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Table 2 Multivariate analysis of clinicopathologic factors related to disease-free and overall survival

From: A lower cut-off for lymph node harvest predicts for poorer overall survival after rectal surgery post neoadjuvant chemoradiotherapy

VariablesCategoryNDisease-free survivalOverall survival
Median ± SD (months)P valueMedian ± SD (months)P value
Age at diagnosis (years)< 501881 ± 460.18090 ± 380.370
50–6410168 ± 4273 ± 39
65–747463 ± 3969 ± 37
> 756463 ± 3965 ± 38
GenderMale17463 ± 420.16069 ± 390.470
Female8373 ± 3876 ± 36
Neoadjuvant therapyNo16362 ± 400.06068 ± 380.191
Yes9473 ± 4177 ± 42
Type of operationUltra-low anterior resection3256 ± 380.90861 ± 390.659
Low anterior resection16867 ± 4373 ± 40
Hartmann’s procedure1955 ± 4259 ± 38
Abdominoperineal resection3877 ± 4459 ± 42
Tumour stagingStage 16184 ± 39< 0.00185 ± 40< 0.001
Stage 26167 ± 3572 ± 38
Stage 313558 ± 3864 ± 37
Lymph node harvest< 125361 ± 440.07062 ± 420.051
≥ 1220468 ± 4273 ± 36