Table 1.
Cohort 1 | Cohort 2 | Inter-cohort | ||||||
---|---|---|---|---|---|---|---|---|
LTS (n = 22) | STS (n = 14) | P value* | LTS (n = 30) | STS (n = 27) | P value* | LTS | STS | |
Age (years) | 68.5 | 68.1 | 0.779 | 67 | 64 | 0.728 | 0.334 | 0.401 |
Sex (males) | 15 (68.18%) | 12 (86%) | 0.236 | 21 (70%) | 14 (51.85%) | 0.160 | 0.887 | 0.033 |
SSIGN score (0/1/2/3) | 2/2/4/14 | 3/4/2/5 | 0.567** | 6/7/2/15 | 8/4/2/13 | 0.905** | 0.567** | 0.924** |
Stage (1/2/3/4) | 20/0/2/0 | 12/0/2/0 | 0.999** | 20/8/1/1 | 20/7/0/0 | 0.994** | 0.169** | 0.284 |
Tumor size (cm) | 5 | 4.5 | 0.373 | 4.75 | 4.3 | 0.711 | 0.911 | 0.507 |
Grade (1/2/3/4) | 0/6/16/0 | 0/5/9/0 | 0.962 | 2/14/14/0 | 3/14/10/0 | 0.985** | 0.550 | 0.663 |
Necrosis (yes) | 3 (13.64%) | 1 (7.14%) | 0.999*** | 1 (3.33%) | 3 (11.11%) | 0.336*** | 0.299*** | 1.000*** |
Values of continuous variables are displayed as median
Inter-cohort section shows the P values of the analysis of LTScohort 1 versus LTScohort 2, and STScohort 1 versus STScohort 2
*P value of the non-parametric Wilcoxon rank test for continuous data and χ2 for categorical data
**P value resulting from using a Yates χ2 test
***P value resulting from using a 2 × 2 Fisher’s test