New research by a local hospital shows the incidence of breast cancer among young Korean women is decreasing.<br /> Like many Asian countries, South Korea used to have a high percentage of breast cancer patients under the age of 40.<br />Samsung Medical Center analyzed some one-hundred-thousand breast cancer patients this year and found 15-point-five percent were under 40 years old, a decrease from some 30 percent in the 1990s. <br />This figure is expected fall to around five percent by 2020.<br /> However, the number of patients with a type of breast cancer called Luminal A is on the rise in South Korea. <br />This type of breast cancer is generally more common in Western countries. <br />Researchers think the trend is associated with environmental factors such as increased fat intake, obesity and late childbirth. <br />
