Table 1 Patient characteristics for the entire cohort and only those with colorectal primary tumors. ^*At time of IORT

Number of patients

26

19

Median Age (years)^*

61 (39–79)

59 (39–79)

Sex

 Males

8

7

 Females

18

12

Primary Histology

 Colorectal adenocarcinoma

19

N/A

 Appendiceal adenocarcinoma

2

 Cervical Squamous Cell

2

 Carcinoma

 Endometrioid Endometrial

1

 Uterine Carcinosarcoma

1

 Ovarian carcinoma

1

Initial definitive treatment modality

Surgery

25/26

19/19

EBRT (to pelvis)

8/26

6/19

Chemotherapy

17/26

14/19

Number of patients receiving pre-op EBRT with IORT

11

9

Median follow-up

10.4 (1.2–96.0) months

9.2 (1.2–61.2) months

Median time from initial treatment to recurrence treated with IORT

28 (5–136) months

29 (10–136) months