Table 2 Background characteristics of patients identified by Algorithms 1 and 2

Age

 Mean ± SD

66.60 ± 13.07

66.69 ± 13.82

67.63 ± 12.57

67.83 ± 13.32

 Median [min–max]

69.0 [21–96]

69.0 [21–95]

69.0 [21–96]

69.5 [21–90]

Men, n (%)

815

(57.97)

135

(54.22)

285

(54.39)

50

(50.00)

Diagnosis, n (%)^a

 Colorectal cancer

512

(36.42)

84

(33.73)

15

(2.86)

2

(2.00)

 Rectal cancer

348

(24.75)

55

(22.09)

6

(1.15)

–

–

 Sigmoid colon cancer

226

(16.07)

51

(20.48)

226

(43.13)

51

(51.00)

 Ascending colon cancer

141

(10.03)

21

(8.43)

141

(26.91)

21

(21.00)

 Transverse colon cancer

76

(5.41)

16

(6.43)

76

(14.5)

14

(14.00)

 Cecal cancer

56

(3.98)

10

(4.02)

56

(10.69)

10

(10.00)

 Descending colon cancer

33

(2.35)

7

(2.81)

33

(6.3)

7

(7.00)

 Colon cancer

18

(1.28)

6

(2.41)

–

–

–

–

 Postoperative recurrence of rectal cancer

16

(1.14)

4

(1.61)

–

–

–

–

 Appendix cancer

15

(1.07)

–

–

–

–

–

–

 Ileocecal cancer

–

–

–

–

6

(1.15)

2

(2.00)