Skip to main content

Table 1 Patient demographics

From: Radiation therapy improves survival in rectal small cell cancer - Analysis of Surveillance Epidemiology and End Results (SEER) data

  

No_RT

RT

Pearson chi-square

  

N

%

N

%

P

 

Totals (n=71)

28

 

43

  

Sex

Male

16

57.10%

24

55.80%

0.912

Female

12

42.90%

19

44.20%

 

Race

White

25

89.30%

40

93.00%

0.458

Black

3

10.70%

2

4.70%

 

Other

0

0.00%

1

2.30%

 

Stage

0

1

3.60%

1

2.30%

0.584

I

8

28.60%

14

32.60%

 

II

7

25.00%

9

20.90%

 

III

9

32.10%

18

41.90%

 

Unknown

3

10.70%

1

2.30%

 

Cancer diagnosis sequence number

One primary only

18

64.30%

39

90.70%

0.013

1st of 2 or more

0

0.00%

1

2.30%

 

2nd of 2 or more

9

32.10%

2

4.70%

 

3rd of 3 or more

0

0.00%

1

2.30%

 

5th of 5 or more

1

3.60%

0

0.00%

 

Radiation

None

27

96.40%

0

0.00%

N/A

Beam radiation

0

0.00%

43

100.00%

 

Recommended, unknown if administered

1

3.60%

0

0.00%

 

Surgery

None/Unknown

14

50.00%

29

67.40%

0.142

Surgery given

14

50.00%

14

32.60%

 

Radiation sequence with surgery

No radiation and/or cancer-directed surgery

28

100.00%

29

67.40%

N/A

Radiation prior to surgery

0

N/A

2

4.70%

 

Radiation after surgery

0

N/A

12

27.90%

 

Surgery Groups

No/Unknown

14

50.00%

29

67.40%

0.34

Local surgery

7

25.00%

7

16.30%

 

Extended surgery

7

25.00%

7

16.30%

 

Reason no cancer-directed surgery

Surgery performed

14

50.00%

14

32.60%

0.226

Not recommended

10

35.70%

23

53.50%

 

Not recommended, contraindicated due to other conditions

0

0.00%

2

4.70%

 

Recommended but not performed, unknown reason

4

14.30%

2

4.70%

 

Recommended but not performed, patient refused

0

0.00%

1

2.30%

 

Recommended, unknown if performed

0

0.00%

1

2.30%

 
  1. The radiotherapy (RT) and no radiotherapy (No_RT) arms of the study were stratified based on sex, age, diagnostic sequence and treatments received. The two groups were subject to Pearson’s Chi-square statistical analysis. For the surgical categories: “No/Unknown” includes codes for: No surgery, incisional biopsy, bypass surgery only, surgery of regional site without primary site, unknown if surgery done. “Local surgery” includes codes for: local tumor excision, anterior/posterior resection, wedge or segmental resection, partial proctectomy, surgery NOS, polypectomy, excisional biopsy. “Extended surgery” includes codes for: Pull through with coloanal anastamosis, APR complete proctectomy, surgeries with partial or total removal of other organs.