{"title":"Mortality Rates According to the Time of Onset of Mental Disorders Among Patients With Coronavirus Disease 2019 in South Korea: A Nationwide Retrospective Study.","authors":"Jungeun Kim, Subin Park","doi":"10.30773/pi.2026.0054","DOIUrl":"10.30773/pi.2026.0054","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to investigate the association between the timing of mental disorder diagnosis and all-cause mortality among patients with coronavirus disease 2019 (COVID-19) during the initial period of the pandemic.</p><p><strong>Methods: </strong>This retrospective study used the K-COV-N cohort (Korea Disease Control and Prevention Agency-COVID-19-National Health Insurance Service cohort). Patients with confirmed COVID-19 between October 2020 and December 2021 were classified into three groups: those without mental disorders, those with pre-existing mental disorders, and those with newly diagnosed mental disorders during the COVID-19 pandemic. Logistic regression analysis was performed to estimate the association between mental disorder group and all-cause mortality.</p><p><strong>Results: </strong>A total of 432,852 patients with COVID-19 were included in the analysis. Of these, 351,519 (81.21%) had no mental disorders, 54,846 (12.67%) had pre-existing mental disorders, and 26,487 (6.12%) had newly diagnosed mental disorders during the pandemic. The overall all-cause mortality rate was 0.72% (n=3,099). Compared with patients without mental disorders, those with pre-existing mental disorders (adjusted odds ratio [aOR], 1.33; 95% confidence interval [CI], 1.21-1.47) and those with newly diagnosed mental disorders (aOR, 1.63; 95% CI, 1.44-1.84) had higher odds of all-cause mortality.</p><p><strong>Conclusion: </strong>Among patients with COVID-19, both pre-existing and newly diagnosed mental disorders were associated with increased all-cause mortality, with a stronger association observed for newly diagnosed mental disorders.</p>","PeriodicalId":21164,"journal":{"name":"Psychiatry Investigation","volume":"23 7","pages":"937-944"},"PeriodicalIF":2.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13396282/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148579956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hey-Ran Choi, Hye Yoon Park, In-Ae Song, Tak Kyu Oh
{"title":"Peripartum Magnesium Sulfate and Post-Delivery Depression: A Nationwide Cohort Study With 13-Year Follow-Up.","authors":"Hey-Ran Choi, Hye Yoon Park, In-Ae Song, Tak Kyu Oh","doi":"10.30773/pi.2025.0427","DOIUrl":"10.30773/pi.2025.0427","url":null,"abstract":"<p><strong>Objective: </strong>Although its potential antidepressant effects have been suggested, evidence on long-term outcomes for post-delivery depression remains limited. We evaluated whether peripartum intravenous magnesium sulfate (MgSO₄) is associated with a reduced risk of postpartum depression (PPD) within 12 months and its long-term trajectory over 13 years.</p><p><strong>Methods: </strong>This nationwide retrospective cohort study included all women in South Korea who delivered between 2010 and 2014, excluding those with prior depression. Exposure was defined as intravenous MgSO₄ administration during delivery hospitalization. Propensity score (PS) matching (1:5) was used to balance baseline characteristics. We employed Cox proportional hazards models to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for both 12-month PPD and long-term depression (up to 13 years).</p><p><strong>Results: </strong>Among 1,583,253 eligible mothers, 9,756 (0.6%) received MgSO₄. In the PS-matched cohort (9,682 exposed; 35,140 unexposed), there was no significant association between MgSO₄ and the primary outcome of 12-month PPD (HR, 1.11; 95% CI, 0.97-1.26; p=0.114). Similarly, the risk of long-term post-delivery depression showed no significant difference (HR, 1.02; 95% CI, 0.97-1.07; p=0.388). These findings were consistent in the dose-response analysis for 12-month PPD (HR, 1.10 per 10 g increase; 95% CI, 0.96- 1.24; p=0.144) and in subgroup analyses stratified by preeclampsia status.</p><p><strong>Conclusion: </strong>Peripartum MgSO₄ exposure was not associated with a reduced risk of either 12-month PPD or long-term post-delivery depression. Despite its biological plausibility, routine obstetric use of MgSO₄ does not appear to confer preventive mental health benefits for mothers in the general obstetric population.</p>","PeriodicalId":21164,"journal":{"name":"Psychiatry Investigation","volume":" ","pages":"883-891"},"PeriodicalIF":2.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13396268/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148272780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Autism Spectrum Disorder and Cardiovascular Risk: The Role of Frontal QRS-T Angle and Systemic Immune-Inflammation Index.","authors":"Umut Balatacı, Bari Ay","doi":"10.30773/pi.2026.0046","DOIUrl":"10.30773/pi.2026.0046","url":null,"abstract":"<p><strong>Objective: </strong>Autism spectrum disorder (ASD) has been linked to autonomic dysregulation and low-grade systemic inflammation, but their expression on routine electrocardiography (ECG) in pediatric samples remains unclear. We examined whether inflammatory indices relate to ECG markers, particularly the frontal QRS-T angle (fQRS-T), in youths with ASD.</p><p><strong>Methods: </strong>In this case-control study, children and adolescents with Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition- confirmed ASD and age- and sex-matched healthy controls (HC) were enrolled. Sociodemographic data, complete blood counts, biochemistry/hormones, and standard 12-lead ECGs were obtained. Inflammatory composites included the systemic immune-inflammation index (SII), systemic inflammatory response index, and pan-immune-inflammation value. fQRS-T was derived from the automated ECG report as the absolute difference between frontal QRS and T axes (0°-180°) and verified by clinician review.</p><p><strong>Results: </strong>Eighty-four ASD participants and 82 HC were analyzed, with no age or sex differences. Compared with HC, ASD showed higher heart rate (97.56±21.20 bpm vs. 84.63±17.02 bpm; p=0.004) and a wider fQRS-T (median 23.5° [IQR 5.75-43.25] vs. 18° [IQR 3.5-31.5]; p=0.005). SII was modestly higher in ASD (539.66 vs. 453.14; p=0.030). Autism Behavior Checklist scores correlated with SII (r=0.387; p=0.041) and fQRS-T (r=0.566; p=0.002), but not with heart rate (r=0.117; p=0.546). SII also correlated with fQRS-T (r=0.424; p=0.010).</p><p><strong>Conclusion: </strong>ASD was associated with increased fQRS-T and SII despite largely normal conventional ECG intervals, and behavioral severity tracked with both inflammatory tone and repolarization heterogeneity, suggesting a possible association between inflammatory, autonomic, and electrophysiological processes.</p>","PeriodicalId":21164,"journal":{"name":"Psychiatry Investigation","volume":"23 6","pages":"766-772"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13284554/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148278606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"How Is the Loneliness Affected by Family and Friend Support in Adolescents With Depressive Disorder: The Mediating Role of Coping Strategies.","authors":"Xiaoli Huan, Xuejun Li, Yuehua Cao, Xuan Lei, Wenzhao Chen, Yanni Wang, Yongjie Zhou","doi":"10.30773/pi.2025.0455","DOIUrl":"10.30773/pi.2025.0455","url":null,"abstract":"<p><strong>Objective: </strong>Perceived social support (PSS) buffers against loneliness, but family and friend support may differ in effects. This study constructed a mechanism model mediated by coping strategies to examine the pathways through which PSS, family and friend support influence loneliness.</p><p><strong>Methods: </strong>Adolescents aged 12-18 with depressive disorder were recruited from 14 psychiatric hospitals across 9 Chinese provinces. They completed the Coping Strategies Scale for Middle School Students, the Multidimensional Scale of Perceived Social Support, and the UCLA Loneliness Scale. Path analysis explored relationships among PSS, family and friend support, loneliness, as well as the indirect effects mediated by coping strategies.</p><p><strong>Results: </strong>A total of 2,343 adolescents participated. PSS negatively predicted loneliness (β=-0.46, p<0.001). Problem-focused coping mediated the relationship between PSS and loneliness (β=0.48, p<0.001), while emotion-focused coping did not (β=-0.04, p>0.05). Both family and friend support directly predicted loneliness with coefficients of -0.13 and -0.39, respectively. Problem-focused coping mediated the associations of both family support (β=0.32, p<0.001) and friend support (β=0.28, p<0.001) with loneliness. Emotion-focused coping weakly mediated the effect of family support (β=-0.09, p<0.001), but not friend support (β=0.04, p>0.05).</p><p><strong>Conclusion: </strong>Both family and friend support reduce loneliness by promoting problem-focused coping, with friend support showing a stronger effect. Family support also alleviates loneliness by reducing emotion-focused coping. Enhancing PSS and adaptive coping strategies may alleviate loneliness.</p>","PeriodicalId":21164,"journal":{"name":"Psychiatry Investigation","volume":"23 6","pages":"797-808"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13284562/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148278595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Risks and Familial Coaggregation of Autism Spectrum Disorder Among First-Degree Relatives of Individuals With Colorectal Cancer.","authors":"Dian-Jeng Li, Shih-Jen Tsai, Chih-Ming Cheng, Wen-Han Chang, Ya-Mei Bai, Tung-Ping Su, Tzeng-Ji Chen, Mu-Hong Chen, Chih-Sung Liang","doi":"10.30773/pi.2025.0460","DOIUrl":"10.30773/pi.2025.0460","url":null,"abstract":"<p><strong>Objective: </strong>Associations between major mental disorders (MMDs) and colorectal cancer (CRC) have been reported; however, it remains unknown whether this association extends to an individual's kinship. The aim of this study was to explore the risks of MMDs in first-degree relatives (FDRs) of individuals with CRC.</p><p><strong>Methods: </strong>We used data from the Taiwan National Health Insurance Research Database. FDRs of individuals with CRC were identified as the index group, and a demographic-matched group was also included as the controls. The primary outcome was the risk of an MMD. A Poisson regression model with robust error variance was used to estimate the relative risks and 95% confidence intervals.</p><p><strong>Results: </strong>A total of 68,965 FDRs of individuals with CRC (38,024 males and 30,941 females) and 275,860 matched controls were included. After adjustments for potential confounders, the FDR-CRC group had a higher risk of autism spectrum disorder than the controls, especially in the males of fathers with CRC. In addition, individuals who had a son with CRC had a higher risk of bipolar disorder than the controls, especially females. Males whose mother had CRC had higher risks of attention deficit hyperactivity disorder and general anxiety disorder than the controls.</p><p><strong>Conclusion: </strong>With the unique association identified in this study between FDRs of individuals with CRC and the risk of MMDs, genetic studies are encouraged to explore the complicated etiologies behind this association.</p>","PeriodicalId":21164,"journal":{"name":"Psychiatry Investigation","volume":"23 6","pages":"738-745"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13284559/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148278598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Paraben and Phthalate Exposure in Adolescents With Attention-Deficit/Hyperactivity Disorder: A Case-Control Study.","authors":"Merve Aktaş Terzioğlu, Seyfiye Patlar, Canan Onac, Ayşegül Cort, Melek Tunç Ata","doi":"10.30773/pi.2025.0444","DOIUrl":"10.30773/pi.2025.0444","url":null,"abstract":"<p><strong>Objective: </strong>This case-control study compared urinary concentrations of parabens and phthalate metabolites between adolescents with attention-deficit/hyperactivity disorder (ADHD) and healthy peers and examined whether product-use behaviors accounted for observed exposure differences.</p><p><strong>Methods: </strong>Adolescents aged 12-17 years with clinically diagnosed ADHD (n=39) and age- and sex-matched healthy controls (n=41) were recruited. Urinary concentrations of seven parabens and ten phthalate metabolites were quantified using validated high-performance liquid chromatography and gas chromatography-mass spectrometry protocols. ADHD symptoms were assessed using Conners Parent and Adolescent Rating Scales. Group comparisons were conducted using t-tests with effect sizes (Cohen's d). Multivariable logistic regression, factorial analysis of covariance (ANCOVA) models (reporting partial η²), and multiple mediation analyses were performed, adjusting for household income, parental education, and body mass index.</p><p><strong>Results: </strong>Differences in the urinary concentrations of several parabens and phthalate metabolites were observed between adolescents with ADHD and controls. However, detection frequencies varied across analytes, and findings for compounds with low detection frequency should be interpreted with caution. In multivariable logistic regression, an association between dimethyl phthalate and ADHD status was observed (odds ratio=6.13; 95% confidence interval, 1.10-34.34), with improved model discrimination (Δχ²=17.2, p=0.002; area under the receiver operating characteristic curve, 0.856→0.921); however, this finding should be interpreted with caution given its low detection frequency. In ANCOVA models adjusting for product-use behaviors, group differences remained significant only for dimethyl phthalate (F(1, 71)=7.97, p=0.006, η²=0.099); however, this finding should likewise be interpreted with caution due to its low detection frequency. Mediation analyses indicated that recent personal care product use did not substantially mediate the association between ADHD status and chemical exposure levels.</p><p><strong>Conclusion: </strong>Adolescents with ADHD showed differences in internal exposure to selected parabens and phthalate metabolites. These findings should be interpreted with caution, particularly for analytes with low detection frequency. Overall, these findings suggest that exposure differences may reflect behavior-linked vulnerability patterns during adolescence rather than short-term cosmetic use alone. Longitudinal studies are needed to clarify temporal and causal pathways.</p>","PeriodicalId":21164,"journal":{"name":"Psychiatry Investigation","volume":"23 6","pages":"773-789"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13284555/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148278569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Psychological Factors Applicable to App Development for Overcoming Problematic Smartphone Use: A Structural Equation Modeling Approach.","authors":"Jihwan Park, Mi Jung Rho","doi":"10.30773/pi.2024.0317","DOIUrl":"10.30773/pi.2024.0317","url":null,"abstract":"<p><strong>Objective: </strong>As the importance of smartphones grows, so too do the negative side effects, such as mental health issues caused by problematic smartphone use. Therefore, to lay the foundation for developing apps that can address problematic smartphone use, we must clearly identify the psychological factors that influence it. To this end, we attempted to identify the psychological factors that influence problematic smartphone use using structural equation modeling.</p><p><strong>Methods: </strong>We used data from 691 smartphone users (aged 20s to 50s) collected via an online survey from December 8, 2019, through January 17, 2020. We developed two research models based on anxiety symptoms, depression symptoms, self-control, and attention-deficit/hyperactivity disorder (ADHD). We conducted structural equation modeling using R to identify psychological factors that influence problematic smartphone use.</p><p><strong>Results: </strong>Although anxiety and depressive symptoms showed a strong correlation, anxiety symptoms did not directly influence problematic smartphone use, but rather indirectly (mediated effect) through depressive symptoms. Additionally, the lower an individual's self-control, the more likely he or she is to be smartphone dependent. The higher the ADHD, the more problematic the smartphone use. In addition, we used single indicators of scales such as Generalized Anxiety Disorder-7 and Patient Health Questionnaire-9 in structural equation model and confirmed good model fit.</p><p><strong>Conclusion: </strong>We presented major psychological factors to be considered in developing health applications to manage and control problematic smartphone use: anxiety symptoms, depression symptoms, self-control, ADHD.</p>","PeriodicalId":21164,"journal":{"name":"Psychiatry Investigation","volume":"23 6","pages":"809-817"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13284557/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148278603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hee-Ju Kang, Ju-Wan Kim, Sung-Wan Kim, Joon-Tae Kim, Man-Seok Park, Min-Chul Kim, Youngkeun Ahn, Myung Ho Jeong, Jae-Min Kim
{"title":"Educational Disparities in the Impact of Suicidal Ideation on Long-Term Cardio-Cerebrovascular Outcomes: A Prospective Cohort Study.","authors":"Hee-Ju Kang, Ju-Wan Kim, Sung-Wan Kim, Joon-Tae Kim, Man-Seok Park, Min-Chul Kim, Youngkeun Ahn, Myung Ho Jeong, Jae-Min Kim","doi":"10.30773/pi.2025.0434","DOIUrl":"10.30773/pi.2025.0434","url":null,"abstract":"<p><strong>Objective: </strong>This study investigated whether educational attainment independently predicts long-term prognosis following acute coronary syndrome (ACS) and stroke, and whether this association is modified by acute-phase suicidal ideation (SI).</p><p><strong>Methods: </strong>Data from two prospective cohorts (1,152 ACS; 396 stroke) were analyzed. Educational attainment (low ≤10 high vs. high >10 years) and SI were assessed approximately 2 weeks post-event. Primary endpoints-major adverse cardiac events (MACE) for ACS and cerebro-cardiovascular events (CCVE) for stroke-were ascertained over a 5-14 year follow-up. Hierarchical Cox models sequentially adjusted for vascular factors (Model 1), psychosocial/disease severity (Model 2), and combined covariates (Model 3). Sensitivity analyses used a ≥12-year education cutoff.</p><p><strong>Results: </strong>Educational attainment was not an independent predictor of outcomes in either cohort across all models. However, a significant education×SI interaction emerged for MACE in the ACS cohort across all models (p=0.031-0.046). Among ACS patients with SI, higher education was associated with significantly reduced MACE risk (hazard ratio [HR]=0.54, 95% confidence interval 0.34-0.86, p=0.009), while no association existed without SI (HR=1.05, p=0.690). Similar interaction patterns in the stroke cohort achieved significance in Models 1 and 3, though stratified effects were attenuated, likely reflecting limited statistical power. Sensitivity analyses demonstrated directional consistency in both cohorts with some attenuation in fully adjusted models.</p><p><strong>Conclusion: </strong>Educational background modifies the prognostic impact of psychological distress in post-ACS patients. Lower-educated patients experiencing SI represent a high-risk subgroup requiring targeted psychosocial intervention. These findings support integrating educational status into psychosocial risk stratification protocols for acute cardiovascular care.</p>","PeriodicalId":21164,"journal":{"name":"Psychiatry Investigation","volume":"23 6","pages":"746-753"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13284550/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148278530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Han-Sung Lee, Mohd Ashik Shahrier, Soyoung Yoo, Seockhoon Chung
{"title":"Validation of the Korean Version of the Meta-Worry Questionnaire Among the General Population.","authors":"Han-Sung Lee, Mohd Ashik Shahrier, Soyoung Yoo, Seockhoon Chung","doi":"10.30773/pi.2025.0387","DOIUrl":"10.30773/pi.2025.0387","url":null,"abstract":"<p><strong>Objective: </strong>Meta-worry, defined as worry about worrying, plays a central role in the onset and maintenance of generalized anxiety disorder (GAD) within the metacognitive model of anxiety. The Meta-Worry Questionnaire (MWQ) is a self-report scale developed to assess negative metacognitive beliefs about worry. This study aimed to examine the reliability and validity of the Korean version of the MWQ in a general adult population.</p><p><strong>Methods: </strong>An online survey was conducted with 600 participants, stratified by sex and age. The MWQ was translated using forward and back-translation. The first 300 responses (Group I) were used for exploratory factor analysis (EFA), and the remaining 300 (Group II) were used for confirmatory factor analysis (CFA), item response theory (IRT), and convergent validity. Other measures included the Generalized Anxiety Disorder-7, Metacognition Questionnaire for Insomnia-14, Insomnia Severity Index, and the discrepancy between desired time in bed and desired total sleep time index.</p><p><strong>Results: </strong>EFA showed a one-factor structure explaining 71.5% of the variance. CFA confirmed good model fit, and measurement invariance was observed across the sexes. The internal consistency was high (α=0.946, ω=0.946), and IRT results indicated strong item discrimination. The MWQ scores were strongly related to anxiety, metacognitive beliefs about insomnia, and insomnia severity.</p><p><strong>Conclusion: </strong>The Korean version of the MWQ is reliable and valid for assessing meta-worry. These findings support its applicability in evaluating metacognitive aspects of anxiety symptoms in Korean populations.</p>","PeriodicalId":21164,"journal":{"name":"Psychiatry Investigation","volume":"23 6","pages":"719-728"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13284553/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148278582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jaeyong Jang, Hojun Lim, Min-Hyeon Park, Kiho Sung, Yoosik Youm, Sung-Ha Lee, Eunjoo Kim
{"title":"Relationships Between Eating Behaviors and Psychological Distress Among Female High School Students: A Social Network Analysis Perspective.","authors":"Jaeyong Jang, Hojun Lim, Min-Hyeon Park, Kiho Sung, Yoosik Youm, Sung-Ha Lee, Eunjoo Kim","doi":"10.30773/pi.2025.0447","DOIUrl":"10.30773/pi.2025.0447","url":null,"abstract":"<p><strong>Objective: </strong>The purpose of this study is to examine the relationship between body image distress and disordered eating behaviors (DEBs) using peer-based social network characteristics during adolescence.</p><p><strong>Methods: </strong>Data were drawn from the Korean Study of Adolescent Health, a longitudinal cohort investigating mental and behavioral health in Korean youth. The analytic sample comprised 315 female high school students from two cohorts. Eating behaviors, body image distress, depressive and anxiety symptoms, perceived stress, personality traits, and social network centrality were assessed using selfreport questionnaires. Ordinal and binary logistic regression analyses were conducted.</p><p><strong>Results: </strong>Students in Cohort 23 reported lower body image distress and binge eating compared with those in Cohort 22 (p<0.05). Underweight status (body mass index [BMI] <18.5) was associated with lower body image distress and reduced binge eating, whereas obesity was linked to body image distress but not dieting behaviors. Depressive symptoms predicted both binge eating and dieting (p<0.01). Social network indices indicated that higher in-degree centrality was protective against body image distress, while higher out-degree centrality was associated with body image distress but reduced dieting behaviors.</p><p><strong>Conclusion: </strong>In addition to BMI and depressive symptoms, social network centrality emerged as a correlate of DEBs among adolescent girls. These findings highlight the importance of integrating emotional regulation and supportive peer network structures into interventions aimed at promoting healthy body image and eating behaviors.</p>","PeriodicalId":21164,"journal":{"name":"Psychiatry Investigation","volume":"23 6","pages":"818-828"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13284560/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148278572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}