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. 2013 Oct 12;11:271. doi: 10.1186/1477-7819-11-271

Table 2.

Mean progression-free survival and overall survival for various characteristics based on Kaplan-Meier analysisa

Variables
Mean PFS
P
Mean OS
P
  (95% CI)   (95% CI)  
BMI
 
0.077
 
0.701
 <23 kg/m2
79.4 (74.6 to 84.2)
 
71.9 (66.9 to 76.9)
 
 ≥23 kg/m2
77.2 (72.9 to 81.4)
 
75.0 (70.8 to 79.3)
 
Mean age
 
0.628
 
0.727
 <60 years
78.9 (74.0 to 83.8)
 
74.6 (69.6 to 79.6)
 
 ≥60 years
78.3 (74.0 to 82.6)
 
74.0 (69.7 to 78.3)
 
Gender
 
0.112
 
0.043
 Male
75.3 (71.1 to 79.6)
 
71.1 (67.0 to 75.1)
 
 Female
81.3 (76.9 to 86.8)
 
77.3 (72.0 to 82.6)
 
Diabetes
 
0.158
 
0.884
 Yes
70.2 (61.9 to 78.5)
 
69.2 (60.5 to 77.8)
 
 No
80.3 (76.8 to 83.8)
 
74.9 (71.3 to 78.4)
 
Alcohol
 
0.291
 
0.088
 Yes
75.1 (68.3 to 81.9)
 
69.2 (62.6 to 75.8)
 
 No
80.1 (76.4 to 83.7)
 
76.2 (72.4 to 80.0)
 
Smoking
 
0.222
 
0.007
 Yes
74.7 (68.5 to 80.9)
 
67.9 (62.0 to 73.8)
 
 No
80.3 (76.5 to 84.1)
 
76.9 (72.9 to 80.8)
 
Site
 
0.289
 
0.788
 Colon
78.4 (74.0 to 82.8)
 
73.2 (68.8 to 77.7)
 
 Rectum
77.5 (73.0 to 82.1)
 
74.0 (69.5 to 78.5)
 
Tumor size
 
0.903
 
0.015
 <5 cm
79.8 (75.8 to 83.8)
 
78.1 (74.0 to 82.3)
 
 ≥5 cm
77.4 (72.0 to 82.9)
 
69.2 (64.0 to 74.4)
 
Pathological type
 
0.291
 
2.5 × 10–4
 Adenocarcinoma
79.9 (76.5 to 83.3)
 
76.7 (73.2 to 80.3)
 
 Others
71.7 (61.5 to 82.0)
 
59.2 (50.2 to 68.3)
 
Differentiation
 
0.112
 
4.0 × 10–5
 Grade 3/4
80.4 (77.0 to 83.9)
 
78.0 (74.6 to 81.4)
 
 Grade 1/2
67.3 (59.1 to 75.4)
 
57.1 (49.7 to 64.5)
 
Lymph nodes harvested
 
0.910
 
0.575
 ≥12
79.3 (74.4 to 84.2)
 
73.4 (68.4 to 78.5)
 
 <12
76.3 (72.2 to 80.3)
 
73.0 (69.0 to 77.1)
 
Lymph nodes positive
 
1.5 × 10–7
 
2.0 × 10–13
 Positive
67.8 (61.9 to 73.8)
 
60.9 (55.6 to 66.3)
 
 Negative 85.4 (81.8 to 89.0)   84.6 (80.9 to 88.3)  

aBMI, body mass index; CI, confidence interval; OS, overall survival; PFS, progression-free survival.