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Table 1 Characteristics of patients experiencing locoregional recurrence (LRR) or distant metastasis (DM) as first adenoid cystic carcinoma recurrence

From: Mortality risk after clinical management of recurrent and metastatic adenoid cystic carcinoma

 

Overall

LRR

DM

p value

Characteristic

36

20

16

 

Ethnicity

 White (incl. Hispanic)

25 (69.4%)

10 (50.0%)

15 (93.8%)

0.02

 Asian/Pacific-Islander

8 (22.2%)

7 (35.0%)

1 (6.3%)

 African-American

1 (2.8%)

1 (5.0%)

0

 Other

2 (5.6%)

2 (10.0%)

0

Female

24 (66.7%)

13 (65.0%)

11 (68.8%)

0.55

Male

12 (33.3%)

7 (35.0%)

5 (31.3%)

Initial Stage

0.38

 I-II

5 (22.7%)

1 (12.5%)

4 (28.6%)

 III-IV

15 (77.3%)

7 (87.5%)

10 (71.4%)

 Unknown

14

12

2

Initial Treatment

 Surgery

7 (19.4%)

6 (30.0%)

1 (6.3%)

0.08

 Surgery + PORT

29 (80.6%)

14 (70.0%)

15 (93.8%)

Age at recurrence, Median (IQR)

64 (44–74)

66 (47–76)

60 (42–70)

0.48

Months to recurrence after initial treatment, Median (IQR)

50 (16–88)

51 (15–108)

50 (18–77)

0.58

Low-risk

14 (38.9%)

9 (45.0%)

5 (31.3%)

0.31

High-risk

22 (61.1%)

11 (55.0%)

11 (68.8%)

 
  1. IQR interquartile range, RT radiation therapy, PORT post-operative radiation therapy