Table 1.

Characteristics of incident lung cancer cases and controls nested within the Colorado High-Risk Cohort

CharacteristicsCases (n = 100)Controls (n = 96)
n (%)n (%)
Gender
    Male75 (75)71 (74)
    Female25 (25)25 (26)
Race
    White95 (95)92 (96)
    Other5 (5)4 (4)
Age (y)
    <6537 (37)35 (36)
    ≥6563 (63)61 (64)
    Mean age (SD)67.1 (8.04)67.1 (8.20)
Smoking
    Current smoker40 (40)31 (32)
    Former smoker57 (57)63 (66)
    Current status unknown3 (3)2 (2)
    Mean pack-years (SD)74.2 (35.6)66.9 (29.0)