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Table 2 Teacher outcome variables for intervention and control groups

From: Mental health first aid training for high school teachers: a cluster randomized trial

 

Intervention group

Control group

Mean diff./OR for pre vs post by intervention interaction (95% CI)

Mean diff./OR for pre vs follow-up by intervention interaction (95% CI)

 

Pre

Post

Follow-up

Pre

Post

Follow-up

  

Mental Health Knowledge

        

Knowledge quiz: mean (SD)

11.14 (3.57)

13.07 (3.30)

12.68 (3.44)

11.26 (3.07)

11.11 (3.58)

10.76 (3.89)

2.08 (1.38-2.78)***

1.79 (1.06-2.52)***

Recognition of depression %

81.8

86.1

92.9

80.6

85.9

83.8

0.98 (0.27-3.56)

3.09 (0.77-12.43)

Beliefs about treatment for depression: mean (SD)

8.22 (2.39)

8.85 (2.54)

8.86 (2.39)

7.91 (2.44)

7.84 (2.74)

7.92 (2.46)

0.79 (0.23-1.34)**

0.73 (0.15-1.31)*

Personal Stigma Items: % Strongly Disagree

        

Could snap out of it

32.1

40.1

37.3

31.1

29.6

26.4

2.12 (0.76-5.90)

2.59 (0.87-7.69)

Personal weakness

53.9

54.4

55.4

63.2

49.0

54.0

3.07 (1.16-8.14)*

2.47 (0.91-6.76)

Not real illness: %

45.0

47.1

48.7

43.4

37.8

34.5

1.70 (0.67-4.32)

2.50 (0.94-6.66)

People with that problem are dangerous

35.6

37.7

38.0

35.2

34.7

33.3

1.05 (0.39-2.82)

1.60 (0.57-4.45)

Best to avoid people with that problem

72.3

62.0

66.0

68.9

62.2

59.8

0.75 (0.30-1.89)

1.17 (0.45-3.03)

People with that problem are unpredictable

8.1

12.3

12.7

14.2

10.4

11.5

3.54 (0.88-14.17)

3.36 (0.82-13.83)

If they had problem they would not tell anyone

25.0

31.4

26.4

28.3

18.6

16.1

3.79 (1.34-10.71)*

3.42 (1.13-10.32)*

Perceived Stigma Items: % ≥ Agree

        

Other people think could snap out of it

64.6

57.0

57.2

64.8

59.8

54.7

0.88 (0.34-2.26)

1.24 (0.47-3.33)

Other people believe a sign of personal weakness

52.7

52.9

56.0

58.5

56.7

45.9

1.10 (0.42-2.87)

3.01 (1.10-8.23)*

Other people believe not real illness

62.4

55.8

59.8

60.4

55.7

57.0

0.86 (0.37-2.02)

1.07 (0.44-2.60)

Other people believe they are dangerous

19.1

25.0

25.2

26.4

20.6

22.1

2.75 (0.98-7.66)

2.05 (0.72-5.85)

Other people would avoid people with that problem

23.6

29.7

28.9

27.4

23.7

24.4

2.42 (0.85-6.87)

1.90 (0.65-5.54)

Other people believe they are unpredictable

53.6

50.6

51.6

45.2

46.9

45.4

0.72 (0.31-1.68)

0.95 (0.40-2.28)

Other people would not tell anyone

61.4

59.1

51.6

67.6

51.6

52.9

2.57 (1.04-6.35)*

1.32 (0.52-3.36)

Intended Helping Behaviours Towards Students

        

Contact the family: % ≥ often

38.2

41.8

44.0

36.2

37.5

35.3

1.28 (0.47-3.48)

1.46 (0.52-4.13)

Discuss with another teacher: % ≥ often

72.3

80.1

73.4

69.5

62.9

60.7

3.73 (1.31-10.62)*

2.46 (0.86-7.05)

Discuss with counsellors: % ≥ often

82.3

87.1

86.6

81.9

74.5

75.9

3.87 (1.21-12.41)*

2.98 (0.90-9.91)

Discuss with member of administration: % ≥ often

37.7

39.2

40.8

42.9

39.8

47.1

1.36 (0.52-3.60)

0.99 (0.37-2.68)

Have conversation with student: % ≥ often

68.6

72.5

70.3

61.0

58.2

49.4

2.06 (0.75-5.68)

3.16 (1.10-9.06)*

Talk with peers of student: % ≥ often

18.2

22.2

21.0

13.6

9.2

12.6

3.24 (0.91-11.54)

1.70 (0.49-5.94)

Do nothing: % never

65.5

66.1

66.5

69.5

65.0

61.6

1.95 (0.70-5.48)

2.37 (0.82-6.81)

Help Given Towards Students: % ≥ Occasionally

        

Spoken with students about their mental health problems

52.1

52.1

54.8

53.3

51.0

47.7

1.34 (0.48-3.75)

1.73 (0.59-5.08)

Discussed a students' mental health problems with other teachers

67.9

72.4

66.2

70.5

68.4

58.1

1.87 (0.67-5.22)

1.91 (0.68-5.41)

Mental health issues raised in staff meetings

57.9

50.3

47.1

62.1

52.6

47.7

1.26 (0.51-3.07)

1.22 (0.48-3.08)

Confidence in Helping Students and Staff with Mental Health Problems: % ≥ Quite a Bit

        

Confidence to talk with students about mental health problems

19.0

32.6

34.2

20.8

20.4

17.4

8.09 (1.89-34.63)**

7.02 (1.65-29.79)**

Confidence in helping a colleague with mental health problem

16.4

25.0

32.3

20.8

15.3

14.9

7.22 (1.84-28.4)**

11.65 (2.87-47.32)***

School Policies on Student Mental Health

        

Review curriculum options/classroom practices: % ≥ often

54.3

56.7

58.0

59.1

48.5

41.9

2.22 (0.93-5.26)

3.76 (1.51-9.34)**

Review/changes school policy: % ≥ often

18.6

24.1

21.2

20.4

12.4

12.9

3.20 (1.12-9.14)*

2.44 (0.82-7.26)

Improve the relationships within the school: % ≥ often

65.6

69.4

68.2

71.4

61.2

58.1

3.09 (1.12-8.52)*

3.26 (1.14-9.27)*

School has written policy to deal with students with mental health problems: % yes

10.1

22.7

28.5

11.5

11.2

10.5

4.57 (1.28-16.26)*

7.28 (1.92-27.54)**

Policy been implemented in the last month: % ≥ occasionally

9.8

14.2

17.8

13.4

7.0

11.3

7.23 (0.85-61.37)

13.30 (1.32-133.44)*

Interacting with Colleagues: % ≥ Occasionally

        

Talked with staff member about their mental health problem

39.1

38.0

38.3

38.4

38.1

36.1

0.88 (0.35-2.22)

0.93 (0.35-2.45)

Talk about own mental health problem with a staff member

35.8

39.4

38.2

37.1

34.7

34.5

1.49 (0.58-3.82)

1.23 (0.46-3.29)

Seeking Additional Mental Health Information: % ≥ Occasionally

        

Visit any websites giving information about mental health

21.8

23.5

26.8

21.0

19.6

17.2

1.29 (0.42-3.91)

1.81 (0.56-5.79)

Read books or other written material bout mental health problems

43.9

49.1

39.9

38.1

38.8

35.6

1.30 (0.51-3.34)

0.85 (0.31-2.31)

Teacher Mental Health

        

K6 6-24 (severe psychological distress) %

29.8

34.3

25.8

25.5

22.1

25.3

2.41 (0.77-7.49)

0.66 (0.20-2.13)

K6 3-24 (medium-high psychological distress) %

63.5

59.2

58.9

58.8

55.8

59.0

0.96 (0.34-2.70)

0.61 (0.20-1.85)

  1. Legend: * p < 0.05; ** p < 0.01; *** p < 0.001