Table 1.
Characteristics of Patients in the Training and Validation Cohorts.
| Characteristics | Training Cohort (n = 120) | Validation Cohort (n = 50) | ||||
|---|---|---|---|---|---|---|
| SCN (n = 81) | MCN (n=39) | P | SCN (n = 34) | MCN (n = 16) | P | |
| Age, mean ± SD | 51.2 ± 11.5 | 50.8 ± 14.9 | .890 | 56.4 ± 14 | 53.9 ± 11.1 | .523 |
| Sex, No (%) | ||||||
| Male | 15 (18.5) | 3 (7.7) | .199 | 11 (36.7) | 2 (12.5) | .251 |
| Female | 66 (81.5) | 36 (92.3) | 23 (63.3) | 14 (87.5) | ||
| Lesion size (cm) | 4.0 ± 2.5 | 4.7 ± 2.1 | .113 | 4.3 ± 2.4 | 5.5 ± 2.7 | .105 |
| Tumor location | ||||||
| Head and neck | 37 (45.7) | 9 (23.1) | .029 | 13 (38.2) | 13 (81.2) | .011 |
| Body and tail | 44 (54.3) | 30 (76.9) | 21 (61.8) | 3 (18.8) | ||
| Cyst number | ||||||
| Single | 50 (61.7) | 33 (93.9) | .019 | 16 (47.1) | 12 (75.0) | .120 |
| Multiple | 31 (38.3) | 6 (6.1) | 18 (52.9) | 4 (25.0) | ||
| Calcification | ||||||
| Absent | 53 (65.4) | 25 (64.1) | 1.00 | 20 (58.8) | 12 (75.0) | .426 |
| Present | 28 (34.6) | 14 (35.9) | 14 (41.2) | 4 (25.0) | ||
| Septation | ||||||
| Absent | 40 (49.4) | 14 (35.9) | .232 | 11 (32.4) | 8 (50.0) | .375 |
| Present | 41 (50.6) | 25 (64.1) | 23 (67.6) | 8 (50.0) | ||
| Lesion shape | ||||||
| Oval | 50 (61.7) | 27 (69.2) | .548 | 20 (58.8) | 12 (75.0) | .426 |
| Irregular lobulation | 31 (38.3) | 12 (30.8) | 14 (41.2) | 4 (25.0) | ||
| Wall enhancement | ||||||
| Absent | 57 (70.4) | 26 (64.1) | 1.00 | 23 (67.6) | 11 (68.8) | 1.00 |
| Present | 24 (29.6) | 13 (35.9) | 11 (32.4) | 5 (31.2) | ||
| Mural nodules | ||||||
| Absent | 64 (79.0) | 35 (89.7) | .233 | 23 (67.6) | 15 (93.8) | .096 |
| Present | 17 (21.0) | 4 (10.3) | 11 (32.4) | 1 (6.2) | ||