The level of mortality in Korean society is steadily decreasing for both men and women. Compared to OECD countries, the level remains low.

The three main causes of death are malignant neoplasm (cancer), heart disease, cerebrovascular disease and pneumonia, and deaths from pneumonia, suicide and Alzheimer's disease are on the rise.
This doesn’t make sense. The four main causes of death are malignant neoplasm (cancer), heart disease, cerebrovascular disease and deaths from pneumonia. Also, deaths from pneumonia, suicide and Alzheimer's disease are on the rise.

The death rate of the widowed is the highest, followed by divorcees, persons with spouses, and unmarried persons. The death rate of university-educated people is the lowest, showing a negative relationship between the education level and the mortality rate.

Although the number of deaths and the crude death rate vary greatly by region, the age-standardized death rate is not that different from region to region.

The death rate of middle-and-old-aged people (50 years or older) due to cancer and dementia increases with age, and the death rate from suicide tends to increase significantly beginning at  the age of 70.