Table 2.
Comparison of baseline clinical characteristics between groups
|
Items
|
Recurrence group (n = 39)
|
Non-recurrence group (n = 81)
|
t/χ2
|
P value
|
|
| Sex | Male | 21 (53.85) | 47 (58.02) | 0.826 | 0.106 |
| Female | 18 (46.15) | 32 (41.98) | |||
| Age (years) | 59.48 ± 4.09 | 59.29 ± 4.11 | 0.883 | 0.217 | |
| Pathological staging | I | 12 (30.77) | 22 (27.16) | 0.907 | 0.114 |
| II | 20 (51.28) | 47 (58.02) | |||
| IIIa | 7 (17.95) | 12 (14.81) | |||
| Differentiation | Low differentiation | 23 (58.97) | 46 (56.79) | 0.746 | 0.083 |
| Medium differentiation | 15 (38.46) | 31 (38.27) | |||
| High differentiation | 1 (2.57) | 4 (4.94) | |||
| BMI (kg/m2) | 20.16 ± 0.68 | 20.23 ± 0.73 | 0.842 | 0.103 | |
Continuous data are presented as mean ± SD and compared by independent t-test. Categorical data are presented as n (%) and compared by χ2 test, except where expected cell counts were below 5, in which case Fisher's exact test was used. BMI: Body mass index.