Table I.
Characteristics of Cases of Invasive Adenocarcinoma and Adenocarcinoma with Lepidic Features
| Invasive AC | ACwLP | P value | |
|---|---|---|---|
| Age: y* | 65.2 (±11.0) | 69.2 (±9.0) | 0.046 |
| Sex: n (%) | |||
| Female | 69 (52.7) | 21 (75.0) | |
| Male | 62 (47.3) | 7 (25.0) | 0.074 |
| BMI:ψ | 26.0 (6.7) | 24.7 (6.5) | 0.156 |
| Smoking: n (%) | |||
| Never | 17 (13.3) | 6 (21.4) | |
| Former | 72 (56.2) | 14 (50.0) | |
| Current | 39 (30.5) | 8 (28.6) | 0.571 |
| Pack yearsψ | 38.0(40.0) | 18.7 (38.1) | 0.013 |
| PMH Chronic Bronchitis: n (%) | 17 (13.6) | 5 (20.8) | 0.355 |
| PMH Emphysema: n (%) | 21 (16.8) | 3 (12.5) | 0.766 |
| Emphysema: %ψ | 3.5 (11.9) | 2.9 (10.5) | 0.155 |
| Family History : n (%) | 28 (17.2) | 5 (15.2) | 0.605 |
| Stage: n (%) | |||
| Early (1-2) | 18 (13.7) | 24 (85.7) | |
| Late (3-4) | 113 (86.3) | 4 (14.3) | <0.001 |
| Lobar Tumor Location: n (%) | |||
| Upper lobe | 91 (69.5) | 14 (50.0) | |
| Lower lobe | 40 (30.5) | 14 (50.0) | 0.077 |
| Regional Tumor Location: n (%) | |||
| Upper region | 77 (58.8) | 11 (39.3) | |
| Middle region | 41 (31.3) | 6 (21.4) | |
| Lower region | 13 (9.9) | 11 (39.3) | 0.001 |
AC = adenocarcinoma, ACwLP = adenocarcinoma with lepidic features.
Percentages represent distribution within invasive AC or ACwLP groups.
*
denotes mean ± standard deviation presented.
ψ
denotes median and interquartile range presented.
PMH denotes history of disease as reported by the subject.