From July-September, the days are warm (avg. high 78Â° F/25Â° C) with blissfully low humidity. Rain is rare and the evenings are long: The sun doesnât set until around 9 p.m. in June and July. What to pack: Summer attire; light jacket for cooler evenings.
Research has found several risk factors that may increase your chances of getting lung cancer. Smoking. Cigarette smoking is the number one risk factor for lung cancer. In the United States, cigarette smoking is linked to about 80% to 90% of lung cancers. Using other tobacco products such as cigars or pipes also increases the risk for lung cancer. Tobacco smoke is a toxic mix of more than 7,000 chemicals.
Relative risk. Consider an example where the probability of developing lung cancer among smokers was 20% and among non-smokers 1%. This situation is expressed in the 2 Ã 2 table to the right. Here, a = 20, b = 80, c = 1, and d = 99. Then the relative risk of cancer associated with smoking would be R R = a / c / = 20 / 100 1 / 100 = 20. {\displaystyle RR={\frac {a/}{c/}}={\frac {20/100}{1/100}}=20.} Smokers would be twenty times as likely as non-smokers to develop lung cancer. The alternative term risk ...