| High risk cohort | Low risk cohort |
---|---|---|
Patients | 194 | 187 |
Slices | 1394 | 1051 |
Age (years) | ||
 Mean ± SD | 51.22 ± 11.25 | 50.31 ± 10.51 |
 < 45 | 48 | 51 |
 45–55 | 87 | 79 |
 > 55 | 59 | 57 |
Gender | ||
 Male | 139 | 123 |
 Female | 55 | 64 |
T stagea | ||
 T1 | 11 | 24 |
 T2 | 41 | 93 |
 T3 | 82 | 51 |
 T4 | 60 | 19 |
N stagea | ||
 N0 | 13 | 37 |
 N1 | 24 | 69 |
 N2 | 123 | 72 |
 N3 | 34 | 9 |