Table 1.

Baseline characteristics

	(N = 1699)
Age	62.6 ± 6.24
Male sex	956 (56.3%)
Caucasian	1670 (98.3%)
BMI	29.2 ± 5.97
Actively smoking	923 (54.3%)
Pack years	48.5 ± 22.9
Years quit	11.1 ± 9.3
Years follow up	5.67 ± 1.59
Emphysema	982 (57.8%)
Baseline lung-RADS®
0	1 (0.06%)
1	947 (55.7%)
2	560 (33.0%)
3	129 (7.6%)
4	62 (3.7%)
Baseline qualitative ILA
No ILA	1557 (91.6%)
Indeterminate ILA	101 (5.9%)
ILA	41 (2.4%)