Clinical factors | Training set (n = 98) | Validation set (n = 37) | ||||
---|---|---|---|---|---|---|
SSM group (n = 49) | SPST group (n = 49) | p | SSM group (n = 20) | SPST group (n = 17) | p | |
Gender (male/female) | 25/24 | 23/26 | 0.840 | 13/7 | 8/9 | 0.331 |
Age, mean ± SD, years | 59.73 ± 8.41 | 49.16 ± 18.99 | 0.001 | 58.15 ± 11.39 | 51.35 ± 20.94 | 0.243 |
Maximum diameter (cm) | 3.06 ± 1.38 | 4.87 ± 10.53 | 0.234 | 3.39 ± 1.26 | 4.71 ± 2.94 | 0.101 |
Shape (regular or irregular) | 14/35 | 13/36 | 1.000 | 6/14 | 4/13 | 0.725 |
Signal (uniform or uneven) | 30/19 | 18/31 | 0.026 | 12/8 | 7/10 | 0.330 |
Boundaries (clear or unclear) | 10/39 | 26/23 | 0.001 | 8/12 | 13/4 | 0.045 |