폐쇄성 수면 무호흡증의 심각도와 심박동 변이율 : 탈경향변동분석

주가원,신철진,박두흠,Ju, Gawon,Shin, Chul-Jin,Park, Doo-Heum 대한생물정신의학회 2009 생물정신의학 Vol.16 No.2

Objectives : The detrended fluctuation analysis is one of the nonlinear methods for the investigation of biological time series. It quantifies the fractal scaling properties and is known to be useful in the evaluation of long-range correlations in time series. The heart rate variability(HRV) of obstructive sleep apnea syndrome (OSAS) patients during nighttime was analyzed by detrended fluctuation analysis to assess its relationship with the severity of the symptoms. Methods : Fifty nine untreated male OSAS patients with moderate to severe symptoms(mean age=45.4${\pm}$11.7 years, apnea-hypopnea index, AHI${\geq}$15) underwent nocturnal polysomnography. Moderate(AHI=15-30, N=22) and severe(AHI>30, N=37) OSAS patients were compared for the indices derived from detrended fluctuation analysis and frequency domain analysis of HRV. Results : In the detrended fluctuation analysis, the alpha values were 0.75${\pm}$0.11 and 0.82${\pm}$0.07 for the severe and the moderate OSAS groups respectively. The difference was significant(p<.01). The alpha value had negative correlation with AHI(r=-.425, p=.001). Negative correlation coefficients were also found in the relationships between the alpha values and very low frequency(VLF)(r=-.425, p=.001), low frequency(LF)(r=-.633, p= <.001) and the LF/HF ratio(r=-.305, p=.019) respectively. LF/HF ratio(p=.005) was higher in the severe OSAS group compared to that of the moderate OSAS group. Conclusion : In this study, the detrended fluctuation analysis showed the significant difference between the two OSAS groups classified according to their severity of symptoms. The scaling exponent showed the negative correlation with AHI and indicies of frequency domain analysis. This result suggests that detrended fluctuation analysis can be helpful to estimate the severity of OSAS.

뇌파의 주파수 특성 및 탈경향변동분석과의 관계

신철진, 주가원 충북대학교 의학연구소 2010 忠北醫大學術誌 Vol.20 No.2

-본문참고-

소방공무원의 직무유형에 따른 불면과 신체화증상과의 관계

윤희수,주가원,이상익,신철진,손정우,김시경,박혜미,이정환 한국정신신체의학회 2020 정신신체의학 Vol.28 No.1

Objectives:Firefighters are always under stress due to their job environment, and they are likely to become psychologically vulnerable due to continuous exposure to traumatic events, which is a stressful situation that requires emergency standby at all times. The aims of this study were to examine mental health factors for each division of firefighters and to see the relationship between sleep and somatization symptoms among them. Methods:General characteristics and related inspections were conducted through self-reporting questionnaires for 1,264 firefighters working at Chungbuk fire stations. Several mental health factors were investigated by the Insomnia Severity Index, Severity of somatic symptoms, Impact of Event Scale, Perceived Stress Scale, Resilience Scale, Alcohol Dependent Screening Scale, and the Center for Epidemiologic Studies Depression Scale Depression Scale and Mini-International Neuropsychiatric Interview. Results:Among the mental health variables, the relationship between insomnia and somatization varies significantly depending on types of work. It was reported that the first aid team was significantly higher than the fire suppression and rescue team. Post-traumatic stress, depression and drinking also differ significantly depending on types of work. The first aid team reported more posttraumatic stress than the fire suppression team and more depressed mood than the rescue team. The administration part had more alcohol consumption than the fire suppression or first aid team. Resilience was significantly higher in the rescue team than the first aid team. No significant differences between the types of work about stress and suicide risks. Insomnia, stress, and post-traumatic stress were significant predictors of somatization among firefighters. Above all, insomnia was significant mental health variable affecting somatization. Conclusions:Various mental health factors were different according to the types of work in firefighters. The First aid team was more vulnerable to mental health variables such as insomnia and somatization than other divisions. Insomnia is the most important cause of somatization in firefighters, so it is recommended that they be treated for insomnia and to prepare institutional policies. 연구목적소방공무원은 직무 환경 상 항상 비상대기를 해야 하는 스트레스 상황에 처해있으며, 지속적인 외상적 사건에의 노출로 인해 불면, 우울을 포함한 다양한 정신질환에 취약 해지기 쉽다. 이에 소방공무원들의 직무 유형별 정신건강요인의 차이 유무를 살펴보고, 특히 그 중에서도 업무의 지장 및 불편을 줄 수 있는 불면과 신체화증상과의 관련성을 보고자 한다. 방 법충청북도 소재 지역 소방서에 근무하는 소방공무원 1264명을 대상으로 자기보고식 설문지를 통하여 일반적특성 및 관련 검사를 수행하였다. 불면증 심각성 척도(ISI), 신체화 증상 척도(PHQ-15), 사건 충격 척도(IESR- K), 스트레스 척도(PSS-10), 회복탄력성 척도(K-CD-RISC-2), 알코올 의존 선별검사 척도(AUDIT-K), 역학연구센터 우울 척도(CES-D) 및 국제 신경정신평가(MINI-plus)의 자살 척도를 활용하여 정신건강상태현황 조사 및 요인 간의 관련성을 평가하였다. 결 과정신건강요인들 중 불면증과 신체화증상의 관련성은 직무 유형에 따라 유의한 차이가 있으며 구급 직군이화재진압 직군과 구조 직군보다 유의하게 높은 것으로 보고되었다. 사건 충격, 우울, 음주도 직무 유형에 따라유의한 차이가 있으며, 사건 충격은 구급 직군이 화재진압 직군보다 높고 우울은 구급 직군이 구조 직군보다높으며 음주는 행정 직군이 화재진압 직군, 구급 직군보다 높은 것으로 보고되었다. 회복탄력성은 구조 직군이구급 직군보다 유의하게 높았다. 스트레스, 자살위험성은 직무 유형에 따라 유의한 차이가 없는 것으로 보고되었다. 또한 소방공무원 신체화증상의 유의한 예측 인자로 불면증, 스트레스, 사건 충격이 있었으며, 특히 불면의 영향이 큼을 보여주었다. 결 론본 연구를 통해 지역 소방공무원들의 직무 유형에 따라 다양한 정신건강 변인에서 유의한 차이가 있음을 확인할 수 있었으며, 특히 구급 직군의 경우가 타 직군에 비해 불면, 신체화 증상, 큰 사건 충격, 취약한 회복탄력성 등 여러 정신건강변인에서 취약한 상황으로 보고되었다. 그 중 불면의 경우 모든 직무유형에서 신체화 증상에의 의미 있는 예측인자임을 확인할 수 있었다.

회복탄력성을 통한 주관적 불면의 심각도와 자살사고와의 관계

정사임,주가원,이상익,신철진,손정우,김시경 한국정신신체의학회 2017 정신신체의학 Vol.25 No.2

Objectives:Insomnia may be one of the risk factor for suicidal ideation, but little is known about the mechanism by which sleep disturbances confer risk for suicide. The aim of this study was to investigate examine whether insomnia severity would be associated with resilience and suicidal ideation, and whether resilience would mediate the relationship between insomnia and suicidal ideation. Methods:A total of 432 community-dwelling adults(227 male, 205 female,) completed the self-report questionnaire that covered basic socio-demographic data. To assess the psychological variables, the following instruments were applied: Insomnia Severity Index(ISI), Korean Version of the Connor-Davidson Resilience Scale(KCD- RISC), Beck Hopelessness Scale(BHOP) and Scale for Suicidal Ideation(SSI-Beck). People with an ISI score of 8 or higher were defined as insomnia. Results:Greater insomnia symptom severity was significantly associated with higher level of suicidal ideation and lower level of resilience, adjusting for hopelessness, age, sex, presence of family members living together, and household income. Additional analysis revealed that disturbance of sleep initiation and disturbance of sleep maintenance were significantly associated with suicidal ideation. Mediation analyses revealed that resilience significantly accounted for the relationship between insomnia symptom severity and suicidal ideation. Conclusions:These findings suggest that the evaluation and control of insomnia and resilience may be needed to reduce the risk of suicide. 연구목적불면은 자살사고의 위험요인으로 알려져 있으나 아직 어떻게 자살의 위험에 영향을 미치는지 그 기전은 명확하지 않다. 이에 불면 증상이 회복탄력성과 자살사고와 상관이 있는 지를 살펴보고, 회복탄력성이 불면증상과 자살사고의 매개요소가 될 수 있을지 알아보고자 한다. 방 법432명의 대학생을 대상으로 자기보고식 설문지를 통하여 일반적 특성 및 관련 검사를 수행하였다. 불면증 심각성 척도, 한국판 코너-데이비드슨 회복탄력성척도, 벡 자살사고 척도 및 벡 무망감 척도를 활용하여 불면증상, 자살사고, 회복탄력성, 무망감에 대해 조사하였으며, 각 요소간의 상관분석 및 경로분석을 수행하였다. 결 과불면증상이 심할수록 회복탄력성이 낮았고, 자살사고가 증가되는 것을 알 수 있었다. 이는 무망감, 연령, 성별, 동거가족, 가정 내 월수입을 통제하여도 유의하였다. 더불어 입면의 어려움과 유지의 어려움을 겪는 불면증상이 자살사고와 연관됨을 확인하였다. 경로분석을 통하여 불면증상이 자살사고에 직접적, 간접적으로 영향을미침을 확인할 수 있었으며, 회복탄력성도 유의하게 자살사고에 영향을 주는 것으로 평가되었다. 이에 회복탄력성이 불면과 자살사고와의 관계에 유의미한 중재자가 됨을 확인하였다. 결 론수면상태와 회복탄력성에 대한 평가 및 개입이 자살사고를 낮추어 자살을 예방하는데 기여할 수 있을 것으로 기대한다.

적극적 자살예방 중재 전략 개발을 위한 자살 의도를 노출한 자살시도자의 위험요인 분석

김지민,이해주,주가원,김상철,전혁진,박관진,인용남,김훈,이석우 대한응급의학회 2019 대한응급의학회지 Vol.30 No.2

Objective: This study examined the clinical characteristics of suicide attempters who exposed their suicidal intension to suggest an active intervention strategy for suicide prevention based on the regional emergency medical service system. Methods: A prospective database of suicide attempters who visited the emergency department of Chungbuk National University Hospital between October 2013 and December 2017 was used. All of the adult patients who provided consent for the initial assessment for suicidal attempters were eligible, excluding cases with unknown exposure of suicidal intension. The primary and secondary endpoints were the risk factors affecting exposure to the suicidal intension and characteristics of the exposure group. The adjusted odds ratios (AORs) of exposure to suicidal attempts after adjusting for potential confounders was calculated. Results: Of a total 1,035 suicidal attempters enrolled, 332 (32.1%) were included in the exposure group. The exposure group was more likely to have an educational level above high school and no religion, and have suicidal characteristics at night time (18:00-08:00), under the influence of alcohol, suicidal plan before 1 week, and suicidal method involving asphyxia (P<0.05). The exposure group was more likely to have no guardian (AORs, 1.46; 95% confidence interval [CI], 1.00-2.12), use methods involving asphyxia (AORs, 2.07; 95% CI, 1.46-2.91), and attempt suicide at night (18:00 to 08:00) (AORs, 1.38; 95% CI, 1.05-1.83) compared to the no exposure group. Conclusion: Models need to be established, where regional mental health welfare center, local government, fire headquarter, and tele-communication companies can participate in the implementation of an active intervention strategy.

The Association of Obesity with Insulin Resistance in Male Patients with Obstructive Sleep Apnea Syndrome in Korea

정석훈,윤인영,주가원 대한신경정신의학회 2011 PSYCHIATRY INVESTIGATION Vol.8 No.3

Objective Obstructive sleep apnea syndrome (OSAS) has been associated with cardiovascular complications and insulin resistance has been implicated in the pathogenesis and progression of atherosclerosis. We investigated whether insulin resistance is associated with OSAS independent of obesity. Methods A total of 183 male patients with OSAS and 52 healthy controls were assessed by nocturnal polysomnography (NPSG). After NPSG, serum concentrations of total cholesterol, low-density lipoprotein (LDL) cholesterol, triglycerides, glucose and insulin were measured. Insulin resistance was determined by calculating the homeostasis model assessment for insulin resistance (HOMA-IR). Results Subjects were divided into normal control, mild-to-moderate OSA group (n=96) and severe OSA group (n=87). There were no significant differences among groups in age, body mass index (BMI), neck circumference or waist circumference. Serum concentrations of total cholesterol, LDL cholesterol, triglycerides, glucose, insulin and HOMA-IR scores of normal controls did not differ from those of the mild-to-moderate or severe OSAS groups. HOMA-IR significantly correlated with anthropometric variables, oxygen desaturation index, triglyceride and LDL cholesterol. Stepwise multiple linear regression analysis showed that waist circumference (β=0.35) and triglycerides (β=0.27) were significant determinants of HOMA-IR (adjusted R2=20%, p<0.01). Conclusion Insulin resistance was related to obesity itself rather than OSAS severity or nocturnal hypoxemia-related variables. In preventing cardiovascular complications in OSAS patients, weight reduction should be considered.

Anxiety and Depression as Predictive Factors for Quality of Life in Patients with Advanced Gastrointestinal Cancer

정정화,권지현,김현경,주가원,김승택,한혜숙 대한종양간호학회 2016 Asian Oncology Nursing Vol.16 No.4

Purpose: The purpose of the present study was to assess factors associated with quality of life (QOL) and to determine whether anxiety and depression are predictive of QOL in patients with advanced gastrointestinal cancer at initial diagnosis and during the treatment process. Methods: One hundred and twenty patients with gastrointestinal cancer requiring palliative chemotherapy were enrolled. Results: At baseline, depression, performance status, and anxiety accounted for 55.0% (p<.001) of the variance in global health status score, depression accounted for 22.0% (p<.001) of the variance in functional scales score, and anxiety accounted for 19.0% (p<.001) of the variance in symptom scales score. At 3 months, depression, pain, and performance status accounted for 72.0% (p<.001) of the variance in global health status score, 76.0% (p<.001) of the variance in functional scales score, and 74.0% (p<.001) of the variance in symptom scales score. Conclusion: Anxiety and depression were significant predictive factors of QOL in patients with advanced gastrointestinal cancer. Depression and performance status were significant predictive factors of QOL at both baseline and 3 months, and anxiety and pain were significant predictive factors of QOL at baseline and 3 months, respectively.

자동화 프로그램을 이용한 아동의 전체두개강내용적 평가

이정환,김지은,임성진,주가원,김시경,손정우,신철진,이상익,김혜리,Lee, Jeonghwan,Kim, Ji-Eun,Im, Sungjin,Ju, Gawon,Kim, Siekyeong,Son, Jung-Woo,Shin, Chul-Jin,Lee, Sang-Ick,Ghim, Hei-Rhee 대한생물정신의학회 2014 생물정신의학 Vol.21 No.3

Objectives Total intracranial volume (TIV) is a major nuisance of neuroimaging research for interindividual differences of brain structure and function. Authors intended to prove the reliability of the atlas scaling factor (ASF) method for TIV estimation in FreeSurfer by comparing it with the results of manual tracing as reference method. Methods The TIVs of 26 normal children and 26 children with attention-deficit hyperactivity disorder (ADHD) were obtained by using FreeSurfer reconstruction and manual tracing with T1-weighted images. Manual tracing performed in every 10th slice of MRI dataset from midline of sagittal plane by one researcher who was blinded from clinical data. Another reseacher performed manual tracing independently for randomly selected 20 dataset to verify interrater reliability. Results The interrater reliability was excellent (intraclass coefficient = 0.91, p < 7.1e-07). There were no significant differences of age and gender distribution between normal and ADHD groups. No significant differences were found between TIVs from ASF method and manual tracing. Strong correlation between TIVs from 2 different methods were shown (r = 0.90, p < 2.2e-16). Conclusions The ASF method for TIV estimation by using FreeSurfer showed good agreement with the reference method. We can use the TIV from ASF method for correction in analysis of structural and functional neuroimaging studies with not only elderly subjects but also children, even with ADHD.

유력 렘수면 행동장애 환자 유병률과 임상 양상-오산시 역학 연구

최영민,윤인영,김기웅,이상돈,주가원,박준혁,Choe, Young-Min,Yoon, In-Young,Kim, Ki-Woong,Lee, Sang-Don,Ju, Ga-Won,Park, Joon-Hyuk 대한수면의학회 2011 수면·정신생리 Vol.18 No.1

목 적: 렘수면 행동장애는 기존 역학 연구에서 큰 관심을 받지 못했다. 본 연구는 유력 렘수면 행동장애의 유병률과 임상 양상에 대해 살펴보고자 하였다. 방 법: 오산시에 거주중인 60세 이상 노인 14,050명 중 1,588명이 임의추출을 통해 표본 집단으로 선정되었고 이들을 대상으로 렘수면 행동장애 선별 설문지로 선별검사를 시행했다. 선별 설문지 점수가 5 이상인 집단은 수면의학 전문가가 직접 개별 면담평가를 시행했다. 결 과: 14,050명의 모집단 중 886명이 1차 선별평가를 마쳤다. 선별검사 설문지 점수가 5 이상인 145명 중 123명이 2차 진단평가를 받았다. 이중 11명이 유력 렘수면 행동장애로 진단되었고 유병률은 1.5%(95% CI=0.70-2.30%)로 나왔다. 우울과 인지기능 저하의 빈도가 유력 렘수면 행동장애 진단군에서 그렇지 않은 군에 비해 유의미하게 증가되었다. 결 론: 유력 렘수면 행동장애는 노년층에서 드물지 않은 질환이지만 이에 대한 인식은 부족한 실정이다. 유력 렘수면 행동장애의 평가와 치료에 대한 관심이 더욱 요구된다. Objectives: REM sleep behavior disorder (RBD) has received little attention in epidemiologic studies. This study aimed to determine the prevalence of probable REM sleep behavior disorder (pRBD) in the elderly population and its clinical features. Methods: A random sample of 1,588 was selected from a roster of 14,050 elderly population living in Osan city. The subjects were asked to fill out the REM sleep behavior disorder screening questionnaire (RBDSQ). Subjects whose score were 5 or higher on RBDSQ underwent a diagnostic phase of person-to-person assessment by experts in RBD. Results: Among 1,588 subjects, 886 elderly subjects participated in the screening phase and 123 subjects were assessed in the diagnostic phase. Eleven subjects were diagnosed as having pRBD, so prevalence was 1.5% (95% CI=0.70-2.30%). The frequency of depression and cognitive decline was significantly increased in patients with pRBD compared to subjects without pRBD, and there was no difference in sleep disturbances between two groups. Conclusions: Probable REM sleep behavior disorder is not rare in the elderly but frequently under-recognized. More attention should be paid to evaluation and treatment of RBD.

알코올 의존 환자에서 삼대립 세로토닌 수송체 유전자 다형성과 생활사건 스트레스가 우울증에 미치는 영향

장현정,이상익,김시경,신철진,손정우,주가원,박재영,지경환,이상구,Jang, Hyun-Chung,Lee, Sang-Ick,Kim, Sie-Kyeong,Shin, Chul-Jin,Son, Jung-Woo,Ju, Ga-Won,Park, Jae-Young,Jee, Kyung-Hwan,Lee, Sang-Gu 대한생물정신의학회 2012 생물정신의학 Vol.19 No.2

Objectives : The purpose of this study is to investigate the relationship between the triallelic serotonin transporter gene and stressful life events to determine their effect on depression with alcohol dependence. Methods : Ninety-five hospitalized patients with alcohol dependence (73 male, 22 female) were enrolled in this study. Thirty-two (33.7%) of the total patients were diagnosed with major depressive disorder and dysthymic disorder by Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders-IV. The characteristics of stress were evaluated using the stressful life events scale, and depressive symptoms were assessed using the depression scale (Beck Depression Inventory, BDI). Alcoholism with depression (n = 32) and alcoholism without depression (n = 63) were genotyped for the triallelic serotonin transporter gene ($L_A$ : higher expressing allele, $L_G$/S : lower expressing allele). Results : There was no significant difference in the allele frequency between the depression group and the non-depression group (${\chi}^2$ = 0.345, p = 0.619). $L_G$/S alleles had more comorbid depression in the higher score of stressful life events scale [Mental-Haenszel (MH)-${\chi}^2$ = 4.477, p = 0.034]. But there was no significant difference in the comorbidity according to the scores from the stressful life event scale in the $L_A$ alleles (MH-${\chi}^2$ = 0.741, p = 0.399). In the results, alcohol-dependent individuals with $L_G$/S alleles had more comorbid depression than those with $L_A$ alleles when they had experienced severe stressful life events (MH-odds ratio = 2.699, p = 0.028). Conclusions : These results suggest that there is no direct relationship between triallelic serotonin transporter gene and depression in the alcohol dependent patients. But alcohol dependent individuals with the lower expressing alleles of the serotonin transporter gene were more susceptible to depression than those with the higher expressing alleles in response to stressful life events.