Table 1.
Clinical characteristics and imaging features in the patients with and without the CT-occult CLSCC and SEPL
| CT-occult CLSCC and SEPL | Non CT-occult CLSCC and SEPL | p Value | |
|---|---|---|---|
| n = 41 | n = 48 | ||
| Patient characteristics, number(%) or median(IQR) | |||
| Sex (men) | 41/41 (100.0%) | 48/48 (100.0%) | |
| Age, years | 62(10) | 60.05(10) | 0.083 |
| Ex-or-current smokers | 35/41(85.4%) | 30/48(62.5%) | 0.015 |
| Pack-years ≥ 20 | 35/41(85.4%) | 30/48(62.6%) | 0.015 |
| Laboratory examinations, median (IQR) | |||
| CEA(ng/ml) | 1.97(2.57) | 1.285(1.62) | 0.046 |
| CA125(U/ml) | 10.4(8.85) | 7.95(5.5) | 0.011 |
| CA199(U/ml) | 8.63(10.26) | 9.99(7.32) | 0.633 |
| Radiological examinations, number (%) | |||
| Other nodules | 34(82.9%) | 46(95.8%) | 0.075 |
| Focal fibrosis | 24(58.5%) | 24(50%) | 0.421 |
| Bulla | 9(22%) | 7(14.6%) | 0.367 |
| CT radiomics characteristics, number (%) | |||
| Interval distribution 1 | 0.008 | ||
| [-950 ~ -850HU] | 30(73.2%) | 45(93.8%) | |
| [-850 ~ -750HU] | 11(26.8%) | 3(6.2%) | |
| Interval distribution 2 | 0.001 | ||
| [-950 ~ -900HU] | 7(17.1%) | 24(50%) | |
| [-900 ~ -850HU] | 34(82.9%) | 24(50%) | |
CT-occult CLSCC and SEPL CT-occult central lung squamous cell carcinoma and squamous epithelial precancerous lesions, LC lung cancer