Table 1 Sociodemographic, medical, and clinical characteristics of patients newly diagnosed with head and neck cancer participating in the PTSD Coach trial

Sociodemographic

 - Age

56.4 (11.1)

57.5 (9.00)

55.1 (12.0)

56.8 (12.0)

 - Sex (male)

32/39 (82.1)

8/11 (72.7)

12/13 (92.3)

12/15 (80.0)

 - University education attainment

20/39 (51.3)

8/11 (72.7)

5/13 (38.5)

7/15 (46.7)

 -Born in Canada

25/39 (64.1)

7/10 (70.0)

10/13 (76.9)

8/15 (53.3)

 - Living alone

16/39 (41.0)

3/11 (27.2)

5/13 (38.5)

8/15 (53.3)

Medical Variables

 - Advanced stage (III/IV)

23/39 (59.0)

7/11 (63.6)

7/13 (53.8)

9/15 (60.0)

 - Tumour site

  Oropharynx

24/39 (61.2)

7/11 (63.6)

9/13 (69.2)

8/15 (53.3)

  Oral

3/39 (7.7)

1/11 (9.1)

1/13 (7.7)

1/15 (6.7)

  Larynx/ hypopharynx

2/39 (5.1)

2/11 (18.2)

-

-

  Nasopharynx

3/39 (7.7)

-

2/13 (15.4)

1/15 (6.7)

  Nasal/ paranasal

3/39 (7.7)

-

1/13 (7.7)

3/15 (20.0)

  Salivary

2/39 (5.1)

1/11 (9.1)

-

1/15 (6.7)

  Other

1/39 (2.6)

-

1/13 (7.7)

-

  Unknown

1/39 (2.6)

-

-

1/15 (6.7)

 Physical function—Eastern Cooperative Oncology Group (ECOG 2+)

  Oncology Group (ECOG 2 +)

5/38 (13.2)

1/11 (9.1)

3/13 (23.1)

1/15 (6.7)

Primary outcome

 Cancer-Related Anxiety (PCL-S)

  PCL-S baseline

32.0 (14.0)

26.8 (12.0)

39.6 (16.1)

29.1 (10.9)

  PCL-S 1 month

29.6 (12.4)

25.5 (9.2)

31.8 (12.9)

30.4 (13.7)

  PCL-S 3 months

31.4 (14.1)

27.1 (15.0)

37.3 (15.3)

30.6 (13.0)

  PCL-S 6 months

27.2 (9.5)

21.7 (5.4)

29.9 (9.1)

28.5 (10.8)

Secondary outcomes

 Rates of psychosocial oncology program uptake

  Psychotherapy baseline

14/39 (35.9)

4/11 (36.4)

6/13 (46.2)

4/15 (26.7)

  Psychotherapy 1 month

13/33 (39.4)

2/8 (0.25)

6/10 (60.0)

5/15 (33.3)

  Psychotherapy 3 months

10/28 (35.7)

1/7 (14.3)

5/7 (71.4)

4/14 (28.6)

  Psychotherapy 6 months

8/24 (33.3)

0/6 (0.0)

4/7 (57.1)

4/11 (36.4)

  Psychotherapy total 1 to 6 months

12/23 (52.2)

1/6 (16.7)

6/6 (100.0)

5/11 (45.5)

  Psychotropic baseline

10/39 (25.6)

3/11 (27.3)

3/13 (23.1)

4/15 (26.7)

  Psychotropic 1 month

8/33 (24.2)

1/8 (12.5)

5/10 (50.0)

2/15 (13.3)

  Psychotropic 3 months

10/28 (35.7)

1/7 (14.3)

5/7 (71.4)

4/14 (28.6)

  Psychotropic 6 months

6/24 (0.25)

0/6 (0.0)

3/7 (42.9)

3/11 (27.3)

  Psychotropic total 1 to 6 months

9/23 (39.1)

2/6 (33.3)

3/6 (50.0)

4/11 (36.4)

 Functional Assessment of Cancer Therapy (FACT)

  FACT-General (FACT-G) baseline

2.73 (0.6)

3.0 (0.6)

2.4 (0.5)

2.8 (0.7)

  FACT-G 1 month

2.8 (0.7)

2.9 (0.7)

2.7 (0.7)

2.7 (0.7)

  FACT-G 3 months

2.7 (0.6)

2.9 (0.7)

2.4 (0.5)

2.7 (0.6)

  FACT-G 6 months

2.9 (0.5)

2.9 (0.6)

2.6 (0.3)

3.0 (0.5)

  FACT-G + Head and Neck (HN) baseline

2.4 (0.5)

2.6 (0.4)

2.2 (0.3)

2.5 (0.5)

  FACT-G + HN 1 month

2.4 (0.5)

2.5 (0.5)

2.4 (0.5)

2.4 (0.6)

  FACT-G + HN 3 months

2.40 (0.4)

2.5 (0.5)

2.2 (0.4)

2.4 (0.4)

  FACT-G + HN 6 months

2.54 (0.3)

2.6 (0.2)

2.4 (0.3)

2.6 (0.4)

  FACT Physical Wellbeing (PW) baseline

2.78 (1.0)

3.1 (1.1)

2.3 (0.8)

3.0 (1.1)

  FACT PW 1 month

2.94 (1.0)

3.2 (1.2)

2.7 (0.7)

2.9 (0.9)

  FACT PW 3 months

2.85 (0.7)

3.1 (0.9)

2.6 (0.8)

2.9 (0.6)

  FACT PW 6 months

3.16 (0.6)

3.4 (0.7)

2.9 (1.1)

3.2 (0.4)

  FACT Functional Wellbeing (FW) baseline

2.45 (0.9)

2.7 (0.9)

2.1 (0.6)

2.6 (0.8)

  FACT FW 1 month

2.35 (1.0)

2.6 (1.0)

2.4 (0.5)

2.2 (1.0)

  FACT FW 3 months

2.22 (0.8)

2.6 (0.7)

1.7 (2.2)

2.3 (0.9)

  FACT FW 6 months

2.5 (0.9)

2.8 (1.0)

2.0 (3.4)

2.6 (0.9)

 Hospital Anxiety and Depression Scale (HADS)

  HADS Total baseline

21.2 (2.4)

20.6 (2.8)

21.7 (3.2)

21.2 (2.2)

  HADS Total 1 month

21.2 (3.5)

20.6 (2.8)

21.4 (2.1)

21.4 (4.0)

  HADS Total 3 months

19.6 (3.5)

18.6 (2.4)

20.3 (3.7)

19.7 (4.1)

  HADS Total 6 months

20.5 (3.2)

20.8 (3.1)

20.3 (4.2)

20.4 (4.0)

  HADS Anxiety baseline

7.5 (3.5)

6.5 (3.7)

8.1 (3.0)

7.8 (3.3)

  HADS Anxiety 1 month

7.4 (3.7)

6.5 (3.3)

7.9 (3.2)

7.6 (3.6)

  HADS Anxiety 3 months

6.4 (3.3)

4.7 (3.7)

7.4 (2.3)

6.7 (3.2)

  HADS Anxiety 6 months

6.6 (3.1)

5.7 (3.7)

7.1 (2.8)

6.7 (2.8)

  HADS Depression baseline

13.7 (2.1)

14.1 (2.1)

13.6 (2.3)

13.4 (2.0)

  HADS Depression 1 month

13.8 (2.4)

14.1 (1.1)

13.3 (2.8)

13.8 (2.8)

  HADS Depression 3 months

13.4 (2.9)

13.9 (2.5)

13.7 (2.3)

13.0 (3.4)

  HADS Depression 6 months

13.9 (2.4)

15.2 (1.3)

13.1 (3.0)

13.6 (2.3)

 Self-Stigma of Seeking Help (SSOSH)

  SSOHS Baseline

17.1 (2.4)

16.8 (2.8)

16.8 (0.8)

17.6 (2.8)

  SSOHS 1 month

18.3 (5.3)

16.3 (2.5)

16.0 (2.0)

20.1 (6.6)

  SSOHS 3 months

17.9 (2.1)

16.8 (1.1)

18.5 (2.1)

18.5 (2.6)

  SSOHS 6 months

17.6 (2.7)

17.5 (1.7)

20.0 (1.4)

16.6 (3.3)