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Table 4 Characteristics of patients with colon cancer stages I-III that underwent major resections with curative intent

From: Octogenarian patients with colon cancer – postoperative morbidity and mortality are the major challenges

Characteristic

Total,

n = 1021

Age group (years)

P value

 < 65,

n = 233

65–74,

n = 327

75–79,

n = 201

80–84,

n = 171

85–89,

n = 66

 ≥ 90,

n = 23

Sex

       

0.043a

  Females

534 (52)

121 (52)

156 (48)

105 (52)

99 (58)

38 (58)

15 (65)

 

  Males

487 (48)

112 (48)

171 (52)

96 (48)

72 (42)

28 (42)

8 (35)

 

Calendar year

       

0.011b

  1980–1989

175 (17)

50 (29)

61 (35)

28 (16)

27 (15)

9 (5)

0 (0)

 

  1990–1999

241 (24)

55 (23)

79 (33)

49 (20)

35 (15)

16 (7)

7 (3)

 

  2000–2009

334 (33)

82 (25)

92 (28)

64 (19)

67 (20)

18 (5)

11 (3)

 

  2010–2016

271 (27)

46 (17)

95 (35)

60 (22)

42 (16)

23 (9)

5 (2)

 

ASA score

       

 < 0.001b

  1–2

591 (58)

190 (82)

215 (66)

94 (47)

69 (40)

19 (29)

4 (17)

 

  3

395 (39)

41 (18)

101 (31)

101 (50)

93 (54)

44 (67)

15 (65)

 

  4

35 (3)

2 (1)

11 (3)

6 (3)

9 (5)

3 (5)

4 (17)

 

Localization

       

 < 0.001a

  Right colon 

573 (56)

103 (44)

179 (55)

130 (65)

105 (61)

43 (65)

13 (57)

 

  Left colon

448 (44)

130 (56)

148 (45)

71 (35)

66 (39)

23 (35)

10 (43)

 

Stage (TNM)

       

0.050b

  I

154 (15)

33 (14)

54 (17)

25 (12)

27 (16)

12 (18)

3 (13)

 

  II

548 (54)

125 (54)

157 (48)

116 (58)

91 (53)

43 (65)

16 (70)

 

  III

319 (31)

75 (32)

116 (35)

60 (30)

53 (31)

11 (17)

4 (17)

 

R-status

       

0.44c

  R0—resection

983 (96.3)

223 (96)

317 (97)

196 (98)

160 (94)

64 (97)

23 (100)

 

  R0—resection with perforation

20 (2)

7 (3)

5 (2)

3 (2)

4 (2)

1 (2)

0 (0)

 

  R1—resection

18 (2)

2 (1)

4 (1)

2 (1)

7 (4)

1 (2)

0 (0)

 

Type of resection

       

0.003c

  Right hemicolectomy

504 (49)

87 (37)

156 (48)

113 (56)

99 (58)

37 (56)

12 (52)

 

  Transverse resection

24 (2)

5 (2)

9 (3)

4 (2)

2 (1)

4 (6)

0 (0)

 

  Left hemicolectomy

131 (13)

39 (17)

44 (14)

27 (13)

12 (7)

4 (6)

5 (22)

 

  Sigmoid and high anterior resections

267 (26)

75 (32)

89 (27)

41 (20)

43 (25)

16 (24)

3 (13)

 

  Hartmann's operation

35 (3)

10 (4)

12 (4)

5 (2)

3 (2)

3 (4)

3 (13)

 

  Subtotal resection

55 (5)

15 (6)

17 (5)

10 (5)

11 (6)

2 (3)

0 (0)

 

  Other resections

5 (1)

2 (1)

0 (0)

1 (1)

1 (1)

1 (2)

0 (0)

 

Emergency surgery

       

0.13a

  Yes

141 (14)

30 (13)

47 (14)

20 (10)

27 (16)

7 (11)

10 (43)

 

  No

880 (86)

203 (87)

280 (86)

181 (90)

144 (84)

59 (89)

13 (57)

 
  1. Values are the number of patients (%), unless otherwise indicated. aCochran-Armitage exact trend test; bOrdinal logistic regression with age group as covariate; cNominal logistic regression with age group as covariate
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