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Table 1 Patient and tumor characteristics

From: Factors predicting recurrence after curative resection for rectal cancer: a 16-year study

Characteristic Number of patients [n (%)]
Number of patients in this study 188
Age (years) (mean) 60.5
Sex ratio (M:F) 1.35:1
Location of tumor
 Upper rectum 45 (24)
 Middle rectum 65 (35)
 Lower rectum 78 (41)
cT stage
 T1/T2 24 (13)
 T3 155 (82)
 T4 9 (5)
cN stage
 N0 82 (44)
 N+ 106 (56)
cTNM stage
 I 49 (27)
 II 38 (20)
 III 98 (51)
 IV 3 (2)
Parietal invasion
 pT1–T2 64 (34)
 pT3–T4 124 (66)
pT stage
 T1 14
 T2 50
 T3 107
 T4 17
pN stage
 N0 127
 N1 34
 N2 17
 N3 10
pTNM stage
 I 56 (30)
 II 68 (37)
 III 61 (32)
 IV 3 (1)
Tumor perforation 7 (4)
Invasion of surrounding organs 16 (8)
Degree of differentiation
 Well 41 (22)
 Moderate 133 (71)
 Poor 13 (7)
 Neoadjuvant therapy 120 (64)
Type of surgery
 APR 35 (19)
 Low anterior resection 144 (76)
 Local excision 9 (5)
Laparoscopic surgery 25 (13)
Postoperative complications 39 (21)
Adjuvant therapy 65 (34)
Number of patients with recurrence 53 (28)
Median follow-up period 57 months
Median recurrence-free survival 54 months
Median survival after recurrence 25 months
Median overall survival 75 months
2-year overall survival 73%
5-year overall survival 54%