Table 1 Demographic characteristics of patients
Variables | Benign group (n = 34) | Malignancy group (n = 59) | x2 a | P |
|---|---|---|---|---|
Gender, n (%) | 8.654 | 0.003 | ||
Male | 21 (61.8%) | 18 (30.5%) | ||
Female | 13 (38.2%) | 41 (69.5%) | ||
Age, year | 51.27 ± 10.53 | 54.17 ± 10.81 | 1.260b | 0.211 |
Smoking history, n (%) | ||||
All patients | 4.446 | 0.035 | ||
Yes | 10 (29.4%) | 7 (11.9%) | ||
No | 24 (70.6%) | 52 (88.1%) | ||
Male | 0.300 | 0.584 | ||
Yes | 10 (47.6%) | 7 (38.9%) | ||
No | 11 (52.4%) | 11 (61.1%) | ||
Female | - | - | ||
Yes | 0 | 0 | ||
No | 13 (100%) | 41 (100%) | ||
Family history of cancer, n (%) | 0.431 | 0.512 | ||
Yes | 7 (20.6%) | 9 (15.3%) | ||
No | 27 (79.4%) | 50 (84.7%) | ||
Nodule diameter (d), n (%) | 1.830c | 0.419 | ||
5 mm < d ≤ 10 mm | 17 (50.0%) | 29 (49.2%) | ||
10 mm < d ≤ 20 mm | 12 (35.3%) | 26 (44.1%) | ||
20 mm < d ≤ 30 mm | 5 (14.7%) | 4 (6.8%) | ||
Type of nodule, n (%) | 15.267 | 0.001 | ||
Solid nodule | 22 (64.7%) | 14 (23.7%) | ||
Mixed ground-glass nodule | 5 (14.7%) | 19 (32.2%) | ||
Pure ground-glass nodule | 7 (20.6%) | 26 (44.1%) | ||
Solitary nodule, n (%) | 0.593 | 0.441 | ||
Yes | 10 (29.4%) | 22 (37.3%) | ||
No | 24 (70.6%) | 37 (62.7%) | ||
Location of nodule, n (%) | 0.037 | 0.848 | ||
Upper lobe | 22 (64.7%) | 37 (62.7%) | ||
Non-upper lobe | 12 (35.3%) | 22 (37.3%) | ||
Spiculation, n (%) | 0.555 | 0.456 | ||
Yes | 25 (77.8%) | 39 (55.2%) | ||
No | 9 (22.2%) | 20 (44.8%) | ||
Histology, n (%) | - | - | ||
Benign tumour | 2 (5.9%) | - | ||
Granuloma | 9 (26.5%) | - | ||
Chronic inflammation | 18 (52.9%) | - | ||
Otherd | 5 (14.7%) | - | ||
Adenocarcinoma | - | 57 (96.6%) | ||
Othere | - | 2 (3.4%) |