Variables | Â | Whole cohort | Training cohort | Validation cohort | P-value |
---|---|---|---|---|---|
Age |  ≤ 65 | 99 (71.22%) | 49 (70%) | 50 (72.46%) | 0.89 |
 > 65 | 40 (28.78%) | 21 (30%) | 19 (27.54%) | ||
Gender | Female | 62 (44.60%) | 30 (42.86%) | 32 (46.38%) | 0.81 |
Male | 77 (55.40%) | 40 (57.14%) | 37 (53.62%) |