<prompt> Answer this question truthfullyWhat is the epidemiology and demographics of small cell lung carcinoma?  <response>: <reason> Small cell lung cancer SCLC represents 13.4 of all the lung cancers in the United States. The majority of small cell lung cancer occurs among patients 65 years of age. The age-adjusted incidence of small cell lung cancer in the United States is reported to be 6.23 per 100,000 individuals in 2011. 