Cause-of-death statistics in 2020 in the Republic of Korea

Background@#This study analyzed the causes of death in the Korean population in 2020. @*Methods@#Cause-of-death data for 2020 from Statistics Korea were examined based on the Korean Standard Classification of Diseases and Causes of Death, 7th revision and the International Statistical Classification of Diseases and Related Health Problems, 10th revision. @*Results@#In total, 304,948 deaths occurred, reflecting an increase of 9,838 (3.3%) from 2019. The crude death rate (the number of deaths per 100,000 people) was 593.9, corresponding to an increase of 19.0 (3.3%) from 2019. The 10 leading causes of death, in descending order, were malignant neoplasms, heart diseases, pneumonia, cerebrovascular diseases, intentional self-harm, diabetes mellitus, Alzheimer disease, liver diseases, hypertensive diseases, and sepsis. Cancer accounted for 27.0% of deaths. Within the category of malignant neoplasms, the top 5 leading organs of involvement were the lung, liver, colon, stomach, and pancreas. Sepsis was included in the 10 leading causes of death for the first time. Mortality due to pneumonia decreased to 43.3 (per 100,000 people) from 45.1 in 2019. The number of deaths due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was 950, of which 54.5% were in people aged 80 or older. @*Conclusion@#These changes reflect the continuing increase in deaths due to diseases of old age, including sepsis. The decrease in deaths due to pneumonia may have been due to protective measures against SARS-CoV-2. With the concomitant decrease in fertility, 2020 became the first year in which Korea’s natural total population decreased.

Comparison of the number of live births, maternal age at childbirth, and weight of live births between Korean women and immigrant women in 2018

Purpose@#This study compared maternal age at childbirth, the number of live births, and the weight of live births between Korean women and immigrant women using statistical data from the Republic of Korea for 2018. @*Methods@#The analysis was conducted using data from the Microdata Integrated Service of Statistics Korea (https://mdis.kostat.go.kr/index.do). @*Results@#Korean women and immigrant women showed a higher age at childbirth in 2018 than in 2008. The percentage of newborns of Korean women with a birth weight of less than 2.5 kg increased slightly for 3 consecutive years from 2016 to 2018, whereas for immigrant women, this percentage increased in 2017 compared to 2016 and then decreased again in 2018. Very low birth weight (less than 1.5 kg) became more common among immigrant women from 2016 to 2018. Birth at a gestational age of fewer than 37 weeks increased both among Korean and immigrant women from 2016 to 2018. In both groups, the percentage of women who had their first child within their first 2 years of marriage decreased from 2008 to 2018. @*Conclusion@#Immigrant women had higher birth rates than Korean women, while both groups showed an increasing trend in premature birth. Greater attention should be paid to the pregnancy and birth needs of immigrant women, and steps are needed to ensure health equity and access in order to prevent premature births. It is also necessary to identify factors that affect preterm birth and birth of very low birth weight infants among immigrant women in the future.

Comparison of the number of live births, maternal age at childbirth, and weight of live births between Korean women and immigrant women in 2018

Purpose@#This study compared maternal age at childbirth, the number of live births, and the weight of live births between Korean women and immigrant women using statistical data from the Republic of Korea for 2018. @*Methods@#The analysis was conducted using data from the Microdata Integrated Service of Statistics Korea (https://mdis.kostat.go.kr/index.do). @*Results@#Korean women and immigrant women showed a higher age at childbirth in 2018 than in 2008. The percentage of newborns of Korean women with a birth weight of less than 2.5 kg increased slightly for 3 consecutive years from 2016 to 2018, whereas for immigrant women, this percentage increased in 2017 compared to 2016 and then decreased again in 2018. Very low birth weight (less than 1.5 kg) became more common among immigrant women from 2016 to 2018. Birth at a gestational age of fewer than 37 weeks increased both among Korean and immigrant women from 2016 to 2018. In both groups, the percentage of women who had their first child within their first 2 years of marriage decreased from 2008 to 2018. @*Conclusion@#Immigrant women had higher birth rates than Korean women, while both groups showed an increasing trend in premature birth. Greater attention should be paid to the pregnancy and birth needs of immigrant women, and steps are needed to ensure health equity and access in order to prevent premature births. It is also necessary to identify factors that affect preterm birth and birth of very low birth weight infants among immigrant women in the future.

Maternal, infant, and perinatal mortality statistics and trends in Korea between 2009 and 2017

Objective@#To provide updates on maternal, infant, and perinatal mortality using the national population data of South Korea between 2009 and 2017 and describe the mortality rate by target groups, timing, or causes of events to provide a basis for detecting vulnerable populations and ensuring timely medical and political interventions. @*Methods@#Pregnancy-related mortality in women, as well as deaths of infants, in South Korea was identified using population data from Statistics Korea. Records from death certificates, cremation reports on infant and fetal deaths, and the complementary cause-of-death investigation system were reviewed for the 2009–2017 period. @*Results@#A total of 461 maternal deaths, 11,717 infant deaths, and 12,249 perinatal deaths, including fetal deaths over 28 gestational weeks, were identified from 3,945,159 live births between 2009 and 2017. The maternal mortality ratio was 13.5 deaths per 100,000 live births in 2009 and decreased to 7.8 in 2017. Only the rate of deaths related to hypertensive disorders showed an increasing tendency. Both the infant and perinatal mortality rates improved (from 3.2 deaths per 1,000 live births in 2009 to 2.8 in 2017 and from 3.5 to 2.7, respectively). Among the external causes of infant mortality, assaults including homicides accounted for 25% (n=150), and this proportion was constant throughout the study period. @*Conclusion@#Overall improvements were observed in all maternal, infant, and perinatal mortality measures. In-depth analysis and interventions with respect to certain causes, such as hypertensive disorders in mothers or assaults in infants, should be considered priority issues.

Maternal, infant, and perinatal mortality statistics and trends in Korea between 2009 and 2017

Objective@#To provide updates on maternal, infant, and perinatal mortality using the national population data of South Korea between 2009 and 2017 and describe the mortality rate by target groups, timing, or causes of events to provide a basis for detecting vulnerable populations and ensuring timely medical and political interventions. @*Methods@#Pregnancy-related mortality in women, as well as deaths of infants, in South Korea was identified using population data from Statistics Korea. Records from death certificates, cremation reports on infant and fetal deaths, and the complementary cause-of-death investigation system were reviewed for the 2009–2017 period. @*Results@#A total of 461 maternal deaths, 11,717 infant deaths, and 12,249 perinatal deaths, including fetal deaths over 28 gestational weeks, were identified from 3,945,159 live births between 2009 and 2017. The maternal mortality ratio was 13.5 deaths per 100,000 live births in 2009 and decreased to 7.8 in 2017. Only the rate of deaths related to hypertensive disorders showed an increasing tendency. Both the infant and perinatal mortality rates improved (from 3.2 deaths per 1,000 live births in 2009 to 2.8 in 2017 and from 3.5 to 2.7, respectively). Among the external causes of infant mortality, assaults including homicides accounted for 25% (n=150), and this proportion was constant throughout the study period. @*Conclusion@#Overall improvements were observed in all maternal, infant, and perinatal mortality measures. In-depth analysis and interventions with respect to certain causes, such as hypertensive disorders in mothers or assaults in infants, should be considered priority issues.

Child injury death statistics from 2006 to 2016 in the Republic of Korea

This study aimed to analyze changing trends in child injury deaths from 2006 to 2016 and to provide basic data for initiatives to help prevent child injury deaths through improvements in social systems and education. Specific causes of death were analyzed using micro-data of the death statistics of Korea from 2006 to 2016, which were made available by Statistics Korea. Types and place of death were classified according to the KCD-7 (Korean Standard Classification of Diseases and Causes of Death). The data were compared to those of other Organization for Economic Cooperation and Development countries. Changing trends were presented. The number of child deaths by injury was 270 in 2016. The death rate was 8.1 per 100,000 population in 2006, while it was 3.9 in 2016. The death rate of boys was 1.7 times greater than that of girls. Unintentional injury deaths comprised 72.6% of all child injury deaths in 2016, while intentional injury deaths comprised 27.4%. The first leading cause of unintentional injury deaths in infants (less than 1-year-old) was suffocation, while that of children aged 1 to 14 years was transport accidents. The second leading cause of death in infants was transport accidents, that of children aged 1 to 4 was falling, and that of children aged 5 to 14 was drowning. Pedestrian accidents comprised 43.7% of the transport accidents from 2014 to 2016. To prevent child injury deaths by both unintentional and intentional causes, nation-wide policy measures and more specific interventions according to cause are required.

How to write a death certificate: from a statistical point of view

Although the enclosed rate of death certificates has steadily improved when domestic death notification to the government, the percent of well-certified causes of death is still 29th among the 35 Organization for Economic Cooperation and Development countries. The death certificate is a medical diagnosis how the deceased died, however, it is difficult to identify the causes of death such as cardiopulmonary arrest, unknown, and death due to old age were up to about 11%. The Statistics Korea selects the final cause of death by linking administrative records such as national health insurance records and national cancer registry data. The World Health Organization's the international statistical classification of diseases and related health problems, 10th revision, volume 2 manual, provides standard forms of death certificate and guidelines for how to write death certificates. It is necessary to provide the education materials or programs to the clinical doctors such as how differentiate the concepts of the underlying cause of death which is the basis of the death cause statistics, originating antecedent cause, main condition and the direct diagnosis of the death. Statistics on the causes of death are continuously needed to improve for the people's perception of death and to upgrade the quality of health care research and policy development.

Cause-of-death statistics in 2016 in the Republic of Korea

This study aimed to analyze changes in the causes of death in the Korean population in 2016 and to provide some insights regarding how to cope with related issues of public health and welfare. The causes of death made available by Statistics Korea were classified according to the International Statistical Classification of Diseases and Related Health Problems, 10th revision as well as the KCD-7 (Korean Standard Classification of Diseases and Causes of Death), which has been modified to fit circumstances in Korea. The total number of deaths was 280,827, which was an increase of 4,932 (1.8%) from 2015. The crude death rate was 549.4 per 100,000 population, which was an increase of 7.9 (1.5%) from 2015. The 10 leading causes of death, in order, were malignant neoplasms, heart diseases, cerebrovascular diseases, pneumonia, intentional self-harm, diabetes mellitus, chronic lower respiratory diseases, liver diseases, hypertensive diseases, and transport accidents. The rank of hypertensive diseases rose from 10th in 2015 to 9th in 2016, while that of transfer accidents dropped from 9th in 2015 to 10th in 2016. The proportion of the number of deaths caused by cancer was 27.8%. The death rate due to cancer was 153.0 per 100,000 population, which was an increase of 1.4% from 2015; 16.5 deaths per 100,000 population were due to colon cancer, and 16.2 were due to stomach cancer. The above trends in causes of death reflect aspects of the population structure, disease patterns, lifestyle, and medical care in present-day Korean society.

How to write a death certificate: from a statistical point of view

Although the enclosed rate of death certificates has steadily improved when domestic death notification to the government, the percent of well-certified causes of death is still 29th among the 35 Organization for Economic Cooperation and Development countries. The death certificate is a medical diagnosis how the deceased died, however, it is difficult to identify the causes of death such as cardiopulmonary arrest, unknown, and death due to old age were up to about 11%. The Statistics Korea selects the final cause of death by linking administrative records such as national health insurance records and national cancer registry data. The World Health Organization's the international statistical classification of diseases and related health problems, 10th revision, volume 2 manual, provides standard forms of death certificate and guidelines for how to write death certificates. It is necessary to provide the education materials or programs to the clinical doctors such as how differentiate the concepts of the underlying cause of death which is the basis of the death cause statistics, originating antecedent cause, main condition and the direct diagnosis of the death. Statistics on the causes of death are continuously needed to improve for the people's perception of death and to upgrade the quality of health care research and policy development.

Infant, maternal, and perinatal mortality statistics in the Republic of Korea, 2014

This study aimed to analyze infant, maternal, perinatal, and fetal mortality statistics in the Republic of Korea (Korea), 2014. It was based on the open-access data available from the Statistics Korea website (http://kostat.go.kr/portal/eng/index.action). Recent trends in these vital statistics were also examined. The results of this study constitute a descriptive presentation and analysis of the national data. The number of infant deaths was 1,305 out of 435,435 live births in 2014, and the infant mortality rate was 3.0. The number of maternal deaths was 48. The maternal mortality ratio per 100,000 live births was 11.0. The maternal mortality ratio per 100,000 women of child-bearing age (15 to 49 years old) was 0.37. The number of perinatal deaths was 1,365, and the perinatal mortality rate was 3.1. The number of fetal deaths was 5,317. The fetal mortality rate was 12.1. The trends in those vital statistics in recent years were consistent except for a few findings, including a decrease in the maternal mortality ratio of pregnant women 40 years old and older and a change in the proportions of the causes of infant death, with a decrease in mortality due to neonatal respiratory distress and an increase in mortality due to bacterial sepsis. Although these vital statistics were generally consistent, some aspects varied by year. Pregnant women less than 20 years old should be monitored more intensively for their babies' health. Our findings can serve as basic data supporting the establishment of health policies by the Korean government.

Cause-of-death statistics in the Republic of Korea, 2014

This article presents recent trends and statistical indicators related to mortality in the Republic of Korea by analyzing the 2014 cause-of-death statistics. Specifically, we assessed the number of deaths, the crude death rate, the ranking of causes of death, and trends in the death rate from the major causes of death. Causes of death were classified according to the International Statistical Classification of Diseases and Related Health Problems, 10th revision, as recommended by the World Health Organization. In order to determine the ranking of causes of death, Statistics Korea used the selection list of 56 causes of death from the 80 causes of death list for tabulation mortality statistics recommended by World Health Organization to better fit the Korean situation. The 10 leading causes of death were, in order, cancer, heart disease, cerebrovascular disease, suicide, pneumonia, diabetes mellitus, chronic lower respiratory disease, liver disease, transport accidents, and hypertensive diseases. The top 10 causes of death accounted for 70.5% of all Korean deaths. The ranking of cancer types as causes of death was lung, liver, stomach, colon, and pancreatic cancer. Death rates for heart disease increased from the third in 2013 to the second leading cause in 2014 and the rank of pneumonia moved up from the sixth in 2013 to the fifth in 2014. The mortality rate due to stomach cancer has decreased continuously over time.. This finding may reflect changes in Korean society involving population structure, epidemiological patterns, and lifestyles, including dietary habits.