Table 1.
Demographic and disease characteristics of GIST patients and controls.
| Total PB cases (n= 115) | Controls (n= 88) | |
|---|---|---|
| Gender, n (%)a | ||
| Female | 48 (41.4) | 30 (34.1) |
| Male | 67 (58.3) | 58 (65.9) |
| Age, yearsb | ||
| Mean ± SD (range) | 57.5 ± 13.9 (21–88) | 46.6 ± 13.4 (21–79) |
| Tumor site, n (%) | ||
| Small intestine | 49 (42.6) | |
| Stomach | 55 (47.8) | |
| Peritoneum | 4 (3,5) | |
| Rectum | 1 (0,9) | |
| Missing | 6 (5.2) | |
| Tumor size, n (%) | ||
| ≤5 cm | 22 (19.1) | |
| 6–10 cm | 35 (30.5) | |
| ≥10 cm | 46 (40.0) | |
| Missing | 12 (10.4) | |
| Status at onset, n (%) | ||
| Localized | 59 (51.3) | |
| Metastatic | 56 (48.7) |
aNo difference in gender distribution between cases and controls (P= 0.68).
bNo difference in age distribution between cases and controls (P= 0.21); for cases, age is intended at diagnosis.