Prevalence and associated factors of developmental coordination disorder in primary school children.

Developmental coordination disorder (DCD) is one of the most frequently observed movement disorders in childhood, yet data on its prevalence are still unclear. This two-stage epidemiological study aims to determine the prevalence of DCD in children between 6 and 10 years of age according to the diagnostic criteria of the Diagnostic and Statistical Manual of Mental Disorders-5 (DSM-5). In the first stage, the Developmental Coordination Disorder Questionnaire (DCDQ'07) were given to primary school students. In the second stage, clinicians conducted psychiatric interviews with children who had an indication of DCD or were suspected of having DCD according to the DCDQ'07 and their parents. The interviews utilized the DSM-5 diagnostic criteria for DCD and applied the Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime Version-Turkish Adaptation (K-SADS-PL) and Wechsler Intelligence Scale for Children (WISC-R) to identify co-occurring disorders. In the first stage, 2,306 children were evaluated, and 205 were invited for a clinical interview. Of the 198 children interviewed, 49 met the diagnostic criteria for DCD. The prevalence of DCD in Türkiye was found to be 2.1%. High parental education level, a previous psychiatric admission of the child, mother's postpartum depressive symptoms, co-occurring disorders, and co-occurring attention deficit hyperactivity disorder (ADHD) were significantly more common among children with DCD. Potentially associated factors were evaluated by logistic regression analysis. The mother's education level, the presence of postpartum depressive symptoms, and co-occurring disorders in the child were found to be associated factors.

Evaluation of subclinical cardiovascular risk in drug-naive pediatric patients with anxiety disorders.

OBJECTIVE: This study examined subclinical atherosclerosis in drug-naïve children with anxiety disorders using non-invasive measures to investigate the clinical features associated with subclinical atherosclerosis. METHOD: A total of 37 drug-naive children and adolescents with anxiety disorders and 37 healthy controls were included in the study. The Children's Depression Inventory (CDI) and the State-Trait Anxiety Inventory (STAI-T and STAI-S) were used to assess children's depression and anxiety levels. Carotid artery intima-media (cIMT), epicardial adipose tissue (EAT), and periaortic adipose tissue (PAT) thicknesses, which are indicators of subclinical atherosclerosis, were obtained by echocardiographic measurements. RESULTS: Multivariate analysis of covariance (MANCOVA) revealed a significant main effect on cIMT, EAT thickness, and PAT thickness, independent of confounding factors such as age, sex, body mass index, mean blood pressure, and family income (Pillai's Trace V = .76, F (1, 72) = 35.60, P < .001, ηp2 = .76). Analysis of covariance (ANCOVA) showed that cIMT, EAT thickness, and PAT thickness values were significantly higher in the anxiety disorder group compared to the the control group (P < .001). In partial correlation analysis, a positive correlation was observed between STAI-T and cIMT and EAT thickness. In linear regression analyses, age and STAI-T were significantly correlated with cIMT and EAT thickness levels. CONCLUSIONS: These results suggest that subclinical cardiovascular risk is significantly increased in children and adolescents with anxiety disorders.

Psychometric properties of Turkish Orthorexia Nervosa Inventory in a clinical adolescent sample.

PURPOSE: Orthorexic tendencies are increasingly prevalent among children and adolescents. This study set out to investigate the reliability and validity of the Turkish version of the Orthorexia Nervosa Inventory (ONI) in a clinical adolescent sample. METHODS: 266 adolescents aged 12-18 years, who applied to the Department of Child and Adolescents Psychiatry were included in the study. Participants completed sociodemographic data form, ONI, Eating Attitude Test, Revised Child Anxiety and Depression Scale-Child Version and ORTO-15. RESULTS: The Cronbach's alpha coefficient for the ONI reached 0.92, indicating very good internal consistency. Total factor scores and Cronbach alpha values for behaviors, impairments, and emotions were found to be 0.84, 0.84, and 0.83, respectively. The CFA performed supported the three-factor structure of the ONI obtained in the first sample. The minimum discrepancy per degree of freedom = 1.89 and the model generally fit well to the structure (RMSEA = 0.058, SRMR = 0.033, CFI = 0.92, TLI = 0.91). DISCUSSION: This study has shown that the Turkish version of the ONI is a valid and reliable scale for specifying the tendency for Orthorexia Nervosa in a Turkish adolescent population. These findings contribute in several ways to our understanding of orthorexic tendencies and provide a basis for more concrete research data that can be obtained by using the ONI, which is a reliable scale in studies to be conducted among adolescents. LEVEL OF EVIDENCE: Level V, descriptive cross-sectional study.

Changing Trends of Diagnoses in a Child and Adolescent Psychiatry Outpatient Clinic Before and During COVID-19: An Analysis of Registered Data.

BACKGROUND: Investigating the outpatient clinic admissions of children and adolescents significantly affected by the pandemic is crucial in developing policy and intervention methods in the future. The aim of this study is to analyze the admissions of child and adolescent psychiatry outpatient clinics, during the first year since the imposed rearrangements of the COVID-19 pandemic, compared to the one year before. SUBJECTS AND METHODS: This study was conducted between March 2019 and March 2021 and the total number of 5833 patients referred to the hospital was 3168 in the pre-pandemic period (Pre-P) and 2665 in the pandemic (In-P) period. After excluding 78 not fulfilling inclusion criteria, these screened cases were randomized for 700 patients for Pre-P and 700 for In-P within each group. RESULTS: Externalization Disorders and Neurodevelopmental Disorders were the most represented diagnoses categories between the two time periods and showed a statistically significant decrease in admission during the pandemic (p=0.002, p=0.024, respectively). Internalization disorders and the undiagnosed group showed a statistically significant increase during the pandemic (p=0.024, p<0.001, respectively). Significant differences were also shown in the treatment plan (need for pharmacological and psychotherapy) has increased. CONCLUSIONS: This study stands out by providing data on the trend of diagnosis in a child and adolescent psychiatry outpatient clinic before and during the pandemic period. To dominate these trends would be important to provide a basis for policymakers to plan appropriate management methods and levels of support for children and adolescents with different mental disorders.

Prevalence and correlates of hoarding behavior and hoarding disorder in children and adolescents.

Although hoarding symptoms are reported to begin in childhood and adolescence, the true prevalence of the disorder in this age group is unknown. This study aims to estimate the prevalence of hoarding disorder (HD) in children and adolescents. The present study was planned as a two-stage epidemiological research. In the first stage, the Children's Saving Inventory (CSI) and informed consent forms were delivered to a group of students' parents. In the second stage, one-on-one psychiatric interviews with a physician were planned with the families and children who had hoarding behavior (HB), as described by their parents. The DSM-5-based HD interview and the Development and Well-Being Assessment (DAWBA) diagnostic tool were used to detect prevalence of HD and comorbid psychiatric disorders. A total of 3249 children were included in the study, and 318 children and their parents were evaluated in the second stage. As a result of the second assessment, 32 out of 318 children met the HD diagnostic criteria. The estimated prevalence of HD was 0.98% (95% CI 0.7-1.4). Hoarding disorder was found more frequently in females (F/M = 3/1). After a logistic regression analysis, variables such as female sex and the presence of any psychopathology were identified as independent correlates of HD. More than half (56.2%) of the children diagnosed as having HD also had a comorbid psychiatric disorder. In the present study, the two-stage evaluation method was used in a large pediatric sample to determine the estimated prevalence of HD, as well as the factors associated with the disorder and comorbid psychiatric disorders.

Evaluation of hematological inflammatory markers in children and adolescents with attention deficit/hyperactivity disorder.

AIM: This study aims to investigate whether there is a relationship between attention-deficit/hyperactivity disorder (ADHD) and inflammation, using hematologic inflammatory parameters in a large sample of children and adolescents. METHOD: This retrospective study comprises 347 children and adolescents with ADHD between 6 and 17 years of age who met the inclusion criteria as well as 205 healthy children and adolescents in the control group. Serum parameters such as white blood cell (WBC), neutrophil, lymphocyte, platelet, monocyte, eosinophil and basophil counts, mean platelet volume (MPV), and platelet distribution width (PDW) were recorded from complete blood count tests at the time of admission, while neutrophil lymphocyte ratio (NLR), platelet lymphocyte ratio (PLR), and other ratios were calculated based on these counts. RESULTS: NLR, PLR, MPV, PDW, WBC and neutrophil counts were significantly higher in children and adolescents with ADHD than in the control group. In the ADHD group, NLR, WBC and neutrophil counts were significantly higher in girls than in boys. CONCLUSIONS: The results of this study support the hypothesis that inflammation plays an important role in the complex pathophysiology of ADHD. In addition, our data confirm that easily obtainable and reliable hematological parameters can be used when investigating the role of inflammation in ADHD etiology (Tab. 4, Ref. 44).

The prevalence of childhood mental disorders in different habitations: are we underestimating their prevalence in rural areas?

Background: Recently, the number of epidemiological studies of child psychiatry has increased, but most of these studies focus on children living in city centres. Unfortunately, one-third of the global population lives in rural areas, and various habitations exist in cities, including city centres and slums. Moreover, despite having a high risk for psychopathology development, individuals who have symptoms but fall outside the limits specified for diagnoses due to having fewer symptoms than those mentioned in diagnostic systems and individuals who do not fulfil the impairment criteria listed in diagnostic systems are not addressed in these studies.Aim: The purpose of this study was to understand the prevalence of DSM-IV childhood psychiatric disorders and subthreshold psychiatric problems from middle-class city centres, city centres in slums, towns and village areas of Turkey with a nationally representative sample using a state-of-the-art methodology.Methods: In total, 1080 children were randomly selected from second and third grades for the study's sample. A structured diagnostic interview was applied.Results: The overall prevalence of psychiatric disorders was 8.4% (n = 91); 7.2% (n = 78) of the children were subthreshold cases. The general prevalence of psychiatric disorders was higher among children living in villages with respect to all the other human settlement areas included in the study.Conclusions: Although global urbanisation foregrounds the mental health of children living in cities, children in rural areas may have a greater risk of developing a mental disorder. This study confirmed that an equal amount of children fell outside of the diagnosing limits.

The Association Between Bedtime Procrastination, Sleep Quality, and Problematic Smartphone Use in Adolescents: A Mediation Analysis.

BACKGROUND:  This study investigated the relationships between smartphone use, bedtime procrastination, and adolescent sleep quality. Specifically, the study investigated whether bedtime procrastination mediates the relationship between problematic smartphone use (PSU) and sleep quality. METHODS:  A sample of 245 adolescents aged 13-18 participated in the study. The Smartphone Addiction Scale-Short Version, Bedtime Procrastination Scale, and Adolescent Sleep-Wake Scale were used to assess PSU signs, bedtime procrastination, and sleep quality, respectively. In addition, smartphone usage habits were assessed through a purpose-built questionnaire. RESULTS:  It was found that 46.9% of the adolescents had PSU signs, they used smartphones for an average of 2.8 hours per day, 90.6% used smartphones in bed, they used smartphones in bed for an average of 4.9 days per week, and the average duration of smartphone use in bed was 2.3 hours per day. Correlation analyses showed that poor sleep quality was positively associated with the duration of smartphone use in bed, number of smartphone activities, PSU signs, and bedtime procrastination. The relationship between PSU and sleep quality is mediated by bedtime procrastination, according to mediation analysis. CONCLUSION:  This study demonstrated the negative efect of smartphone use on sleep quality in adolescents. The results also indicate that bedtime procrastination may play a mediating role between PSU and sleep quality. Thus, interventions such as sleep hygiene targeting bedtime procrastination may improve adolescents' sleep quality with PSU signs.

An assessment of dynamic facial emotion recognition and theory of mind in children with ADHD: An eye-tracking study.

Deficits in social cognition in attention deficit hyperactivity disorder (ADHD) have been associated with difficulties in functioning. Since recognizing emotional facial expressions is essential for developing the perceptual components of the theory of mind (ToM), it is important to assess this relationship in children with ADHD. This study therefore compared the recognition of emotional stimuli and gaze patterns between children with ADHD and healthy children using eye-tracking with dynamic facial images. It also examined the relationship between facial emotion recognition accuracy, gaze patterns, ToM scores, and ADHD symptoms. Children with ADHD aged 8-13 (n = 47) and a control group (n = 38) completed a facial emotion recognition test, ToM tests, and the Conners' Parent Rating Scale. Participants' gaze patterns in response to dynamic facial emotion expressions were recorded using eye-tracking technology. Children with ADHD exhibited significantly lower accuracy in the recognition of the facial expressions of disgust and anger. The percentage fixation in the eye region was also significantly lower for happy, angry, sad, disgusted, and neutral emotions in the children with ADHD compared to the control group. No relationship was determined between the percentage of fixations on facial areas of interests and ADHD symptoms or ToM tests. This study provides evidence that children with ADHD experience deficits in visual attention to emotional cues. In addition, it suggests that facial emotion recognition deficits in children with ADHD represent a separate domain of social cognition that develops independently of ToM skills and core symptoms. Understanding and treating the social difficulties of individuals with ADHD may help improve their social functioning.

Social media addiction, escapism and coping strategies are associated with the problematic internet use of adolescents in Türkiye: a multi-center study.

Introduction: The literature highlighted that problematic internet use can have detrimental consequences on individuals' well-being. Social media addiction, escapism and coping skills are closely related to problematic internet use. However, no study has currently examined the relationship between problematic internet use and social media use, escapism and coping skills. Method: This multicenter cross-sectional designed study evaluated the relationships between problematic internet use and social media addiction, escapism, and coping skills in 508 adolescents (319 female) aged 14-18 years. In order to collect data, sociodemographic data form, Internet Addiction Scale, Social Media Addiction Scale, Escapism Scale and Kidcope Adolescent Version have been used. First, adolescents who scored ≥50 on the Internet Addiction Test were classified as the problematic internet use group; adolescents who scored <50 were classified as the control group. Then, the relationships between problematic internet use and social media addiction, escapism and coping skills were evaluated. Results: The results showed that problematic internet use was associated with duration of social media use, impairment in social media-related functionality, preferring virtual life, and virtual pleasure, escapism, avoidant and negative coping strategies. Conclusion: These findings may provide an empirical basis for problematic internet use prevention and intervention in adolescence.

Objective Parameters in Attention Deficit Hyperactivity Disorder: Eye and Head Movements.

OBJECTIVE: We aimed to evaluate eye and head movements, which are objective parameters in ADHD. Method: While the children were watching the course video task, which included the relevant (teacher and smart board) and irrelevant (any regions outside the relevant area) areas of interest, their eye movements were evaluated through eye tracking, and video recordings were made simultaneous. Head position estimation was made using through video recordings. The proportion of total fixation duration on areas of interest (PFDAOI) and saccade count, amplitude, velocity for eye movements, number of total head movements and angular change of head movement in x-y-z axes for head movements were compared. RESULTS: Children with ADHD had lower PFDAOI on the relevant area, and had more saccade and head movements The angular change of head movement in the x-axis was higher in the ADHD group. CONCLUSION: In the assessment of ADHD, the eye and head movements may be particulary useful.

A comparison of clinical characteristics and course predictors in early- and childhood-onset schizophrenia.

AIM: The aim of this study was to compare the clinical characteristics of childhood-onset schizophrenia (COS) and early-onset schizophrenia (EOS) during the first- episode psychosis and the stable period, to examine psychopharmacological treatment approaches, and to investigate potential predictive factors for prognosis. METHODS: Demographic, clinical, and psychopharmacological therapy data for 31 patients diagnosed with COS and 66 with EOS were retrieved from the file records in this multicenter study. Symptom distribution and disease severity and course were evaluated twice, in the acute psychotic stage and in the latest stable phase, during follow-up using the positive and negative syndrome scale (PANSS) and clinical global impression (CGI) scales. RESULTS: A statistically significant difference was observed between the groups' CGI improvement rates and median last stable stage PANSS positive, negative, and general psychopathology symptom scores (p = .005, p = .031, p = .005, and p = .012, respectively). Premorbid neurodevelopmental disorder and obsessive-compulsive disorder and comorbidities were more common in the COS group (p = .025 and p = .030, respectively), and treatment required greater multiple antipsychotic use in that group (p = .013). When the independent variables affecting the difference between pre- and post-treatment PANSS scores were examined using linear regression analysis, the model established was found to be statistically significant (F = 5.393; p = .001), and the group variable (p = .024), initial disease severity (p = .001), and socioeconomic level (p = .022; p = .007) emerged as predictive factors for the disease course. CONCLUSION: Although early diagnosis and treatment is an important factor in improving prognosis in schizophrenia, more specific predictors for schizophrenia need to be identified. Additionally, preventive programs and pharmacological methods need to be developed in children with neurodevelopmental problems, particularly those from low socioeconomic status families.

Cardiovascular Disease Risk in Children and Adolescents with Attention Deficit/Hyperactivity Disorder.

Objective: The aim of this case-controlled study is to evaluate chronic inflammation, subclinical atherosclerosis and cardiovascular disease risk in children and adolescents with ADHD. Methods: A total of 51 medication-free children and adolescents with ADHD and 51 healthy controls were included in this study. K-SADS-PL was used to determine the diagnosis of ADHD and other psychiatric disorders. Conners' Parent Rating Scale-Revised Short Form and the Conners' Teacher Rating Scale-Revised Short Form severity of ADHD was used to evaluate severity of ADHD. In order to evaluate subclinical atherosclerosis, common carotid intima media thickness (IMT), epicardial adipose tissue thickness (EAT), and periaortic adipose tissue thickness (PAT) were assessed as well as clinical parameters. Results: The IMT (0.037 ± 0.005 cm vs. 0.026 ± 0.003 cm), EAT (0.472 ± 0.076 cm vs. 0.355 ± 0.051 cm), and PAT (0.135 ± 0.016 cm vs. 0.118 ± 0.009 cm) measurements were significantly higher in the ADHD group than in the control group. Additionally, partial correlation analyses revealed that a positive correlation was observed between IMT and EAT, and PAT measurements separately. Multivariate linear regression analysis revealed that, body mass index (BMI) positively predicted IMT. Also, age and BMI positively predicted the EAT levels of the subjects with ADHD. Conclusion: Our results suggest that children and adolescents with ADHD have a risk for cardiovascular disease. For this reason, subclinical atherosclerosis should be taken into consideration in the follow-up and treatment of ADHD for cardiovascular disease risk.

A Review of Turkish Self-Reporting Instruments for Sleep Problems in Children, Adolescents, and Adults.

Many self-reported sleep instruments have been developed and adapted into many languages, including Turkish, and their psychometric properties have been examined. This study aims to present a literature review on self-report instruments adapted into Turkish and used to assess diferent aspects of sleep in child, adolescent, and adult populations. Terms related to sleep self-report instruments were applied to 4 search engines: PubMed, EMBASE, Scopus, and Google Scholar. The search engines were searched for articles published until October 2023. Assessment instruments whose psychometric properties were not evaluated in Turkish language were excluded from the study. This study defined 27 sleep instruments, including 9 child and adolescent and 18 adult sleep instruments. Increasing the availability of Turkish sleep tools for children and adult will improve the chance of intervention by increasing the identification of sleep disorders.

Functional Impairments and Related Factors in Adolescents with Attention Deficit Hyperactivity Disorder During the COVID-19 Normalization Stage.

Background: Attention deficit hyperactivity disorder is a disorder associated with significant functional impairments that can have important consequences for the individual and the society. Those with attention deficit hyperactivity disorder were reported to be more vulnerable in the face of difficulties and experience more psychological problems during the coronavirus disease 2019 pandemic. It was shown that the psychological problems experienced during the pandemic could persist during the normalization stage. We aimed to assess functional impairment in adolescents with attention deficit hyperactivity disorder and the related factors during the normalization stage which involved the initiation of fully face-to-face schooling practices. Methods: This is a cross-sectional study including attention deficit hyperactivity disorder (n = 52) and a healthy control group (n = 52). Functional impairment was assessed using the Weiss functional impairment rating scale self and parent forms. We also examined the factors associated with functional impairment (internalizing-externalizing problems, parenting strategies, and perceived expressed emotion). Results: Adolescents with attention deficit hyperactivity disorder had higher functional impairment scores on Weiss functional impairment rating scale self and parent in all sub-domains and total. Weiss functional impairment rating scale self and parent total mean score had a positive correlation with negative parenting and externalizing-internalizing scores and a negative correlation with the positive parenting score. Weiss functional impairment rating scale-self total mean score was positively correlated with negative parenting and externalizing-internalizing scores and perceived expressed emotion scores. Conclusion: Our results suggest that the effects of the pandemic on children's functioning may persist in the normalization stage. For a comprehensive evaluation and effective intervention, it is important that comorbid symptoms, parenting strategies, and the perceived family climate are evaluated from the perspectives of both the parent and the adolescent.

Psychometric Properties of the Turkish Version of the Children's Saving Inventory in a Clinical Sample.

OBJECTIVE: The Children's Saving Inventory (CSI) is a measurement tool developed to assess hoarding behavior in children. This study aims to investigate the psychometric properties of the Turkish version of the CSI in a clinical sample of children and adolescents. MATERIALS AND METHODS: The study sample consisted of 52 children and adolescents diagnosed with obsessive-compulsive disorder in the 8-17 age group and their families. As a structured diagnostic interview, the Development and Well-Being Assessment (DAWBA) was applied to all participants included in the research. Hoarding disorder (HD) diagnosis was made clinically by considering the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) diagnostic criteria. The Children's Yale-Brown Obsessive- Compulsive Scale Symptom Checklist (CY-BOCS) was administered by an experienced clinician. The parents and children filled out the Obsessive-Compulsive Inventory-Child Version (OCI-CV) and CSI scales independently. RESULTS: The 20-item CSI Turkish version demonstrated good internal consistency. This 4-factor structure of the scale was confirmed by confirmatory factor analysis. Children's Saving Inventory showed convergent and discriminant validity with the OCI-CV and CY-BOCS subscales, and the higher CSI total scores in children and adolescents diagnosed with HD confirmed the construct validity. CONCLUSION: These findings support the use of the CSI Turkish version as a valid and reliable scale to investigate the hoarding behavior of children and adolescents in a clinical sample. In addition, the CSI Turkish version is currently the only validated instrument to evaluate hoarding behavior in children and adolescents, as rated by parents in Türkiye.

A clinical follow-up study of dialectical behavior therapy skills groups among female adolescents diagnosed with depressive disorder.

Our aim was to evaluate longitudinal data for adolescents who were treated with Dialectical Behavior therapy (DBT) skills groups having been previously diagnosed with depressive disorder. Intervention with an observational cross-sectional design was implemented to evaluate the treatment outcome of a 10-week DBT skills groups with female adolescents with depression. After the patients were identified for enrollment, parents and adolescents were evaluated with psychometric measurements pre-, post-intervention, and at one-year follow-up. Repeated measures analysis was undertaken with the Child Depression Inventory (CDI), Pediatric Quality of Life Inventory (PedsQL) and Strengths and Difficulties Questionnaire (SDQ) for participants. Statistical significance was detected for self-report CDI scores and both self-report and parent SDQ and PedsQL scores. This study is the first DBT intervention in Turkish children, shows that a group DBT skills groups training can be adapted and put into practice successfully with depressed Turkish adolescents.

Hemogram parameters in childhood anxiety disorders: Could anxiety disorders be related with inflammation?

In the etiology of anxiety disorders, immune system and inflammation are suggested to play a role. This study hypothesized that there is a relationship between anxiety disorders and inflammation. This retrospective study included 131 children and adolescents between the ages 6-17 who were diagnosed with anxiety disorders. Control group consisted of 131 healthy children with no history of psychiatric disorders or chronic inflammatory conditions. White blood cell (WBC), neutrophil (NEU), lymphocyte, monocyte, basophil, eosinophil values and other hematological markers were noted. From those values, neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR), monocyte/lymphocyte ratio (MLR), and other ratios were calculated. WBC and NEU values were significantly higher in children and adolescents with anxiety disorder compared to the control group. In addition, NLR, MLR and PLR values were significantly higher than the control group. Other measured parameters and calculated values did not differ between study groups. No statistically significant difference was found between Generalized Anxiety Disorder (GAD) group, Social Anxiety Disorder group and Not Otherwise Specified Anxiety Disorders (AD-NOS) group in terms of hematological markers except RDW-CV. Only RDW-CV was found statistically significantly higher in AD-NOS group compared to GAD. These results show that there is an association between inflammation and anxiety disorders. Also, it is postulated that hematological parameters can be used as a useful marker in the follow-up of patients with anxiety disorders.

Methylphenidate-Induced Enuresis: 3 Case Reports.

ABSTRACT: Attention-deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental disorder in children and adolescents. Methylphenidate (MPH) is one of the most widely used drugs in the treatment of ADHD. Enuresis can occur comorbidly with ADHD. However, enuresis is sometimes seen in patients with ADHD as an adverse effect of MPH treatment. In contrast, in some cases, MPH reportedly improves enuresis in patients with ADHD comorbid with enuresis. The literature is contradictory with regard to the relationship between MPH and enuresis. This report presents the cases of 3 children with ADHD who displayed enuresis during MPH treatment.