Patient's Perspective on Psychiatric Drugs: A Multicenter Survey-Based Study.

OBJECTIVE: We aimed to identify the expectations and preferences for medication and medical decision-making in patients with major psychiatric disorders. METHODS: A survey was conducted among patients with major psychiatric disorders who visited psychiatric outpatient clinics at 15 hospitals between 2016 and 2018 in Korea. The survey consisted of 12 questions about demographic variables and opinions on their expectations for medication, important medical decision-makers, and preferred drug type. The most preferred value in each category in the total population was identified, and differences in the preference ratio of each item among the disease groups were compared. RESULTS: A total of 707 participants were surveyed. In the total population, patients reported high efficacy (44.01%±21.44%) as the main wish for medication, themselves (37.39%±22.57%) and a doctor (35.27%±22.88%) as the main decision makers, and tablet/capsule (36.16%±30.69%) as the preferred type of drug. In the depressive disorders group, the preference ratio of high efficacy was significantly lower, and the preference ratio of a small amount was significantly higher than that of the psychotic disorder and bipolar disorder groups. The preference ratio of a doctor as an important decision maker in the bipolar disorder group was higher compared to the other groups. CONCLUSION: This study revealed the preference for medications and showed differences among patients with psychiatric disorders. Providing personalized medicine that considers a patient's preference for the drug may contribute to the improvement of drug compliance and outcomes.

Association of the Comprehensive Attention Test and the Korean Wechsler Intelligence Scale for Children-Fourth Edition in Children and Adolescents With Attention-Deficit/Hyperactivity Disorder.

Objectives: This study aimed to investigate the correlation between the Comprehensive Attention Test, Korean-Wechsler Intelligence Scale for Children-Fourth Edition, and Attention-Deficit/Hyperactivity Disorder (ADHD) Rating Scale-IV scores in children and adolescents with ADHD. Methods: Fifty-five children and adolescents diagnosed with ADHD and not taking psychiatric medications were included in this retrospective study. A correlation analysis was performed. Results: Although simple visual and auditory selective attention have diagnostic value in traditional continuous performance tests, this study revealed that inhibition-sustained attention and interference-selective attention are also effective in evaluating ADHD. Furthermore, the correlation between the attention and intelligence test scores varied depending on the use of visual or auditory stimuli. Conclusion: The findings of this study contribute to clarifying our understanding of the cognitive characteristics of children and adolescents with ADHD and can be used in future research.

Development of the Korean Form of the Premonitory Urge for Tics Scale: A Reliability and Validity Study.

OBJECTIVES: This study aimed to evaluate the reliability and validity of the Korean Form of the Premonitory Urge for Tics Scale (K-PUTS). METHODS: Thirty-eight patients with Tourette's disorder who visited Jeonbuk National University Hospital were assessed with the K-PUTS. Together with the PUTS, the Yale Global Tic Severity Scale (YGTSS), the Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS), the attention-deficit/hyperactivity disorder (ADHD) rating scale (ARS), and the Adult ADHD Self-Report Scale (ASRS) were implemented to evaluate concurrent and discriminant validity. RESULTS: The internal consistency of items on the PUTS was high, with a Cronbach's α of 0.79. The test-retest reliability of the PUTS, which was administered at 2 weeks to 2 months intervals, showed high reliability with a Pearson correlation coefficient of 0.60. There was a significant positive correlation between the overall PUTS score and the YGTSS score, showing concurrent validity. There was no correlation between the PUTS, CY-BOCS, and ASRS scores, demonstrating the discriminant validity of the PUTS. Factor analysis for construct validity revealed three factors: "presumed functional relationship between the tic and the urge to tic," "the quality of the premonitory urge," and "just right phenomena." CONCLUSION: The results of this study indicate that the K-PUTS is a reliable and valid scale for rating premonitory urge of tics.

Risk Factors Associated with the Fear of Falling in Community-Living Elderly People in Korea: Role of Psychological Factors.

Little is known about the risk factors for the fear of falling in elderly Korean individuals. Thus, the present study aimed to investigate the risk factors for fear of falling in a representative elderly population of over 10,000 individuals aged 65 years and older. A multivariate multinomial analysis revealed that the risk factors associated with a severe fear of falling were being female [odds ratio (OR)=4.396], older age (OR=5.550 for those aged ≥85 years), lower level of education (OR=0.719 for those with ≥13 years of schooling), chronic illness (OR=2.788 for those with more than three chronic illnesses), poor subjective health (OR=6.268), functional impairments (OR=2.340), a history of falling (OR=7.062), and depression (OR=1.774). The ORs for each of these risk factors were particularly high in participants with a severe fear of falling. Particularly, a history of falling and/or poor subjective health status had strong independent associations with the fear of falling. The present findings may help health care professionals identify individuals that would benefit from interventions aimed at reducing the fear of falling.

Prevalence and correlates of bipolar spectrum disorder comorbid with ADHD features in nonclinical young adults.

BACKGROUND: We investigate the rate of bipolar spectrum disorder comorbid with ADHD features using two screening instruments, the Mood Disorder Questionnaire (MDQ) and the Wender Utah Rating Scale (WURS), in a nonclinical young adult population. METHODS: College and graduate students aged 18 years or older from four universities in Korea were selected. Comorbidity was defined as both MDQ positivity and WURS positivity. To look for a trend in clinical characteristics according to the severity of the comorbid condition, we used the Jonckheere-Terpstra test and the linear-by-linear association test. We performed ordinal logistic regression analysis to identify predictors associated with the studied comorbid condition. RESULTS: A total of 1948 subjects were included in the study, and 15 (0.8%) of them were found to have the comorbid condition defined as both MDQ positivity and WURS positivity. As the severity of the comorbid condition increased, we saw trends of lower socioeconomic status, higher history of suicidality, higher history of self-mutilating behavior, higher history of parental abuse or abuse by other people, more severe depression, and more severe problematic alcohol use. The ordinal regression analysis showed that history of parental abuse, depression, and problematic alcohol use predicted the comorbid condition. LIMITATIONS: We did not use standardized diagnostic tools for case findings. CONCLUSION: The condition of comorbid bipolar spectrum disorder with ADHD features had a notable prevalence of 0.8% in a nonclinical young adult sample. This comorbid condition was found to be related with serious clinical phenomenology.

Suicidal Ideation Among Korean Elderly: Risk Factors and Population Attributable Fractions.

OBJECTIVES: The objective of this study was to investigate the risk factors of suicidal ideation and their population attributable fraction (PAF) in a representative sample of the elderly population in Korea. METHOD: We examined the data set from the Survey of Living Conditions and Welfare Needs of Korean Older Persons, which was conducted by the Korea Institute for Health and Social Affairs (KIHASA) in 2011. In that survey, 10,674 participants were randomly selected from those older than age 65. Simultaneous multivariate logistic regression was used to investigate the risk factors of suicidal ideation in terms of their sociodemographic and health-related variables. Subsequently, the PAF was calculated with adjustment for other risk factors. RESULTS: The weighted prevalences of depression and suicidal ideation were 30.3% and 11.2%, respectively. In multivariate analysis, factors significantly associated with decreased risk of suicidal ideation included old-old age (odds ratio [OR] = 0.66 for 75 to 79 years, OR = 0.52 for 80 to 84 years, OR = 0.32 for older than 85 years), economic status (OR = 0.59 for 5th quintile; more than US$25,700 per year), whereas those associated with increased risk included poor social support (OR = 1.28), currently smoking (OR = 1.42), sleep problems (OR = 1.74), chronic illness (OR = 1.40), poor subjective health (OR = 1.56), functional impairment (OR = 1.45), and depression (OR = 4.36). Depression was associated with a fully adjusted PAF of 45.7%, followed by chronic illness (19.4%), poor subjective health status (18.9%), sleep problems (14.1%), functional impairment (4.9%), poor social support (4.2%), and currently smoking (3.6%). CONCLUSIONS: Preventive strategies focused particularly on depression might reduce the impact of suicidal ideation in the elderly population. Also, specific mental health centers focused on the specific needs of the elderly population should be established to manage suicidal risk.

Effects of switching to aripiprazole from current atypical antipsychotics on subsyndromal symptoms and tolerability in patients with bipolar disorder.

We evaluated the effectiveness of aripiprazole among bipolar patients who had switched to this medication as a result of difficulty maintaining on their prestudy atypical antipsychotics (AAPs) because of subsyndromal mood symptoms or intolerance. This study included 77 bipolar patients who were in syndromal remission with an AAP as monotherapy or with an AAP combined with a mood stabilizer(s) who needed to switch from their present AAP because of subsyndromal symptoms or intolerance. At 24 weeks after switching to aripiprazole, the remission rates on the Montgomery-Åsberg Depression Rating Scale (MADRS) and on both the MADRS and the Young Mania Rating Scale were increased significantly in the full sample and in the inefficacy subgroup. In the inefficacy subgroup, the MADRS score change was significant during the 24 weeks of study. Total cholesterol and prolactin decreased significantly after switching to aripiprazole. The proportion of patients who had abnormal values for central obesity and hypercholesterolemia decreased significantly from baseline to week 24. These findings suggest that a change from the current AAP to aripiprazole was associated with improvement in subsyndromal mood symptoms and several lipid/metabolic or safety profile parameters in patients with bipolar disorder with tolerability concerns or subsyndromal mood symptoms.

Clinical assessment of bipolar depression: validity, factor structure and psychometric properties of the Korean version of the Bipolar Depression Rating Scale (BDRS).

BACKGROUND: The Bipolar Depression Rating Scale (BDRS) is a scale for assessment of the clinical characteristics of bipolar depression. The primary aims of this study were to describe the development of the Korean version of the BDRS (K-BDRS) and to establish more firmly its psychometric properties in terms of reliability and validity. METHODS: The study included 141 patients (62 male and 79 female) who had been diagnosed with bipolar disorder, were currently experiencing symptoms of depression, and were interviewed using the K-BDRS. Other measures included the Montgomery and Asberg Depression Scale (MADRS), the 17-item Hamilton Depression Scale (HAMD), and the Young Mania Rating Scale (YMRS). Additionally, the internal consistency, concurrent validity, inter-rater reliability, and test-retest reliability of the K-BDRS were evaluated. RESULTS: The Cronbach's α-coefficient for the K-BDRS was 0.866, the K-BDRS exhibited strong correlations with the HAMD (r = 0.788) and MADRS (r = 0.877), and the mixed symptoms score of the K-BDRS was significantly correlated with the YMRS (r = 0.611). An exploratory factor analysis revealed three factors that corresponded to psychological depressive symptoms, somatic depressive symptoms, and mixed symptoms. CONCLUSIONS: The present findings suggest that the K-BDRS has good psychometric properties and is a valid and reliable tool for assessing depressive symptoms in patients with bipolar disorder.

Current prescription pattern of maintenance treatments for bipolar patients in Korea: A focus on the transition from acute treatments.

AIMS: We examined prescription patterns in maintenance treatment for recovered bipolar patients and compared these with acute treatments. METHODS: Using retrospective methods, the bipolar patients in clinical recovery (Clinical Global Impression Bipolar Version score ≤ 2 for 6 months) after acute episode were selected. We reviewed differences between prescription patterns at remission and after a maintenance period of at least 6 months. RESULTS: A total of 340 bipolar disorder patients were selected. During the maintenance period, more than half of the patients (192, 56.5%) took a mood stabilizer (MS) + antipsychotic (AP) combination. Among the MS, valproate (149, 43.8%) was most prescribed, and lithium (98, 28.8%) was second, but as patients moved into maintenance treatment, lithium use decreased, and the use of lamotrigine (86, 25.3%) increased. Preferred AP were quetiapine (125, 36.8%), aripiprazole (67, 19.7%), risperidone (48, 14.1%), and olanzapine (39, 11.5%). The use of olanzapine in maintenance was greatly decreased compared with that during acute treatment (67, 19.7%). Most patients did not take an antidepressant (AD), but the proportion using one or more AD was increased during maintenance (17.9% to 30.3%), and bupropion (28, 8.2%) was the preferred AD. Doses were decreased in all drugs, but lamotrigine was maintained at a dose of 133.2 ± 68.5 mg/day. CONCLUSIONS: The most common prescription combination for bipolar maintenance treatment was MS + AP. The use of AP was decreased, whereas the use of AD in combination with MS and/or AP was increased. The doses of MS and AP were generally decreased during the maintenance periods, with the exception of lamotrigine.

Factors associated with depression among elderly Koreans: the role of chronic illness, subjective health status, and cognitive impairment.

OBJECTIVES: The objective of this cross-sectional study was to investigate the relationship between depression in elderly individuals and chronic illness, subjective health status, and cognitive impairment. METHOD: This study used the dataset of the Survey of Living Conditions and Welfare Needs of Korean Older Persons, which was conducted by the Korea Institute for Health and Social Affairs in 2011. Participants (n = 10,674) were randomly selected from a pool of individuals aged 65 years and older. Elderly depression was evaluated by the short version of the Geriatric Depression Scale. Multivariate logistic regression was used to investigate factors associated with depression in terms of their sociodemographic and health-related characteristics. RESULTS: Our results revealed that chronic illness, subjective health status, and cognitive impairment were significant factors associated with depression. In particular, subjective health status showed the highest odds ratio (OR) (OR for bad subjective health status = 4.290, P < 0.001), followed by chronic illness (OR for three or more chronic illnesses = 1.403, P < 0.01) and cognitive impairment (OR = 1.347, P < 0.001) in the final model. Interestingly, the significant association between chronic illness and depression was attenuated (OR for three or more chronic illnesses = 1.403, P = 0.01) or even disappeared (OR for two chronic illnesses = 1.138, P = 0.274; OR for one chronic illnesses = 0.999, P = 0.996) after adjustment for subjective health status in the final model; this may be attributable to the close relationship among the variables studied: chronic illness, subjective health status, and depression. CONCLUSIONS: Development and implementation of prevention strategies, including management of chronic illness, individual's perception of health status, and cognitive impairment, could possibly reduce the impact of depression.

Is serum 25-hydroxyvitamin D associated with depressive symptoms and suicidal ideation in Korean adults?

OBJECTIVE: Mixed results exist regarding the role of vitamin D deficiency in depression and suicidal ideation. The present study investigated the relationships among vitamin D, depressive symptoms, and suicidal ideation in a large representative of the general population of Korea. METHOD: The data from the fifth Korea National Health and Nutrition Examination Surveys conducted by the Division of Chronic Disease Surveillance, Korea Centers for Disease Control and Prevention, from 2010 to 2012 were investigated. A total of 15,695 subjects aged 20 and older were included in analysis. Depressive symptoms and suicidal ideation were evaluated based on self-report information. The serum 25-hydroxyvitamin D concentrations were measured by radioimmunoassay. The associations among vitamin D, depressive symptoms, and suicidal ideation were explored using multivariate logistic regression analysis adjusting for various confounding variables including sociodemographic and health-related variables. RESULTS: Serum 25-hydroxyvitamin D concentrations were not significantly different depending on the depressive symptoms (participant with depressive symptom, n = 2085, 17.10 ng/ml; without depressive symptom, n = 13,610, 17.36 ng/ml; p = 0.142) and suicidal ideation (participant with suicidal ideation, n = 2319, 17.31 ng/ml; without suicidal ideation, n = 13,374, 17.33 ng/ml; p = 0.926). After adjustment for sociodemographic and health-related factors, this lack of relationship was held consistent in the multivariate logistic regression. CONCLUSIONS: Significant associations were not observed among vitamin D, depressive symptoms, and suicidal ideation in Korean adults. Further studies are warranted to gain a better understanding of the association among vitamin D, depressive symptoms, and suicidal ideation.

Smoking topography in Korean American and white men: preliminary findings.

UNLABELLED: This is the first study of Korean Americans' smoking behavior using a topography device. Korean American men smoke at higher rates than the general U.S. POPULATION: Korean American and White men were compared based on standard tobacco assessment and smoking topography measures. They smoked their preferred brand of cigarettes ad libitum with a portable smoking topography device for 24 h. Compared to White men (N = 26), Korean American men (N = 27) were more likely to smoke low nicotine-yield cigarettes (p < 0.001) and have lower Fagerstrom nicotine dependence scores (p = 0.04). Koreans smoked fewer cigarettes with the device (p = 0.01) than Whites. Controlling for the number of cigarettes smoked, Koreans smoked with higher average puff flows (p = 0.05), greater peak puff flows (p = 0.02), and shorter interpuff intervals (p < 0.001) than Whites. Puff counts, puff volumes, and puff durations did not differ between the two groups. This study offers preliminary insight into unique smoking patterns among Korean American men who are likely to smoke low nicotine-yield cigarettes. We found that Korean American men compensated their lower number and low nicotine-yield cigarettes by smoking with greater puff flows and shorter interpuff intervals than White men, which may suggest exposures to similar amounts of nicotine and harmful tobacco toxins by both groups. Clinicians will need to consider in identifying and treating smokers in a mutually aggressive manner, irrespective of cigarette type and number of cigarette smoked per day.

The validities and efficiencies of korean ADHD rating scale and korean child behavior checklist for screening children with ADHD in the community.

OBJECTIVE: The purpose of this study is to examine the validity of primary screening tools for attention deficit hyperactivity disorder (ADHD) in a community-based sample of children using the Korean version of the Child Behavior Checklist (K-CBCL) and the Korean version of the ADHD Rating Scale (K-ARS). METHODS: A large-scale community-based study for ADHD screening was conducted in the Jeollabuk province in the Republic of Korea. In 2010-2011, we surveyed a total of 49,088 first- and fourth-grade elementary school students. All of the participants in this study were assessed by the K-ARS-Parent version (K-ARS-P) and the K-ARS-Teacher version (K-ARS-T) as the primary screening instruments. The Diagnostic Interview Schedule for Children Version IV (DISC-IV) was used for confirming the diagnosis of ADHD. DISC-IV was administered to subjects who received top 10% scores in the K-ARS-P or K-ARS-T tests. RESULTS: Of the 3,085 subjects who completed the DISC-IV, 1,215 were diagnosed as having ADHD. A reasonable level of sensitivity, specificity, and negative predictive value were obtained when the total K-ARS-P scores were ≥90th percentile. The positive predictive value and specificity increased significantly when the total K-ARS-P scores were ≥90th percentile, T scores were ≥60 in the attention problems of K-CBCL, and T scores were ≥63 in the total problems of K-CBCL. CONCLUSION: These results suggested that the K-ARS-P could effectively serve as a primary screening tool to identify elementary school children with ADHD in the community. Also, there might be some increment in the effectiveness of K-ARS-P when combined with K-CBCL-A and K-CBCL-T as a secondary screening tool.

Cyberbullying, problematic internet use, and psychopathologic symptoms among Korean youth.

To evaluate the associations between cyberbullying behaviors and problematic internet use, and to compare psychopathologic symptoms in victims, perpetrators, and victims-perpetrators of cyberbullying to those in youths who were not involved in cyberbullying. A total of 4531 youths (11-14 years of age) were recruited from elementary and middle schools. Among 4531 youths, 9.7% were involved in cyberbullying; 3.3% were only victims; 3.4% were only perpetrators; and 3.0% were victims-perpetrators. Cyberbullying behaviors were associated with problematic internet use as well as various psychopathologic symptoms. Depressive symptoms were associated with cyberbullying victimization, and rule-breaking behaviors and aggressive behaviors have relevance to cyberbullying perpetration. Greater attention needs to be paid to identify youths earlier who are involved in cyberbullying and prevent serious adverse consequences in them.

Open-label, dose-titration tolerability study of atomoxetine hydrochloride in Korean, Chinese, and Taiwanese adults with attention-deficit/hyperactivity disorder.

INTRODUCTION: The primary objective of this study was to assess the overall safety and tolerability of atomoxetine in Korean, Chinese, and Taiwanese adults with attention-deficit/hyperactivity disorder (ADHD). METHODS: A total of 44 patients aged ≥18 years who met the Conners' Adult ADHD Diagnostic Interview for DSM-IV diagnostic criteria for ADHD were enrolled from China, Korea, and Taiwan. In this open-label, dose-escalation study, patients received atomoxetine orally once daily over a period of eight weeks, starting at 40 mg/day (one week) up to a maximum dosage of 120 mg/day. Tolerability was evaluated by rate of discontinuation due to adverse events. Safety was assessed by recording all adverse events, laboratory tests, vital signs, and electrocardiograms. ADHD symptoms were evaluated by the Conners' Adult ADHD Rating Scale-Investigator Rated: Screening Version (CAARS-Inv:SV) for efficacy assessment. RESULTS: Thirty-four patients (77.3%) completed the study. Atomoxetine was well tolerated with a discontinuation rate of 2.3% (1/44) due to adverse events. The most commonly reported adverse events were nausea, dizziness, and somnolence. The mean change from baseline to endpoint in CAARS-Inv:SV total ADHD symptom score was -12.5 (P < 0.001). A significant reduction in the CAARS-Inv:SV subscales (inattentive, hyperactive/impulsive, and ADHD index score, P < 0.001) was observed. DISCUSSION: This is the first atomoxetine clinical trial in adult patients with ADHD in China, Korea, and Taiwan. Atomoxetine was well tolerated in doses of up to 120 mg/day with no unknown safety concerns.

Smoking among individuals with schizophrenia in Korea: gender differences.

OBJECTIVE: This study examined gender differences in smoking and quitting among individuals diagnosed with schizophrenia in Korea. In addition, the study investigated differences in caffeine use by gender and smoking status. METHOD: An anonymous self-report survey was conducted with psychiatric inpatients. RESULTS: Compared to males, females were less likely to be current smokers (P<.001) and more likely to be former smokers (P<.01). Females were also less likely to be daily caffeine users (P<.001). Having more years of education (P<.05) and higher nicotine dependence scores (P<.05) were associated with decreased odds of intending to quit smoking, whereas having more previous quit attempts (P<.01) was associated with increased odds. These findings were significant even after adjusting for gender. Smokers were more likely to be daily caffeine users (P<.001) than their non-smoking counterparts. CONCLUSION: Nurses in Korea should play an active role in tobacco control for patients with schizophrenia by providing cessation counseling and educating the effect of caffeine use on cigarette consumption, while tailoring the service to gender differences found in this study.

Psychological characteristics of early remitters in patients with panic disorder.

We aimed to examine whether anxiety sensitivity and agoraphobic fear could affect the time taken to remission after 24 weeks of open-label escitalopram treatment of patients with panic disorder (PD). We recruited 158 patients, and 101 patients completed the study. Clinical severity and psychological characteristics were assessed at baseline and 4, 12, and 24 weeks after the treatment, using the Clinical Global Impression-Severity (CGI-S), the Hamilton Rating Scales for Anxiety and Depression, the Anxiety Sensitivity Index-Revised (ASI-R), the Albany Panic and Phobia Questionnaire (APPQ), and the Panic Disorder Severity Scale (PDSS). Remission was defined as the absence of full panic attacks and PDSS scores of 7 or less. Completing patients were stratified according to the time taken to remit: early (n=20) and late (n=58) remission and non-remission groups (n=23). There were no significant differences among the three groups at baseline on the CGI-S and the PDSS mean scores. However, early remitters had significantly lower scores than late remitters and non-remitters on the ASI-R and APPQ. In conclusion, anxiety sensitivity and agoraphobic fear can affect the time to remission after pharmacotherapy, and clinicians should consider the psychological characteristics of PD patients in order to achieve an optimal response to pharmacotherapy.

Long-term Escitalopram Treatment in Korean Patients with Panic Disorder: A Prospective, Naturalistic, Open-label, Multicenter Trial.

OBJECTIVE: Panic disorder is characterized by recurrent panic attacks, persistent concerns about additional attacks, and worry about the implications of the attack or significant changes in behavior related to the attacks. We examined the efficacy of 24-week naturalistic, open-label escitalopram treatment in terms of the response and remission rates and functional disability in 119 adult Korean patients with panic disorder from 6 clinical centers in South Korea. METHODS: Clinical severity and functional impairment were assessed at baseline and at 4, 12, and 24 weeks after the treatment using the Panic Disorder Severity Scale and Sheehan Disability Scale. Ninety-six patients (80.7%) showed a treatment response, and 87 patients (73.1%) had attained remission after 24 weeks of escitalopram treatment. RESULTS: Continuous improvement in the Panic Disorder Severity Scale and Sheehan Disability Scale scores was found over the 24 weeks of treatment. CONCLUSION: These findings suggest that escitalopram treatment is very effective for panic disorder in terms of both response and remission rates and that long-term pharmacotherapy with escitalopram continuously improved panic symptoms and functional disability in Korean patients with panic disorder.

Aripiprazole plus divalproex for recently manic or mixed patients with bipolar I disorder: a 6-month, randomized, placebo-controlled, double-blind maintenance trial.

OBJECTIVES: The goal of this study was to investigate the safety and efficacy in preventing relapse of a mood episode in recently manic or mixed episode patients with bipolar I disorder stabilized with aripiprazole and divalproex combination. METHODS: This randomized, 24-week, double-blind, placebo-controlled multicenter study enrolled patients from 23 centers in Korea. Patients with bipolar I disorder who had manic or mixed episode entered a 6-week open-label stabilization phase. After meeting stabilization criteria, 83 patients were randomly assigned to placebo + divalproex or aripiprazole + divalproex treatment group for the 24-week, double-blind maintenance phase. RESULTS: During the 6-month double-blind treatment, the time to relapse of any mood episode in the aripiprazole group was longer than the placebo group, but the difference did not reach statistical significance (p = 0.098). After controlling for mean divalproex level, the time to depressive episode relapse in the aripiprazole group was longer than those in the placebo group (p = 0.029). Weight gain (≥ 7% increase) occurred in 22.5% aripiprazole group and 18.6% placebo group (p = 0.787). CONCLUSIONS: In this study, relapse of mood episode occurred fewer and later for aripiprazole with divalproex treatment than divalproex monotherapy, but the differences were not statistically significant.

Relationship between Personality and Insomnia in Panic Disorder Patients.

OBJECTIVE: Panic disorder (PD) is frequently comorbid with insomnia, which could exacerbate panic symptoms and contribute to PD relapse. Research has suggested that characteristics are implicated in both PD and insomnia. However, there are no reports examining whether temperament and character affect insomnia in PD. Thus, we examined the relationship between insomnia and personality characteristics in PD patients. METHODS: Participants were 101 patients, recruited from 6 university hospitals in Korea, who met the DSM-IV-TR criteria for PD. We assessed sleep outcomes using the sleep items of 17-item Hamilton Depression Rating Scale (HAMD-17)(item 4=onset latency, item 5=middle awakening, and item 6=early awakening) and used the Cloninger's Temperament and Character Inventory-Revised-Short to assess personality characteristics. To examine the relationship between personality and insomnia, we used analysis of variance with age, sex, and severity of depression (total HAMD scores minus sum of the three sleep items) as the covariates. RESULTS: There were no statistical differences (p>0.1) in demographic and clinical data between patients with and without insomnia. Initial insomnia (delayed sleep onset) correlated to a high score on the temperamental dimension of novelty seeking 3 (NS3)(F(1,96)=6.93, p=0.03). There were no statistical differences (p>0.1) in NS3 between patients with and without middle or terminal insomnia. CONCLUSION: The present study suggests that higher NS3 is related to the development of initial insomnia in PD and that temperament and character should be considered when assessing sleep problems in PD patients.