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Lung and Bronchus Cancer

Having Cancer in the lung and bronchus (lung cancer, hereafter) is rated as the second most common cancer for human beings and which will lead to death both male and female sexes. Survey for men’s says that, age-adjusted lung cancer occurrence rates (per 100,000) range from a minimum of about 14 among American Indians to a maximum of 117 among blacks, almost eight times higher. With these two extremes, rates fall into two groups ranging from 42 to 53 for Chinese, Hispanics, Japanese, Filipinos, along with Koreans and from 71 to 89 for whites, Vietnamese, Alaska Natives plus Hawaiians. The survey for women is much narrower, from a rate of about 15 with Japanese people to nearly 51 with Alaska Natives, only three times higher. Survey taken for the remaining female populations fall approximately into two groups with minimum rates of 16 to 25 for Filipino, Korean, Hispanic and Chinese women, plus rates of 31 to 44 among Vietnamese, white, Hawaiian as well as black women. The rates for men are about two to three times superior to the rates among women in every of the racial/ethnic groups.

In the 30-54 year age group, incidence rates among men are two times higher those among women in majority of the racial/ethnic groups. In white non-Hispanics plus white Hispanics, nevertheless incidence rates for women are nearer to those for men. This suggests that smoking termination and prevention programs might have been especially flourishing among white men and/or that such programs have not been as successful among white women.

Age-adjusted humanity rates follow similar racial/ethnic prototype to those for the incidence rates. For men, the incidence as well as mortality rates are very alike. Filipino men are an exception, with an incidence rate almost two times as large as their mortality rate. Incidence rates are also alike to mortality rates among women, with the exemption of Filipinos plus Hispanics. In these two groups, incidence rates are almost twice as large as mortality rates. For Hawaiian women, the mortality rate in fact exceeds the incidence rate. This might be due to differences in the exactness of race classification on medical records versus death certificates.

Racial/ethnic patterns are normally consistent within every age group for both incidence and mortality. An exemption is the high incidence plus mortality rate in Chinese women aged 70 years as well as older. This group is likely to have very low incidence plus mortality rates in the young age groups.

According to the studies cigarette smoking causes cancer for nearly 90% of all lung cancers. Passive or non smokers as well contribute to the development of lung cancer among nonsmokers. Certain professional exposures such as asbestos exposure are as well known to cause lung cancer. Air pollution is a likely cause, but makes a comparatively small contribution to incidence plus mortality rates. In convinced geographic areas of the United States, indoor exposure to radon might also make a little contribution to the total occurrence of lung cancer.




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