TABLE 2.

Summary of physicians' estimates before and after the intervention.

Estimate	True value (per 1000)	Mean before (SD)	Median before	Mean after (SD)	Median after	Odds ratio	p
Mortality over the next decade without screening	32	47.00 (73.70)	20	41.10 (30.60)	32	13	< 0.001
Mortality over the next decade with screening	24	22.76 (30.97)	10	30.82 (29.07)	24	13	< 0.001
Positive chest CT screening results	385	174.89 (191.03)	100	288.09 (149.20)	350	9.54	< 0.001
Additional procedures required due to screening	355	120.45 (164.18)	50	218.86 (158.53)	275	11.3	< 0.001
Unnecessary treatment	6	24.54 (84.40)	6.5	9.52 (10.86)	6	1.83	0.2253