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J Korean Soc Emerg Med > Volume 32(1); 2021 > Article
Journal of The Korean Society of Emergency Medicine 2021;32(1): 27-35.
응급실 일산화탄소 중독 환자 추이 분석: 국가응급의료정보체계
이순형1 , 이지숙2 , 김경환1 , 박준석1 , 신동운1 , 김현종1 , 박준민1 , 김훈1 , 전우찬1 , 김정언1
1인제대학교 일산백병원 응급의학과
2아주대학교 의과대학 응급의학교실
Trends of carbon monoxide poisoning patients in emergency department: NEDIS (National Emergency Department Information System)
Soonhyung Lee1 , Jisook Lee2 , Kyung Hwan Kim1 , Junseok Park1 , Dong Wun Shin1 , Hyunjong Kim1 , Joon Min Park1 , Hoon Kim1 , Woochan Jeon1 , Jungeon Kim1
1Department of Emergency Medicine, Inje University Ilsan Paik Hospital, Goyang, Korea
2Department of Emergency Medicine, Ajou University School of Medicine, Suwon, Korea
Correspondence  Woochan Jeon ,Tel: 031-910-9779, Fax: 031-910-7188, Email: woowoochan@gmail.com,
Received: July 7, 2020; Revised: August 13, 2020   Accepted: August 27, 2020.  Published online: February 26, 2021.
We aimed to investigate the epidemiological characteristics and trends of carbon monoxide (CO) poisoning in the National Emergency Department Information System (NEDIS).
Using the NEDIS data from 2014 to 2018, we included patients who had visited the emergency department (ED) with CO poisoning (T58.0 in 7th Korean Standard Classification of Diseases [KCD-7]). We excluded patients with an uncertain time of onset, uncertain intentionality of poisoning, mental state, and unknown clinical outcome. We surveyed age, sex, time of onset, the intentionality of poisoning, mental state, results of emergency treatment, the proportion of admissions to intensive care units (ICU), the outcome of hospitalization, and the regional distribution. We analyzed the rate of incidence and trends of CO poisoning in patients using time series analysis.
A total of 18,533 patients, including 10,671 (57.6%) males and 7,862 (42.4%) females, with a mean age of 40.38±18.41 years, were included in this study. Gyeonggi Province (n=6,354, 34.3%) had the highest distribution of patients, followed by Seoul (n=3,357, 18.1%). The incidence of unintentional CO poisoning was more frequent in January and December, and less frequent in August and September. However, the incidence of intentional CO poisoning showed no seasonal variation. The severity, ICU hospitalization rate, and mortality rate for intentional CO poisoning were higher than unintentional CO poisoning (4.1% vs. 0.8%, 29.9% vs. 16.7%, and 2.0% vs. 0.8% respectively) (P<0.001). Applying Winter’s additive method, we could predict that the rate of unintentional CO poisoning would continue to increase and the seasonal fluctuation, such as cases increasing in January-December and decreasing in August-September, would also increase.
Intentional CO poisoning showed higher severity than unintentional CO poisoning. In the time series analysis, the rate of unintentional CO poisoning and seasonal fluctuation is predicted to increase.
Key words: Carbon monoxide poisoning; Intention; Trends
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