Burden Of Cancer In Korea Research Articles

Prediction of cancer incidence and mortality in Korea, 2011.

PurposeTo estimate the current cancer burden in Korea, cancer incidence and mortality were projected for the year 2011.Materials and MethodsThe cancer incidence data from 1999-2008 were obtained from the Korea National Cancer Incidence Database, and the cancer mortality data from 1993-2009 were obtained from the Korea National Statistics Office. Cancer incident cases and rates in 2011 were projected from fitting a linear regression model on observed age-specific cancer incidence rates against observed years, then multiplying the projected age-specific rates by the age-specific population. For cancer mortality, a similar procedure was applied for projection except that a Joinpoint regression model was used to determine at which year the linear trend significantly changed.ResultsA total of 216,809 new cancer cases and 71,036 cancer deaths are projected to occur in Korea in 2011. For all sites combined, the crude incidence rates are projected to be 437.9 and 420.5 and the age-standardized incidence rates are projected to be 336.5 and 279.7 per 100,000 for men and women, respectively.ConclusionCancer has become an important public health concern in Korea, and as Korea becomes an aged society, the cancer burden will continue to increase.

Occupational Burden of Cancer in Korea

ObjectivesThe extent of the occupational cancer burden has rarely been estimated in Korea. The aim of this study is to provide an estimation of the population attributable fraction (PAF) of occupational cancer in Korea.MethodsNine kinds of Group 1 carcinogens addressed by the International Agency for Research on Cancer (IARC) and 7 kinds of cancer were selected for the target carcinogens and diseases, respectively. The prevalence of carcinogen-exposed workers was estimated and correction factors were applied so that the value would be representative of the total population. Data on relative risk (RR) were taken from IARC reports and were compared with the RRs from the studies on Korean workers. The PAF was estimated according to Levin's formula.ResultsThe proportion of the general Korean population exposed to carcinogens was 9.7%. The PAF of total cancer was 1.1% for incident cancer cases and 1.7% for cancer deaths. The PAFs of lung cancer and leukemia were 7.0% and 4.%, respectively. With the RRs reported from Korean studies, the PAF for lung cancer and leukemia were 3.7% and 3.4%, respectively.ConclusionThe PAF in this study (1.1%) was lower than that reported in previous studies (2-4%) from developed countries. Considering that only 9 of the 29 kinds of Group 1 carcinogens were included in this study, the PAF might be underestimated. However, because the process of industrialization in Korea differs from that which occurred in other developed countries, 1.1% of the PAF might be appropriate for Korea.

Nationwide cancer incidence in Korea, 2003-2005.

To estimate the current cancer burden in Korea, newly diagnosed cancer cases and cancer incidence rates were calculated for the years 2003~2005. The cancer incidence cases and rates were calculated from the Korea National Cancer Incidence Database. Crude and age-standardized incidence rates were calculated by gender for specified cancer sites in 5-year age groups. From 2003 to 2005, 398,824 cases of cancer were newly diagnosed in Korea (218,856 in men and 179,968 in women). For all sites combined, the crude incidence rate (CR) was 300.0 and 248.2 for men and women and the age-standardized incidence rate (ASR) was 297.0 and 191.2 per 100,000, respectively. Among men, five leading cancers were stomach (CR 66.0, ASR 64.2), lung (CR 48.5, ASR 50.3), liver (CR 44.9, ASR 42.1), colon and rectum (CR 37.9, ASR 37.2), and prostate cancer (CR 12.7, ASR 13.8). Among women, five leading cancers were breast (CR 37.3, ASR 29.0), thyroid (CR 36.2, ASR 28.8), stomach (CR 34.1, ASR 25.4), colon and rectum (CR 28.0, ASR 21.1), and lung cancer (CR 17.9, ASR 12.8). In the 0~14-year-old group, leukemia was the most common in both sexes; in the 15~34 group, the most common cancer was stomach cancer for men and thyroid cancer for women; in the 35~64 group, stomach cancer for men and breast cancer for women; among those 65 and over, lung cancer for men and stomach cancer, for women, respectively. The cancer incidence rates have increased in recent years, and more cancers are expected to develop as Korea is quickly becoming an aged society. The cancer incidence statistics in this report can be used as an important source to effectively plan and evaluate the cancer control program in Korea.

The economic burden of cancer in Korea in 2002

Cancer is the leading cause of death and one of the most significant healthcare expenses in Korea. The purpose of this study was to estimate the economic burden of cancer on Korean society. We studied the medical, non-medical, morbidity and mortality costs related to cancer treatment, lost productivity and premature death. Healthcare claims for 2002 obtained from the Health Insurance Review Agency were used to estimate medical expenditures; these were linked with the Korean Central Cancer Registry database to identify cancer patients. The number of deaths used to estimate mortality costs was obtained from the Annual Report of Mortality from the National Statistics Office of Korea. Moreover, data from the Korean National Statistics Office and Ministry of Labor were used to calculate life expectancy at the age of death, labour force participation, and average age- and gender-specific earnings. In 2002, the estimated total economic cost of cancer amounted to $9.4 billion (1.72% of GDP) at a 3% discount rate. Medical care costs amounted to 13.7% of total costs, non-medical costs 6.5%, morbidity costs 14.5%, and mortality costs accounted for 65.3%. Increased prevention, earlier diagnosis, new therapies and effective cancer control policies are needed to reduce the economic burden of cancer in Korea.