• Journal of Preventive Medicine and Public Health
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• 제40권1호
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• pp.7-15
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• 2007

Objectives : This study investigated the relationship of occupational class and educational background with proportional mortality ratios in Korea. Methods : Mortality was investigated using the entire registered death data from 1993 to 2004, obtained from the Korean National Statistics Office. Proportional mortality ratios (PMRs) for specific diseases were calculated according to the occupational class and educational background of men aged 20-64. Results : Manual workers were found to have higher PMRs for liver disease and traffic accidents, as did the lower educated group. Especially, this study showed trends of an increasing of the wide gap between lower and higher socioeconomic stati for liver disease, traffic accidents, diabetes mellitus and cerebral vascular disease. The mortality for cerebrovascular disease, diabetes mellitus, heart disease, traffic accident and liver disease showed increasing trends according to the calendar year for the lower than the higher social class. Conclusions : The specific conditions that had higher PMRs in the Korean lower social class were liver disease and traffic accidents. Especially, there was an increasing trend for a widening of the gap between manual and non-manual groups in relation to mortality from liver disease, diabetes mellitus and traffic accidents.

• Journal of Chest Surgery
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• 제30권1호
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• pp.17-26
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• 1997

경상대학교병원 흉부외과에서는 1988년 10월부터 1995년 12월까지 7년 2개월 동안 366례의 선천성 심장기형에 대한 수술을 시행하였다. 남자가 171례, 여자가 195례이었고, 생후 5일부터 64세에까지 분포하였으며 성인(만 15세 이상)이 80례이었다. 비청색증형이 313례(84.2%)이었으며 청색증이 53례(15.8%)이었다 전체 사망율은 10.4%이었는데, 6개월 미만 5)례 중 37%, 6개월과 1년 사이가48례 중 10.6%를 나타내어 12개월 미만 영아 사망율은 24.8%(25/101)이었으며, 50세 이상의 노년 환자 13례에서는 사망이 없었다. 비청색증군은 5.5%, 청색증군은 36.2%의 수술사망이 있었다. 수술사망율에 영향을 미치는 몇 가지 위험 인자들을 통계 분석하였다. 단변수 분석상 개심술의 사망율과 관계가 있는 위험 인자는 연령(p< 0.0001), 체중(p<0.0001), 체외순환시간(p< 0.0001) 및 심근허혈시간(p<0.0001), 완전순환정 지법의 이용 (P<0.0001)그리고 청색증질환(p<0.00이)이었다. 그러나, 다변량 분석상 개심술의 사망율과 관련이 있는 위험인자는 질환의 유형(p=0.002)이었고, 특히 활로4징증 이외의 청색증군이 사망율과 관련이 컸다 (odds ratio=15.3). 청색증군만\ulcorner 분석한 결과, 사망율의 위험인자로 단변수 분석상에서는 연령(p=0. 002)과 질환의 유형(p=0.008)이었으나, 다변량 분석에서는 질환의 유형(p=0.012) 뿐이었다. 저자들의 경험례 중 청색증군에서 사망율이 높았던 것은 질병자체의 영향임을 알 수 있었고,단변수 분석상 나타난 위험인자들 중 기술적 개선이 가능한 요인들에 대해서는 특별한 노력이 있어야 될 것으로 판단되는 것이다.

• Tuberculosis and Respiratory Diseases
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• 제73권1호
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• pp.38-47
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• 2012

Background: The prevalence rate of pulmonary tuberculosis (PTB) is steadily decreasing in South Korea. However, PTB is a disease with relatively high mortality and morbidity rates throughout Korea. Although there are many studies and statistics about the risk factors of PTB mortality in many countries, there are only a limited number of domestic papers on this topic. The aim of this study is to determine predictive factors for mortality among in-hospital patients associated with PTB. Methods: From December 2006 to January 2011, we reviewed medical records of 2,122 adult patients diagnosed with tuberculosis at a single tertiary hospital in a suburban area. In this study period, 960 patients were diagnosed with PTB by positive Acid fast bacilli smear and/or mycobacterial culture of the respiratory specimen. We compared the groups of patients deceased and patients discharged alive with PTB. The number of dead patients was 82 (47 males, 35 females). Results: Mortality was significantly associated with increased values of white blood cells (WBC), blood urine nitrogen (BUN), creatinine, C-reactive protein (CRP), numbers of involved lung field, and length of hospitalization. Also, it was associated with the decreased values of hemoglobin, lymphocyte, sodium, albumin, and cholesterol. Furthermore, admission through the emergency department, initial intensive care unit admission, and drug resistant PTB affected mortality in PTB patients. Independent predictors associated with PTB mortality are BUN, initial intensive care unit care, and admission during treatment of tuberculosis. Conclusion: In our study, mortality of pulmonary tuberculosis was related with parameters associated with nutritional status, disease severity at the time of admission, and drug resistance.

• 한국인구학
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• 제11권1호
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• pp.197-203
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• 1988

한국 사망력의 수준 및 특징을 일본과 비교하고자 양국의 1995년 공식통계를 사용하여 사망원인별로 성$\cdot$연령$\cdot$혼인상태별 사망률, 연령표준화사망률, 생존기간손실년수(PYLL) 및 동 측정치의 남녀간 비와 한일간 비를 계산하였다. 사망원인 항목은 모든 사인(총사망), 결핵, 악성신생물, 당뇨병, 고혈압성 질환, 심장 질환, 뇌혈관 질환, 간 진환, 교통사고, 자살을 포함한다. 일본과 비교하여 한국 사망력의 두드러진 특징은 다음과 같다 : (1)자살을 제외한 대부분의 사인에서 한국의 사망률이 일본보다 높은데 , 특히 결핵, 고혈압성 질환, 간 질환 및 교통사고의 경우 한국 생산활동연령층의 사망률이 두드러지게 높다 : (2)결핵, 간질환, 교통사고, 암사망이 한국의 소아에게서도 발생한다 : (3)한국의 생산활동연령층에서 간 질환, 결핵, 교통사고에 의한 성별 사망력 격차가 큰데, 남성의 사망률이 여성의 사망률보다 높기 때문이다 : (4)자살률이 한국생산활동연령층 남성의 경우 일본보다 낮고, 10대와 20대 여성의 자살률은 일본보다 높다 : (5)한국의 45세 미만에서는 사인에 따라 사별이나 이혼상태에서, 45세 이상에서는 모든 사인에 대해 남녀 모두 미혼상태에서 사망력이 가장 높다. : (6)한국은 사별상태에서, 일본은 이혼상태에서 성별 사망력 격차가 가장 크다.

• Journal of Korean Neurosurgical Society
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• 제66권3호
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• pp.316-323
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• 2023

Objective : Owing to advances in critical care treatment, the overall survival rate of preterm infants born at a gestational age (GA) <32 weeks has consistently improved. However, the incidence of severe intraventricular hemorrhage (IVH) has persisted, and there are few reports on in-hospital morbidity and mortality. Therefore, the aim of the present study was to investigate trends surrounding in-hospital morbidity and mortality of preterm infants with severe IVH over a 14-year period. Methods : This single-center retrospective study included 620 infants born at a GA <32 weeks, admitted between January 2007 and December 2020. After applying exclusion criteria, 596 patients were included in this study. Infants were grouped based on the most severe IVH grade documented on brain ultrasonography during their admission, with grades 3 and 4 defined as severe. We compared in-hospital mortality and clinical outcomes of preterm infants with severe IVH for two time periods : 2007-2013 (phase I) and 2014-2020 (phase II). Baseline characteristics of infants who died and survived during hospitalization were analyzed. Results : A total of 54 infants (9.0%) were diagnosed with severe IVH over a 14-year period; overall in-hospital mortality rate was 29.6%. Late in-hospital mortality rate (>7 days after birth) for infants with severe IVH significantly improved over time, decreasing from 39.1% in phase I to 14.3% in phase II (p=0.043). A history of hypotension treated with vasoactive medication within 1 week after birth (adjusted odds ratio, 7.39; p=0.025) was found to be an independent risk factor for mortality. When comparing major morbidities of surviving infants, those in phase II were significantly more likely to have undergone surgery for necrotizing enterocolitis (NEC) (29.2% vs. 0.0%; p=0.027). Additionally, rates of late-onset sepsis (45.8% vs. 14.3%; p=0.049) and central nervous system infection (25.0% vs. 0.0%; p=0.049) were significantly higher in phase II survivors than in phase I survivors. Conclusion : In-hospital mortality in preterm infants with severe IVH decreased over the last decade, whereas major neonatal morbidities increased, particularly surgical NEC and sepsis. This study suggests the importance of multidisciplinary specialized medical and surgical neonatal intensive care in preterm infants with severe IVH.

• Korean Circulation Journal
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• 제53권12호
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• pp.813-825
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• 2023

Background and Objectives: The prognostic implications of septic cardiomyopathy have not been clearly demonstrated. We evaluated serial changes in left ventricular (LV) and right ventricular (RV) function in patients with septic shock and their prognostic value on 7-day and in-hospital mortality. Methods: Transthoracic echocardiography was performed within 48 hours of the diagnosis of septic shock and 7 days after the initial evaluation. In addition to traditional echocardiographic parameters, LV and RV function was evaluated using global longitudinal strain (GLS), and tricuspid annular plane systolic excursion (TAPSE). Results: A total of 162 patients (men, 83, 51.5%; 70.7±13.4 years; Acute Physiology and Chronic Health Evaluation [APACHE] II, 30.6±9.2) were enrolled. Initial GLS and TAPSE were -14.9±5.2% and 16.9±5.5 mm, and improved in the follow-up evaluation (GLS, -17.6±4.9%; TAPSE, 19.2±5.4 mm). Seven-day and in-hospital mortality were 24 (14.9%) and 64 (39.8%). Seven-day mortality was significantly associated with initial GLS >-16% (odds ratio [OR], 14.066, 95% confidence interval [CI], 1.178-167.969, p=0.037) and APACHE II score (OR, 1.196, 95% CI, 1.047-1.365, p=0.008). The in-hospital mortality of 7-day survivors was associated with follow-up TAPSE <16 mm (OR, 10.109, 95% CI, 1.640-62.322, p=0.013) and Sequential Organ Failure Assessment score (OR, 1.340, 95% CI, 1.078-1.667, p=0.008). GLS was not associated with in-hospital mortality of 7-day survivors. Conclusions: Fluctuation of both ventricular function was common in septic shock. Seven-day mortality of patients with septic shock was related to GLS, whereas in-hospital mortality of 7-day survivors was related to TAPSE, not to GLS.

• Asian-Australasian Journal of Animal Sciences
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• 제17권10호
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• pp.1465-1471
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• 2004

A trial was conducted to determine the effect of abrasive strips and abrasive paint in layer cages on claw length and claw sharpness, foot condition, feather cover and mortality of hens. During the preparation of the cages for the experiment it was simpler and took less time to apply the pre-prepared paint with a spatula to the egg guard compared to sticking the abrasive strips onto the egg guard. Fitting the strips took longer because it had to be cut from a 25 mm roll, cut into the appropriate lengths, the tape backing removed and then stuck onto the egg guard section. Abrasive paint was more effective as a claw shortener than abrasive strips. The birds using the abrasive paint had the shortest (p<0.05) claw length and lowest (p<0.05) claw sharpness. One of the original reasons for reducing claw length with claw shorteners was to reduce mortality by minimising skin skin abrasions caused by the claws. Surprisingly hen mortality from prolapse and cannibalism was higher (p<0.05) in cages fitted with abrasives. There are no other reports in the literature showing an increase in prolapse and cannibalism from hens using abrasives.

• Asian-Australasian Journal of Animal Sciences
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• 제5권3호
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• pp.541-544
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• 1992

Duck eggs from Indigenous (desi), Khaki Campbell and Crossbred (Indian Runner $\times$ Khaki Campbell, $F_1$) were incubated to investigate fertility, hatchability and other related traits. The fertility was highest in crossbred followed by Khaki Campbell and Indigenous ducks respectively. The embryonic mortality was highest in Khaki Campbell followed by Indigenous and crossbred respectively. The embryonic mortality was higher in eggs of 7 days pre-incubation holding period and lower in eggs of 3 days pre-incubation holding period. A significant positive correlation was found between temperature and embryonic mortality as well as relative humidity and embryonic mortality. The hatchability on fertile eggs was highest in crossbred ducks and almost similar in both Khaki Campbell and Indigenous ducks. The hatchability was higher in eggs stored for 3 days in comparison with that of 7 days pre-incubation holding period. A negative correlation was found between temperature and hatchability as well as humidity and hatchability. The normal ducklings hatched out from the eggs of Khaki Campbell ducks was highest followed by Indigenous and crossbred respectively. There was a negative correlation between temperature and normal ducklings hatched as well as relative humidity and normal ducklings hatched. The preincubation holding temperature and relative humidity had positive correlation with dead-in-shell.

• 대한영양사협회학술지
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• 제5권1호
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• pp.48-53
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• 1999

This study was prospectively conducted to investigate any relationship of nutritional status at the time of admission to length of hospital stay and mortality. All patients admitted to the Asan Medical Center between October 13 and November 12, 1997 who met the study criteria were included in the study. Patients were classified as Not-at-risk, At-risk Ⅰ or At-risk Ⅱ based on the levels of serum albumin and total lymphocyte count in a computerized nutrition screening program. Sixty three percent of the patients were classified as Not-at-risk Group, 29% as At-risk Group Ⅰ and 8% as At-risk Group Ⅱ. Significant correlation was observed between nutritional status and LOS (P＜0.01) as well as mortality rate (P＜0.05). The more the patient had the nutritional risk factors, the longer the LOS and the higher the mortality rate were. Further studies have to be done in order to demonstrate cost-effectiveness of medical therapy for the malnourished hospitalized patients.

• 한국환경보건학회지
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• 제36권1호
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• pp.20-26
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• 2010

Temperature change has been shown to affect daily mortality even though different analytical methods produce different results. The effect of air pollution on the relationship between the temperature and the mortality is not large, although differences exist between temperature models. The aim of this study was to examine how the temperature change affected the daily mortality in Seoul by comparing the results from the temperature model using two study periods: one from 1994 to 2007 and the other from 1997 to 2007. Generally mean temperature, minimum temperature and Q10 temperature was derived as an optimal model, even though there are differences between age and cause of death. The analysis of threshold using total mortalities in all ages from 1994 to 2007 and from 1997 to 2007 showed that the number of the deaths increased 7.02% (95% CI: 6.06~7.98) and 2.51% (95% CI: 1.83~3.19), respectively as the mean temperature increased $1^{\circ}C$ from a threshold temperature of $27.5^{\circ}C$ and $25.7^{\circ}C$ respectively. These results indicated that the temperature has less effect on the number of death than does an extreme heat wave period.