Table 1.

Characteristics of the 4099 participants in the MILD population, by study arm

		Control arm (N = 1723)	Intervention arm (N = 2376)	P-values
Age (years)
	<55	656 (38.1%)	773 (32.5%)	0.0065
	55–59	478 (27.7%)	700 (29.5%)
	60–64	359 (20.8%)	535 (22.5%)
	65–69	174 (10.1%)	278 (11.7%)
	≥70	56 (3.3%)	90 (3.8%)
Median age		57	58
Sex
	Male	1090 (63.3%)	1626 (68.4%)	0.0005
	Female	633 (36.7%)	750 (31.6%)
Smoking status (smokers)
	Former	177 (10.3%)	747 (31.4%)	<0.0001
	Current	1546 (89.7%)	1629 (68.6%)
Pack-years of cigarette
	<30	485 (28.2%)	521 (21.9%)	<0.0001
	≥30	1238 (71.9%)	1855 (78.1%)
Median pack-years		38	39