disorders (OCRD), and higher family history of psychiatric disorders. These comparisons provide the first insights into demographic and clinical differences between Latin American simplex and multiplex families with OCD. Distinct clinical patterns may suggest diverse genetic and environmental influences. Further research is needed to clarify these differences, which have implications for symptom monitoring and management.

Considerations for the treatment of obsessive-compulsive disorder in patients who have comorbid major depression.

INTRODUCTION: Obsessive-compulsive disorder (OCD) is a debilitating psychiatric disorder that affects a significant number of individuals worldwide. Major depressive disorder (MDD) is among the most common comorbidities reported in people with OCD. The emergence of MDD in individuals with OCD can be attributed to the increased severity of OCD symptoms and their profound impact on daily functioning. Depressive symptoms can also modify the course of OCD. AREAS COVERED: In this review, the authors explore potential shared neurobiological mechanisms that may underlie both OCD and MDD, such as disturbed sleep patterns, immunological dysregulations, and neuroendocrine changes. Furthermore, they address the challenges clinicians face when managing comorbid OCD and MDD. The authors also discuss a range of treatment options for OCD associated with MDD, including augmentation strategies for serotonin reuptake inhibitors (e.g. aripiprazole), psychotherapy (especially CBT/EPR), transcranial magnetic stimulation (TMS), electroconvulsive therapy (ECT), and deep brain stimulation (DBS). EXPERT OPINION: Although there is no 'rule of thumb' or universally acceptable strategy in the treatment of OCD comorbid with MDD, many clinicians, including the authors, tend to adopt a unique transdiagnostic approach to the treatment of OCD and related disorders, focusing on strategies known to be effective across diagnoses. Nevertheless, the existing 'cisdiagnostic approaches' still retain importance, i.e. specific therapeutic strategies tailored for more severe forms of individual disorders.

Incidence of adverse events and comparative tolerability of selective serotonin reuptake inhibitors, and serotonin and norepinephrine reuptake inhibitors for the treatment of anxiety, obsessive-compulsive, and stress disorders: a systematic review and network meta-analysis.

Selective serotonin reuptake inhibitors (SSRIs) and serotonin and norepinephrine reuptake inhibitors (SNRIs) show similar efficacy as treatments for anxiety, obsessive-compulsive, and stress-related disorders. Hence, comparisons of adverse event rates across medications are an essential component of clinical decision-making. We aimed to compare patterns of adverse events associated with SSRIs and SNRIs in the treatment of children and adults diagnosed with these disorders through a network meta-analysis. We searched MEDLINE, PsycINFO, Embase, Cochrane, websites of regulatory agencies, and international registers from inception to 09 September 2022, for randomized controlled trials assessing the efficacy of SSRIs or SNRIs. We analyzed the proportion of participants experiencing at least one adverse event and incidence rates of 17 specific adverse events. We estimated incidence rates and odds ratios through network meta-analysis with random effects and three-level models. We analyzed 799 outcome measures from 80 studies (n = 21 338). Participants in medication groups presented higher rates of adverse events (80.22%, 95% CI 76.13-83.76) when compared to placebo groups (71.21%, 67.00-75.09). Nausea was the most common adverse event (25.71%, CI 23.96-27.54), while weight change was the least common (3.56%, 1.68-7.37). We found higher rates of adverse events of medications over placebo for most medications, except sertraline and fluoxetine. We found significant differences between medications for overall tolerability and for autonomic, gastrointestinal, and sleep-related symptoms. Adverse events are a common reason that patients discontinue SSRIs and SNRIs. Results presented here guide clinical decision-making when clinicians weigh one medication over another. This might improve treatment acceptability and compliance.

Assessing suicide risk in patients with obsessive-compulsive disorder: a dimensional approach.

OBJECTIVES: Although an association has been found recently between obsessive-compulsive disorder and an increased risk of suicide, the prevalence of both suicidal ideation and attempts vary considerably and are generally assessed categorically. Our aims were to evaluate the prevalence of suicidal ideation and behaviors using a dimensional approach. METHODS: The sample included 129 patients with obsessive-compulsive disorder. Suicidality was assessed by administering the Columbia-Suicide Severity Rating Scale. Logistic and linear regressions were used to examine predictors of suicidal ideation, severe suicidal ideation, and suicidal behavior. RESULTS: The lifetime prevalence of suicidal ideation and behaviors were 64.3% and 16.3%, respectively. Lifetime suicidal ideation was associated with the number of stressful life events, duration of illness, Hamilton Rating Scale for Depression scores, and family history of mood disorders. A family history of obsessive-compulsive disorder was associated with a lower probability of lifetime suicidal ideation. Severe suicidal ideation was related to greater severity of the most stressful life event, Hamilton Rating Scale for Depression scores, and longer duration of untreated illness. The probability of lifetime suicidal behavior was related to Hamilton Rating Scale for Anxiety scores, symmetry obsessions, and washing and checking compulsions. The probability of lifetime non-suicidal self-injurious behaviors was related to Hamilton Rating Scale for Anxiety scores. CONCLUSIONS: Recognizing predictors of suicidal ideation/behavior is crucial to identifying patients at greater risk.

Incidence and risk factors for anxiety disorders in young adults: A population-based prospective cohort study.

Anxiety disorders are among the most common psychiatric disorders in the general population. Our objective was to describe the cumulative incidence and risk factors of anxiety disorders, including obsessive-compulsive disorder (OCD) and posttraumatic stress disorder (PTSD), in a follow-up of young adults over a five-year period. This is a prospective cohort conducted in two waves. The first took place from 2007 to 2009, in which 1,560 young adults aged between 18 and 24 years were evaluated using the Mini-International Neuropsychiatric Interview (MINI). Subjects were invited to participate in the second wave, which wave took place from 2012 to 2014, where 1,244 young adults were evaluated using the MINI-Plus. Our findings showed a cumulative incidence of 10.9% for any anxiety disorder, 6.5% for generalized anxiety disorder, 6.0% for agoraphobia, 2.0% for OCD, 1.6% for panic disorder, 1.1% for social anxiety and 0.7% for PTSD. Being female and having had a depressive episode were risk factors to develop any anxiety disorder. We observed a high cumulative incidence of anxiety disorders in a population-based sample of young adults. Our data highlights the importance of the early identification of these disorders as this could lead to early illness detection, early illness management and a reduced burden of disease.

Predictors of suicide attempt in patients with obsessive-compulsive disorder: an exploratory study with machine learning analysis.

BACKGROUND: Patients with obsessive-compulsive disorder (OCD) are at increased risk for suicide attempt (SA) compared to the general population. However, the significant risk factors for SA in this population remains unclear - whether these factors are associated with the disorder itself or related to extrinsic factors, such as comorbidities and sociodemographic variables. This study aimed to identify predictors of SA in OCD patients using a machine learning algorithm. METHODS: A total of 959 outpatients with OCD were included. An elastic net model was performed to recognize the predictors of SA among OCD patients, using clinical and sociodemographic variables. RESULTS: The prevalence of SA in our sample was 10.8%. Relevant predictors of SA founded by the elastic net algorithm were the following: previous suicide planning, previous suicide thoughts, lifetime depressive episode, and intermittent explosive disorder. Our elastic net model had a good performance and found an area under the curve of 0.95. CONCLUSIONS: This is the first study to evaluate risk factors for SA among OCD patients using machine learning algorithms. Our results demonstrate an accurate risk algorithm can be created using clinical and sociodemographic variables. All aspects of suicidal phenomena need to be carefully investigated by clinicians in every evaluation of OCD patients. Particular attention should be given to comorbidity with depressive symptoms.

[A pediatric cohort with Gilles de la Tourette syndrome]. / Descripción de una cohorte pediátrica con síndrome de Gilles de la Tourette.

INTRODUCTION: Tourette Syndrome (TS) is a common disorder with chronic motor and phonic tics, associated with neuropsychiatric comorbidities. OBJECTIVE: To characterize clinical-demographic variables, comor bidities, and management in a pediatric cohort with TS and compare them according to sex. PATIENTS AND METHOD: A retrospective cohort of patients < 18 years old with TS followed up between 2000 and 2018 was evaluated. Clinical records were reviewed obtaining variables of age, sex, reason for consul tation, age of onset, type and complexity of tics, follow-up time, family history, obsessive behaviors, neuropsychiatric and psychopathological comorbidity, neurological disorders, and pediatric mor bidity. Studies and treatments performed, and management used were also recorded. RESULTS: 126 patients were included, aged between 4-18 years, 103 males (sex F:M ratio = 4.5:1), with a follow-up of 4.8 ± 1.9 years. The mean age of tic onset and TS diagnosis was 6.5 ± 2.2 and 9.4 ± 2.7 years, res pectively, and a diagnostic latency of 2.8 ± 2.2 years. The first consultation in the total of girls was due to tics, in contrast to the boys of whom 14.6% (n = 15) consulted due to comorbidities. There was 38.9% of tics and 8,7% of TS. Neuropsychiatric comorbidities were frequent, recorded in 69.8%, with Attention Deficit Disorder (43.6%) and Obsessive-Compulsive Disorder (20.6%) standing out.110 cases (87.3%), received pharmacological therapy and 54.4% required three or more drugs at some point in their evolution. Only in 16 cases (12.7%), no pharmacological therapy was required, only psychoeducation in 7 (5.6%) cases, and behavioral therapy in 9 cases (7.1%). CONCLUSIONS: The cli nical characteristics of our children with TS are similar to international descriptions, highlighting that in the group of boys, the first consultation could be due to comorbidity, recognizing later the presence of tics. Although psychoeducation and behavioral therapies are recommended as first-line management, most of the patients in this group required pharmacological therapy.

Predicting marriage and divorce in obsessive-compulsive disorder.

Single (N = 472, 51.7%), married or living in stable cohabitation (N = 375, 41.1%) and divorced or separated (N = 66, 7.2%) patients with obsessive-compulsive disorder (OCD) were compared in terms of their sociodemographic features, OCD phenotypes, and comorbidity profile. Using single status as a reference group, a multinominal regression analysis found increased age, lower severity of hoarding, increased rates of panic disorder without agoraphobia, and lower rates of dysthymic disorder to be associated with married or stable cohabitation status. Concomitantly, increased age, higher severity of symmetry symptoms, and increased rates of skin picking disorder were found to be associated with divorced status. These findings suggest that there is a relationship between marital status and different OCD phenotypes.

Social losses predict a faster onset and greater severity of obsessive-compulsive disorder.

BACKGROUND: While stressful life events increase the risk of developing a range of psychiatric disorders, including obsessive-compulsive disorder (OCD), their ability to precipitate specific obsessive-compulsive symptoms' dimensions is unknown. Here we aimed to evaluate the potential role of three different types of stressful life events, herein termed losses (death of a loved one, termination of a romantic relationship and severe illness) in predicting the speed of progression from subclinical to clinical OCD and the severity of specific OCD dimensions in a large multicentre OCD sample. METHODS: Nine hundred and fifty-four OCD outpatients from the Brazilian OCD Research Consortium were included in this study. Several semi-structured and structured instruments were used, including the Structured Clinical Interview for DSM-IV Axis I Disorders, the Yale-Brown Obsessive-Compulsive Scale, the Dimensional Yale-Brown Obsessive-Compulsive Scale, the Brown Assessment of Beliefs Scale, the Beck Depression Inventory, the Beck Anxiety Inventory and the Yale OCD Natural History Questionnaire. Regression models investigated the interaction between types of loss and gender to predict speed of progression from subclinical obsessive-compulsive symptoms to OCD, and the severity of five symptom dimensions. RESULTS: While termination of a relationship was associated with a faster speed of progression from subthreshold to clinical OCD, the death of a loved one was associated with increased severity of hoarding symptoms. There was also an interaction between gender and experiences of death, which predicted a faster speed of progression to OCD in males. CONCLUSIONS: Stressful life events have the ability to accelerate the progression from subclinical to clinical OCD, as well as impact the severity of specific OCD dimensions. Gender also plays a role in both the progression and severity of symptoms. These findings suggest that stressful life events may represent a marker to identify individuals at risk of progressing to clinical OCD.

Obsessive-compulsive symptoms and their links to depression and anxiety in clinic- and community-based pediatric samples: A network analysis.

BACKGROUND: Symptoms of depression and anxiety are common in children with obsessive-compulsive disorder (OCD) and associated with more severe OCD, greater impairment, and worse treatment outcome. Beyond twin studies showing that genetic factors contribute to the high co-occurrence, few studies have examined how OCD, depression, and anxiety are linked in youth, and current studies often fail to account for OCD and anxiety heterogeneity. METHODS: Network analysis was used to investigate how OCD were linked to depression and anxiety in multinational youth diagnosed with OCD (total n = 419) and in school-recruited, community-based samples of youth (total n = 2 991). RESULTS: Initial results aligned with earlier work showing that severity of obsession-related symptoms are important in linking OCD to depression in youth with OCD. However, when symptom content of OCD (e.g., washing, ordering) was fully taken into account and when measures of anxiety were included, specific OCD symptom dimensions (primarily obsessing and doubting/checking) were linked to specific anxiety dimensions (primarily panic and generalized anxiety) which in turn were linked to depression. These results were replicated in three separate community-based samples from Chile, Italy, and Spain using different measures of anxiety and depression. LIMITATIONS: Cross-sectional data were analyzed which precludes causal inference. Self-report measures were used. CONCLUSIONS: Youth with OCD with symptoms related to doubting/checking and obsessing should be carefully assessed for symptoms of panic and generalized anxiety. Non-responders to standard OCD treatment may benefit from interventions targeting panic and generalized anxiety, but more research is needed to test this hypothesis.

The speed of progression towards obsessive-compulsive disorder.

BACKGROUND: There is current interest in the elaboration of early intervention programs for obsessive-compulsive disorder (OCD). To this end, it is important to investigate the speed of progression from subthreshold symptoms to diagnosable OCD. In this study, we have retrospectively investigated the speed of progression towards full-blown OCD and sociodemographic and clinical factors associated with a faster transition. METHODS: Patients enrolled in the Brazilian Research Consortium on Obsessive-Compulsive Spectrum Disorders (N = 954) were interviewed with a comprehensive assessment battery that included the interval (in years) between the onset of subthreshold OCD symptoms and the onset of full-blown OCD. RESULTS: It took a median of 7 years (interquartile range: 2-13 years) for subthreshold symptoms to convert to diagnosable OCD. Faster OCD onset was associated with lower age at the time of assessment, male gender, being in new romantic states as precipitants for compulsions, greater severity of sexual/religious symptoms and lower severity of hoarding and YBOCS compulsions severity scores, greater rates of generalized anxiety disorder and agoraphobia without panic disorder, and negative family history for OCD. LIMITATIONS: The retrospective design of this study allowed for susceptibility to memory bias about age at onset of OCD symptoms. We were unable to capture progressions taking less than 12 months. CONCLUSIONS: We could identify a specific phenotype that was more likely to escalate rapidly to clinical levels within this large clinical sample. This phenomenon may be particularly relevant in the context of selecting individuals for early intervention initiatives in situations when resources are scarce.

Bipolar disorder comorbidity in patients with obsessive-compulsive disorder: Prevalence and predictors.

BACKGROUND: Patients with obsessive-compulsive disorder (OCD) often present with comorbidities, mainly anxiety and affective disorders, which may influence OCD course, help-seeking and treatment response. Some authors have studied bipolar disorder (BD) comorbidity in patients with OCD, but usually in small samples. The objective was to estimate the lifetime prevalence of BD in a large clinical sample of OCD patients, and to compare demographic and clinical features of patients with and without BD comorbidity. METHOD: This cross-sectional study with 955 adult OCD patients from the Brazilian Research Consortium on Obsessive-Compulsive Spectrum Disorders (C-TOC) used several assessment instruments, including the Yale-Brown Obsessive-Compulsive Scale, the Dimensional Yale-Brown Obsessive-Compulsive Scale, the Beck Depression and Anxiety Inventories, and the Structured Clinical Interview for DSM-IV Axis I Disorders. Descriptive and bivariate analyses were followed by logistic regression. RESULTS: The lifetime prevalence of BD was 7.75% (N = 74). The variables that were independently associated with BD comorbidity were: panic disorder with agoraphobia, impulse control disorders, and suicide attempts. LIMITATIONS: The cross-sectional design does not permit causal inferences; the external validity may be limited, as the participants were from tertiary services. Despite the large sample size, some analyses may have been underpowered due to the relatively low prevalence of the outcome and of some explanatory variables. CONCLUSIONS: Patients with OCD comorbid with BD have some clinical features indicative of greater severity, including higher suicide risk, and require a careful therapeutic approach for the appropriate treatment of both disorders.

The impact of attention deficit hyperactivity disorder in obsessive-compulsive disorder subjects.

BACKGROUND: Recent findings suggest an association between attention deficit hyperactivity disorder (ADHD) and obsessive-compulsive disorder (OCD). Thus, we evaluated the clinical associated features of ADHD in a large sample of adult OCD patients. METHODS: A cross-sectional study including 955 adult patients with OCD from the Brazilian Research Consortium of Obsessive-Compulsive Spectrum Disorders (C-TOC). Clinical characteristics in adult OCD patients with and without comorbid ADHD were compared using Fisher's exact test, t-tests or Mann-Whitney tests. Bivariate analyses were followed by logistic regression analysis to identify clinical characteristics independently associated with ADHD comorbidity. RESULTS: The lifetime prevalence of ADHD in adult OCD patients was 13.7%. The current results indicate that OCD + ADHD patients were more severe, had an earlier onset of the obsessive-compulsive symptoms, a higher history of rheumatic fever, with higher frequencies of sensory phenomena and comorbidity with Tourette syndrome. They also had an increased risk for academic impairment and suicide attempts. CONCLUSION: Adult OCD patients with ADHD present some specific clinical features and may represent a special subgroup of adult OCD. Future studies should focus on the development of interventions more tailored to the phenotype of this subgroup of patients.

High Prevalence of Body Dysmorphic Disorder and Moderate to Severe Appearance-Related Obsessive-Compulsive Symptoms Among Rhinoplasty Candidates.

BACKGROUND: Rhinoplasty is one of the most sought-after procedures in plastic surgery by individuals with body dysmorphic disorder (BDD). The identification of BDD symptoms is a challenge for plastic surgeons. The purpose of this study was to use a specific instrument for detection of BDD symptoms as a screening tool in rhinoplasty candidates and estimate the prevalence and severity of BDD symptoms in this population. METHODS: Eighty patients of both sexes seeking rhinoplasty were consecutively recruited at a plastic surgery outpatient clinic of a university hospital from February 2014 to March 2015. In a clinical interview, 50 of them showed an excessive preoccupation with physical appearance associated with clinically significant subjective distress and were, therefore, selected to participate in the study. All participants were assessed using the Brazilian-Portuguese versions of the Yale-Brown Obsessive Compulsive Scale modified for BDD (BDD-YBOCS) and the Body Dysmorphic Symptoms Scale (BDSS), which can be applied by plastic surgeons, who are laypersons in psychology/psychiatry. RESULTS: Twenty-four (48%, 24/50) candidates had BDD symptoms, and 27 (54%, 27/50) showed moderate to severe appearance-related obsessive-compulsive symptoms. A strong correlation was found between the BDSS and BDD-YBOCS scores (r = 0.841, P < 0.001), and a strong agreement was observed between the BDSS cutoff point and body dysmorphic disorder symptom status (kappa = 0.822). CONCLUSIONS: A high prevalence of BDD and moderate to severe appearance-related obsessive-compulsive symptoms was found among aesthetic rhinoplasty candidates. The BDSS may be used as a screening tool for BDD symptoms in plastic surgery patients. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .