Table 1 Demographic and clinical data of the cohort of 66 Salivary duct carcinoma (SDCa).

From: Molecular patterns in salivary duct carcinoma identify prognostic subgroups

Feature

No. of patients(N = 66)

Age in years, median (IQR)

63.1 (56.9–71.4)

 Range, years

24.7–92.0

Age (years), N (%)

 <50

8 (12.1)

 51–60

18 (27.3)

 61–70

20 (30.3)

 71–80

11 (16.7)

 >80

9 (13.6)

Sex, N (%)

 Female

18 (27.3)

 Male

48 (72.7)

Smoking status, N (%)

 Never smoker

19 (28.8)

 Moderate (<50 pack years)

15 (22.7)

 Heavy (>50 pack years)

8 (12.1)

 Unknown

24 (36.4)

Location of primary tumor, N (%)

 Parotid gland

54 (81.8)

 Submandibular gland

11 (16.7)

 Sublingual gland

1 (1.5)

 Minor salivary gland

0 (0)

Tumor arising from pleomorphic adenoma, N (%)

 Yes

7 (10.6)

 No

59 (89.4)

T-stage, N (%)*

 1

14 (21.2)

 2

19 (28.8)

 3

15 (22.7)

 4

18 (27.3)

N-stage, N (%)*

 0

22 (33.3)

 1

7 (10.6)

 2

33 (50.0)

 3

1 (1.5)

 Unknown

3 (4.5)

M-stage, N (%)*

 0

61 (92.4)

 1

4 (6.1)

 Unknown

1 (1.5)

Overall stage, N (%)*

 I

7 (10.6)

 II

7 (10.6)

 III

12 (18.2)

 IV

40 (60.6)

Initial treatment, N (%)

 Surgery alone

16 (24.2)

 Surgery and (chemo-) radiotherapy

49 (74.2)

 Radiotherapy alone

1 (1.5)

Recurrence after initial treatment, N (%)

 No persistence or recurrence

35 (53.0)

 Recurrence after initial treatment

31 (47.0)

Survival status at last census, N (%)

 Alive, no evidence of disease

32 (48.5)

 Alive with disease

6 (9.1)

 Died of disease

23 (34.8)

 Died of other cause

5 (7.6)

 Follow-up time in months, median (IQR)

38.2 (12.9, 64.5)

  1. *AJCC American Joint Committee on Cancer staging [10], IQR interquartile range.