Table 1 Background and clinical characteristics and lung cancer diagnosis in the National Lung Screening Trial (NLST) (n = 53,452)
From: Racial difference in BMI and lung cancer diagnosis: analysis of the National Lung Screening Trial
n | % | |
|---|---|---|
Male Gender | 31,530 | 59.0% |
Age (mean ± SD) | 61.42 ± 5.02 | |
Race/ethnicity | ||
Non-Hispanic Whites | 47,744 | 90.0% |
Non-Hispanic African Americans | 2,341 | 4.4% |
Other Races | 2,942 | 5.6% |
Education | ||
< High school | 3,249 | 6.2% |
High school graduate + | 32,423 | 62.1% |
College graduates | 16,546 | 31.7% |
Smoking status | ||
Former | 27,692 | 51.8% |
Current | 25,760 | 48.2% |
Smoking pack-years (mean ± SD), range | 55.9 ± 23.9 | |
Family history of lung cancer (= Yes) | 11,037 | 20.7% |
COPD (= Yes) | 2,690 | 5.1% |
BMI (n = 53,090) | ||
Underweight/Normal (< 25) | 15,320 | 28.9% |
Overweight (25–29.99) | 22,761 | 42.9% |
Obese (> = 30) | 15,009 | 28.2% |
Lung cancer diagnosis | 2,058 | 3.9% |
Lung cancer stage | ||
Stage I | 831 | 40.4% |
Stage II | 146 | 7.1% |
Stage III | 459 | 22.3% |
Stage IV | 596 | 28.9% |
No stage recorded | 26 | 1.3% |
Histology | ||
Adenocarcinoma | 902 | 44.4% |
Squamous cell carcinoma | 462 | 22.7% |
Large cell carcinoma | 52 | 2.6% |
Small cell carcinoma | 287 | 14.1% |
Carcinoid/ Neuroendocrine tumor | 60 | 3.0% |
Non-small cell carcinoma or other | 271 | 13.3% |