Table 1 Patient demographics

Total

30

7

23

Sex (male/female)

20/10

5/2

15/8

Median age (range), years

69 (43–85)

60 (56–73)

74 (43–85)

Performance status (0–1/2/3–4)

19/5/6

5/0/2

14/5/4

Primary site (rectum/colon)

17/13

5/2

12/11

Stage (IV/relapse)

15/15

5/2

10/13

Number of metastatic organs (1/≥2)

13/17

5/2

8/15

Metastatic sites

  Lung

18

4

14

  Liver

13

4

9

  Peritoneum

8

1

7

  Abdominal lymph node

5

1

4

  Bone

5

0

5

  Mediastinal lymph node

4

0

4

  Others

2

0

2

Serum CEA (ng/mL) level

≤5/>5

7/23

2/5

5/18

K-ras status (wild–type/mutated/unknown)

12/14/4

4/3/0

8/11/4

Respiratory diseases

  MTB or MK infection

6/1

6/1

–

  COPD with oxygen inhalation

2

0

2

  Others

2

0

2