. Author manuscript; available in PMC: 2017 Aug 1.

Published in final edited form as: Clin Trials. 2016 Mar 22;13(4):434–438. doi: 10.1177/1740774516638345

Table 3.

Lung cancer deaths, mortality rates, and mortality reductions by method of COD ascertainment

	Best information^*		Death certificate COD
	Low dose computed tomography	Chest x-ray	Low dose computed tomography	Chest x-ray
Lung cancer deaths	356	443	336	408
Lung cancer mortality rates (per 10,000 person-years)	247.1	309.1	233.2	284.6
Percent reduction in lung cancer mortality (95% confidence interval)	20.0 (6.7-26.7)		18.0 (4.2-25.0)

COD: cause of death.

Best information refers to the review COD if one was available and the death certificate COD otherwise. Data censored at January 15, 2009.