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자살과 알코올 사용장애를 동반한 기분장애와의 연관성 : 공통 데이터 모델을 활용한 연구
조용혁(Yong Hyuk Cho),이은영(Eunyoung Lee),허은실(Eun Sil Her),황규범(Gyubeom Hwang),임기영(Ki-Young Lim),노재성(Jai Sung Noh),신윤미(Yunmi Shin),홍창형(Chang Hyung Hong),노현웅(Hyun Woong Roh),이동윤(Dongyun Lee),이혜림(Heirim Lee) 대한신경정신의학회 2021 신경정신의학 Vol.60 No.3
Objectives This study determines the effects of comorbidity of mood disorder and alcohol use disorder on suicide behavior. Methods We converted data from the electronic medical records of one university hospital into a common data model and utilized it in our analysis. We selected 9551 patients with diagnosis codes of mood disorders or alcohol use disorders and divided them into three groups: mood disorder (MD) only, alcohol use disorder (AUD) only, and comorbidity of mood disorder and alcohol use disorder (MD+AUD). The mood disorder group was also subgrouped with depressive (DD) or bipolar affective disorder (BD) groups, and the comorbidity group was classified in the same way. Then, we applied logistic regression analysis to assess the risk of suicide attempts between the diagnostic groups. Subgroup analysis according to age also was conducted. Results The MD+AUD group had 2.7 (odd ratio [OR]=2.70, 95% confidence intervals [CI]=1.91- 3.81, p<0.0001) and the DD+AUD group had 2.78 (OR=2.78, 95% CI=1.95-3.98, p<0.0001) times higher risk of suicide attempts than the MD only and DD only group, respectively. Furthermore, according to the age subgroup, the risk of suicide attempts was the highest (OR=5.17, 95% CI=2.35-11.40, p<0.0001) in the DD+AUD group for those aged 40-59. There were no significant results in BD. Conclusion The results showed that the comorbidity of mood disorder and alcohol use disorder could increase suicide risk. This study suggested that alcohol use behavior needs to be assessed as well as mood symptoms for suicide prevention.
유동주,허 웅,김근이,이호재,임현수 明知大學校 産業技術硏究所 1992 産業技術硏究所論文集 Vol.11 No.-
In this paper, we implemented a pulse oximeter system which is measured oxygen saturation coefficient of a human blood in vivc We use the Beer-Lambert Law to measure the percentage of hemoglobin is oxygen saturation. The oximeter sensor are consisted of two LED(RED and INFRARED LED) and a single photodiode. The photodiode measures lights which transmitted through the tissue from two light source alternately, We calculated a ratio of light transmittance between two LEDs and then, it applied for the oxygen saturation coefficient calculation to formula. As a result, the oxygen saturation coefficient that measured from normal conditions men was 96.43[%]
經皮電氣刺戟을 위한 强度,周波數,듀티비 效果에 관한 硏究
함광근,허 웅,이호재,민홍기 明知大學校 産業技術硏究所 1992 産業技術硏究所論文集 Vol.11 No.-
In this paper, we have searched for the optimal electro-stimulation condition which for the electrotactile matrix device. The required parameters of electro-stimulus condition for the experiments are waveforms, frequency stimulation intensity, duty ratio. As a result, when we gave a stimulation to finger's skin with monophasic, biphasic and differential phasic waveform, the most appropriate stimulation condition was 200 to 250[Hz] in frequency, 10 to 25[%] in duty ratio. A Burst type pulse was more sensitive than that of the continuous pulse.
이호재,박영배,김진우,허 웅 明知大學校 産業技術硏究所 1992 産業技術硏究所論文集 Vol.11 No.-
This paper describes a design of trasducer for non-invasively detecting pressure radial pulse wave in aterial system and a recording system that for the striding the aterial pulse diagnosis of korean traditional medicine. The mechanism of transducer is composed of sensing mechanism, pressure sensor, conditioning amplifier. The variation of radial pulse pressure in the sensing mechanism is converted to the electric signal by piezo-resistive pressure sensor and it converted to the digital signal after preprocessing via A/D converter. The converted signals inputed to the computer as data files and then it display to the monitor for waveform watching and this datas can be used as the aterial pulse diagnosis data. This system effectively detect non-differential radial pulse wave and we conside that if analizing the recorded radial pulse wave, compared each other, it can be helpful in quantify radial pulse wave diagnosis of the Korean traditionl medicine.