Table 1 Characteristics of 666 patients admitted to the hospital with rectal cancer during 1980-2016

Sex

0.16 ^a

 Female

255 (38)

73 (38)

115 (35)

67 (47)

 Male

411 (62)

120 (62)

214 (65)

77 (53)

Calendar-year (row %)

0.23^b

 1980-1989

128 (19)

37 (19) (29)

71 (22) (56)

20 (14) (16)

 1990-1999

178 (27)

51 (26) (29)

91 (28) (51)

36 (25) (20)

 2000-2009

183(27)

54 (28) (30)

86 (26) (47)

43 (30) (24)

 2010-2016

177 (27)

51 (26) (29)

81 (25) (46)

45 (31) (25)

Charlson Comorbidity Index

 0

497 (75)

162 (84)

253 (77)

82 (57)

<0.001^b

 1

70 (11)

18 (9)

38 (11)

14 (10)

 2 +

99 (15)

13 (7)

38 (11)

48 (33)

ASA score

<0.001^b

 1-2

402 (60)

160 (83)

204 (62)

38 (26)

 3

235 (35)

30 (16)

115 (35)

90 (63)

 4-5

29 (4)

3 (2)

10 (3)

16 (11)

Localization (distance proximal to the anal verge)

0.006 ^b

 Proximal (12-15 cm)

210 (32)

71 (37)

102 (31)

37 (26)

 Middle (6-11 cm)

280 (42)

81 (42)

140 (42)

59 (41)

 Distal (0-5 cm)

176 (26)

41 (21)

87 (27)

48 (33)

Stage (TNM)

0.89^c

 I

150 (23)

49 (25)

73 (22)

28 (19)

 II

195 (29)

51 (26)

110 (33)

34 (24)

 III

153 (23)

43 (22)

77 (23)

33 (23)

 IV

124 (19)

42 (22)

58 (18)

24 (17)

 Unknown

44 (7)

8 (4)

11 (3)

25 (17)

Treatment intent categories

<0.001^d

 Curative intent

 Major resection

433 (65)

127 (66)

238 (72)

68 (47)

 Polypectomy

41 (6)

18 (9)

8 (2)

15 (10)

Non-curative intent

 Major resection

58 (9)

24 (12)

27 (8)

7 (5)

 Bypass/Stoma

47 (7)

9 (5)

22 (7)

16 (11)

 Best supportive care ^f

87 (13)

15 (8)

34 (10)

38 (26)

Surgery

0.68^a

 Elective surgery ^g

551 (95)

169 (95)

280 (95)

102 (96)

 Emergency surgery

28 (5)

9 (5)

15 (5)

4 (4)