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Reply to questions under the question number to refer to it. Or if you would rat

ID: 124085 • Letter: R

Question

Reply to questions under the question number to refer to it. Or if you would rather make space under the question here that too would work.

1. What disease did you select? Why? (no more than 2-3 complete sentences)

I               chose lung cancer because it is the leading cause of death in the U.S. The case of case are increasing worldwide. It is a cause for concern and something needed to be done to decrease the chances of getting lung cancer

2. List 1 person characteristic that affects the distribution of this disease. Why? (age, gender, occupation, etc.) They are listed in the text.

3. Explain how this characteristic affects the distribution of disease. (no more than 2-3 complete sentences)

4. Did you use incidence or mortality data? Why?

5. List 1 place characteristics that affects the distribution of disease. (geography, urban/rural, tropical versus temperate, etc.)

Genetic susceptibility of a community can increase risk for cancer. A certain community or ethnic group may be at higher risk of contracting cancer. This is because the probable gene or genetic make up responsible for the occurrence of cancer may be present in one ethnic group and not the other. For example in case of cancer, different ethnic groups have shown different incidence rates of cancer. Black men are known to be at a higher risk of getting cancer than American Indian/Alaska Native (AI/AN) men. Incidence was used to show this difference in cancer distribution among various ethnic groups. So in certain parts of Asia

6. Explain how it affects the distribution of disease. (no more than 2-3 complete sentences).

7. List 1 time characteristic that affects the distribution of disease.

8. Explain why you selected either incidence or mortality. (no more than 3 complete sentences).

9. List one reference you used in the DB.

Explanation / Answer

Reply to questions under the question number to refer to it. Or if you would rather make space under the question here that too would work.

1. What disease did you select? Why? (no more than 2-3 complete sentences)

I chose lung cancer because it is the leading cause of death in the U.S. The case of case are increasing worldwide. It is a cause for concern and something needed to be done to decrease the chances of getting lung cancer.

2. List 1 person characteristic that affects the distribution of this disease. Why? (age, gender, occupation, etc.) They are listed in the text.

Smoking:

Tobacco smoking is by far the main contributor to lung cancer.

3. Explain how this characteristic affects the distribution of disease. (no more than 2-3 complete sentences)

Cigarette smoke contains at least 73 known carcinogens including benzopyrene, NNK, 1,3-butadiene and a radioactive isotope of polonium, polonium-210. Across the developed world, 90% of lung cancer deaths in men during the year 2000 were attributed to smoking (70% for women). Smoking accounts for about 85% of lung cancer cases.

4. Did you use incidence or mortality data? Why?

The incidence of lung cancer is strongly correlated with cigarette smoking, with about 90% of lung cancers arising as a result of tobacco use. Lung cancer is the most common cause of death due to cancer in both men and women throughout the world. Statistics from the American Cancer Society estimated that in 2016 about 224,000 new cases of lung cancer in the U.S. occurred and over 158,000 deaths were due to the disease. According to the U.S. National Cancer Institute, approximately 6.5% of men and women in the U.S. will be diagnosed with cancer of the lung at some point in their lifetime based on data from 2011-13. Lung cancer is predominantly a disease of the elderly; almost 70% of people diagnosed with lung cancer are over 65 years of age, while less than 3% of lung cancers occur in people under 45 years of age. The median age at diagnosis is 70 years.

5. List 1 place characteristics that affects the distribution of disease. (geography, urban/rural, tropical versus temperate, etc.)

Genetic susceptibility of a community can increase risk for cancer. A certain community or ethnic group may be at higher risk of contracting cancer. This is because the probable gene or genetic make up responsible for the occurrence of cancer may be present in one ethnic group and not the other. For example in case of cancer, different ethnic groups have shown different incidence rates of cancer. Black men are known to be at a higher risk of getting cancer than American Indian/Alaska Native (AI/AN) men. Incidence was used to show this difference in cancer distribution among various ethnic groups. So in certain parts of Asia

6. Explain how it affects the distribution of disease. (no more than 2-3 complete sentences).

The risk of lung cancer among ethnic and racial groups was modified by the number of cigarettes smoked per day. Among participants who smoked no more than 30 cigarettes per day, African Americans and Native Hawaiians had significantly greater risks of lung cancer than did the other groups.

7. List 1 time characteristic that affects the distribution of disease.

Among lung cancers, a substantial shift over time has occurred in the recorded frequency of adenocarcinoma (AdC) relative to that of squamous cell carcinoma (SqCC). This is evident in many countries, and also in those who have never smoked. Statistics on survival in people with lung cancer vary depending on the stage (extent) of the cancer when it is diagnosed. Despite the very serious prognosis (outlook) of lung cancer, some people with earlier stage cancers are cured. More than 430,000 people alive today have been diagnosed with lung cancer at some point.

8. Explain why you selected either incidence or mortality. (no more than 3 complete sentences).

The American Cancer Society’s estimates for lung cancer in the United States for 2017 are:

• About 222,500 new cases of lung cancer (116,990 in men and 105,510 in women)

• About 155,870 deaths from lung cancer (84,590 in men and 71,280 in women)

Lung cancer is by far the leading cause of cancer death among both men and women; about 1 out of 4 cancer deaths are from lung cancer.

9. List one reference you used in the DB.

Lung Cancer - American Cancer Society

https://www.cancer.org › cancer › lung-c...