• Health Policy and Management
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• v.23 no.3
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• pp.260-265
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• 2013

Background: The aim of this study was to examine the seasonal variation of death from intentional self-harm by hanging, strangulation and suffocation (HSS: Korean Standard Classification of Diseases-6 code: X70) using the 2011 death registry data. Methods: The analysis was based on data of 8,359 HSS deaths from 2011 national vital statistics in Korea. Daily, weekly, and monthly death pattern on HSS were used to examine the relationship seasonal variation and HSS deaths. Results: A total of 8,359 HSS deaths occurred in 2011, with a mean age of 50.6 years. The HSS death rate (per 100,000) was 25.5 in male and 10.8 in female. In one day 17.6 males and 8.0 females occurred HSS death on average. The number of HSS death per day was the highest on 8th June (45 deaths), and lowest on 1st February (7 deaths) during the period. The variations of daily HSS death showed wide fluctuation from a peak of 34 to 45 deaths (29th May to 9th June) to a trough of 17-26 deaths (10th-13th September: the Korean thank-giving consecutive holidays), 13-20 deaths (2nd-5th February: the new year's day by the lunar calendar) and 8-9 deaths (24th-25th December: Christmas holidays). There were no significant difference between gender and seasonal variation (month, season, and week). Conclusion: The mean number of HSS death per day was highest in June (30.6 deaths), and months with the lowest number of deaths was January and December (range, 19.4 to 19.6 deaths). HSS death were more prevalent during summer and spring and were less likely to occur during winter. On Saturdays (21.0 deaths), the number of HSS death per day was the lowest, and Monday (27.9 deaths) was the highest. HSS death was less likely to occur on holidays (21.4 deaths). There was significant seasonal variation in HSS death by weekly and monthly (p<0.01).

• The Journal of the Korea Contents Association
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• v.13 no.9
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• pp.334-343
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• 2013

This study was conducted to examine the readiness for death and death anxiety among hospitalized cancer patients. A convenience sample of 183 cancer patients admitted to four hospitals in Korea was recruited for this study. Data were collected in 2010. Collected data were analyzed with descriptive statistics, independent t-test, one-way ANOVA, and Pearson's correlation coefficient. The mean scores of readiness for death and death anxiety were 1.99(${\pm}0.69$) and 2.21(${\pm}0.59$) out of 4, respectively. 'Psychological readiness' showed the highest mean score among the death anxiety domains, and 'dying process' had the highest mean score among the death anxiety domains. No statistically significant correlation was found between readiness for death and death anxiety. Readiness for death was statistically significantly different according to age, afterlife beliefs, stage of cancer, duration of disease, and number of symptoms. Death anxiety showed significant difference according to faith in God and afterlife beliefs. Distress in the process of dying needs to be managed for cancer patients and spiritual interventions should be considered to relieve death anxiety.

• Journal of Oriental Neuropsychiatry
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• v.7 no.1
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• pp.137-153
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• 1996

Through the classification of region and kinds of illness about the death of vagrants from 1906 to 1942, the results on the study of vagrants under the rule of Japanese imperialism are followings.1. The statistics about the death of vagrants from 1906 to 1912 have no coherence. So this study excludes that time.2. A mental disease as a cause of death of vagrants is 25.4%. It shows the highest ratio of all the other diseases.3. A mental, nervous disease among the cause of vagrants' death is 15%.4. On outbreak ration of mental disease is 26.7 times in men, 24.6 times in women higher, and on nervous disease 48.1 times in man, 48.9 times in woman higher than Japanese.5. Regional outbreak ratio is higher than Japan. The orders are Chonlabukdo, Chungcheongbukdo, Hwanghaedo, Kangwondo. The above results show that vagrants under the rule of Japanese imperialim is produced by cause of disease. The cause of vagrants' death is also related to social situation at that times. And it accord with the basis of documents. The relation between the death of vagrants and mental, nervous disease are considered to be studied in detailI.

• Journal of Home Health Care Nursing
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• v.28 no.3
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• pp.256-265
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• 2021

Purpose: This study examined the effects of nurses' attitude toward death and their perception of hospice and palliative care on their terminal care stress in long-term care hospitals (LCHs). Methods: Participants included 127 nurses from 6 Incheon LCHs. Data were collected between July and August, 2020. Self-report questionnaires were administered to collect data on their general characteristics, terminal care stress, attitude toward death, and perception of hospice and palliative care. Data analysis included descriptive statistics, independent t-test, one-way ANOVA, Pearson's correlation coefficient, and stepwise multiple linear regression using the SPSS 23.0 statistical program. Results: Nurses' terminal care stress was affected by their attitude toward death (𝛽=.30, p<.001) and perception of hospice and palliative care (𝛽=.28, p=.002) with an explanatory power of 21.6%. Conclusion: Terminal care stress was significantly associated with their attitude toward death and perception of hospice and palliative care. Therefore, educating nurses in LCHs about death and hospice and palliative care is essential to manage their terminal care stress effectively.

• The Korean Journal of Applied Statistics
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• v.20 no.3
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• pp.449-458
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• 2007

Bipolar disorder, also known as manic-depressive illness, is a brain disorder that causes unusual shifts in person's mood, energy, and ability to function. Compared with manic episode, the depression episode causes more serious results such as restless, loss of interest or pleasure, or thoughts of death or suicide and the cure rate of depression episode is lower than that of manic episode. Furthermore, a long term use of antidepressants in bipolar patients may result in manic episode. Our interest is to investigate the effect of antidepressant on switch of moods of bipolar patients and to estimate the transition probabilities of switch between moods, depression and (hypo) manic. In this study, three approaches are applied in terms of multi state model. Parametric model is applied using left censoring data and nonparametric model is implemented under illness-death model with counting process. In order to estimate the effect of covariates, a multiplicative model is used. These all methods have similar results.

• Proceedings of the Korean Statistical Society Conference
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• 2002.11a
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• pp.265-272
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• 2002

An Integer-valued autoregressive integrated (INARI) model is introduced to eliminate stochastic trend and seasonality from time series of count data. This INARI extends the previous integer-valued ARMA model. We show that it is stationary and ergodic to establish asymptotic normality for conditional least squares estimator. Optimal estimating equations are used to reflect categorical and serial correlations arising from panel count data and variations arising from three random processes for obtaining observation into estimation. Under regularity conditions for martingale sequence, we show asymptotic normality for estimators from the estimating equations. Using cancer mortality data provided by the U.S. National Center for Health Statistics (NCHS), we apply our results to estimate the probability of cells classified by 4 causes of death and 6 age groups and to forecast death count of each cell. We also investigate impact of three random processes on estimation.

• Communications for Statistical Applications and Methods
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• v.29 no.1
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• pp.103-125
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• 2022

In this paper, we analyze the time series data of the case and death counts of COVID-19 that broke out in China in December, 2019. The study period is during the lockdown of Wuhan. We exploit functional data analysis methods to analyze the collected time series data. The analysis is divided into three parts. First, the functional principal component analysis is conducted to investigate the modes of variation. Second, we carry out the functional canonical correlation analysis to explore the relationship between confirmed and death cases. Finally, we utilize a clustering method based on the Expectation-Maximization (EM) algorithm to run the cluster analysis on the counts of confirmed cases, where the number of clusters is determined via a cross-validation approach. Besides, we compare the clustering results with some migration data available to the public.

• Journal of the Korean Data and Information Science Society
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• v.16 no.4
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• pp.1017-1026
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• 2005

We consider the problem of modeling count data where the observation period is determined by the survival time of the individual under study. We assume random effects or frailty model to allow for a possible association between the death times and the counts. We assume that, given a random effect, the death times follow a Weibull distribution with a rate that depends on some covariates. For the counts, given the random effect, a Poisson process is assumed with the intensity depending on time and the covariates. A gamma model is assumed for the random effect. Maximum likelihood estimators of the model parameters are obtained. The model is applied to data set of patients with breast cancer who received a bone marrow transplant. A model for the time to death and the number of supportive transfusions a patient received is constructed and consequences of the model are examined.

• Journal of Hospice and Palliative Care
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• v.7 no.1
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• pp.29-36
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• 2004

Purpose: A quantitative descriptive study aimed to identify the relationships between spiritual well-being and perception attitudes of death in nursing students. Methods: A survey was conducted and 175 data were collected. Collected data were computed and analyzed using SPSS10.0 for Win. 1) Descriptive statistics were used to identify demographic data, and 2) both t-test and ANOVA statistics were used to figure out the relationships between spiritual well-being /or perception attitudes of death and demographic data of the participants. 3) Pearson's correlation coefficient was used to identify the relationships between the two main variables. Results: 1) The mean of spiritual well-being score of the participants was $50.9943{\pm}10.7235$. Significant relationships between religion /or doing economic activity and spiritual well-being were found. 2) The mean of perception attitudes of death was $20.4914{\pm}2.6280$. There were significant relationships between gender /or age and perception attitudes of death among participants. 3) A strong positive relationship between spiritual well-being and perception attitudes of death of participants was also found(r=.261, P=.000). Conclusion: The study results shows that spiritual well-being of nursing students as caregivers of terminal patients is important when the perception of death of terminal patients is considered. Previous studies indicate that caregivers' perception attitudes impact on those of terminal patients. Therefore, it is suggested that not only perception attitudes of death and spiritual well-being in terminal patients, but also those of caregivers are importantly required to consider in educational programs in relation to spiritual care of terminal patients.

• 대한예방의학회:학술대회논문집
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• 2001.10a
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• pp.247-249
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• 2001